Frequently Asked Questions (FAQ)
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- Using QuerySurge
- Data Validation
- QuerySurge Use Cases
- – ETL Testing
- – Data Warehouse Testing
- – Big Data Testing
- – BI Report Testing
- – Data Migration Testing
- – DevOps for Data (DataOps)
- – ERP Data Testing
- – Flat File Testing
- QuerySurge & AI
- QuerySurge Architecture
- QuerySurge Installation
- QuerySurge Connectivity
- QuerySurge & Data
- QuerySurge Integrations
- QuerySurge Reporting
- QuerySurge Licensing
- QuerySurge Free Trials
- QuerySurge & Training
- QuerySurge Support
Using QuerySurge FAQ
Q: How is setup done for Source/Target?
A: QuerySurge has a Connection Wizard in the Administrative view to take you through the process of setting up connections to your Source and Target data sources.
Q: QuerySurge Agents - what are they? Where are they deployed in the environment?
A: The QuerySurge Agent is the component of the architecture that actually executes queries against Source and Target data sources, returning the results to QuerySurge. Agents are deployed in a hub-and-spoke relationship to the QuerySurge application server.
Q: Are there any syntax limitations for writing QueryPairs?
A: There are no syntax limitations. Any query syntax that you put in QuerySurge will be executed as-is. You may use all ANSI SQL syntax plus any custom syntax your database or data source supports.
Q: Can I use my existing SQL queries in QuerySurge as QueryPairs?
A: Absolutely - most testing groups already have SQL for their current testing process. This SQL can be either be used directly in QuerySurge or tweaked for QuerySurge to give you a jump-start in implementing your automated data testing effort.
Q: Do I have to manually run my tests, or can I schedule them to run?
A: You can schedule runs in QuerySurge either by creating a QuerySurge Scenario, which lets you schedule based on time, or you may use the QuerySurge execution API, which lets you schedule based on events external to QuerySurge.
Q: Is there an API to support the kick-off of an execution run?
A: Yes! The QuerySurge execution API lets you schedule based on events external to QuerySurge. The API is provided as a RESTful API that you can deploy in your environment and call into QuerySurge’s execution engine from external processes. The full DevOps for Data module also has 60+ other calls that allow you to do everything the QuerySurge interface allows you to do.
Q: What is the typical learning curve for a new QuerySurge user? Are there education services available?
A: QuerySurge provides a clean, intuitive workflow for all the major tasks, and our users find it easy to move their work into QuerySurge quickly.
QuerySurge also provides a Knowledge Base of articles, self-paced training, free certification exams, and a built-in tutorial.
Q: Do I need to know SQL to use QuerySurge?
A: It does help, but QuerySurge offers lots of ways to generate tests without knowing SQL. QuerySurge AI, our generative artificial intelligence module, automatically creates data validation tests, including transformational tests, based on data mappings. Test creation happens in minutes, converting data mappings into tests written in the data store’s native SQL with little to no human intervention from this low-code or no-code solution.
QuerySurge’s Query Wizard generates simple SQL queries for your straightforward tests, performing table-to-table, column-to-column, and row count compares. SQL knowledge will help you craft queries for your more complex tests.
See our course offerings to jump-start your use of QuerySurge.
Q: Does QuerySurge provide version control for the QueryPairs?
A: QuerySurge retains history for your QueryPairs and your Suites. You can see all revisions on each QueryPair, who made the revision, and when it was performed. You can also generate reports on QueryPair and Suite history for project audit or other management purposes.
Q: Can I share my reports with others?
A: Absolutely. QuerySurge reports can be exported either in pdf format or in Excel format for either sharing with co-workers of for documentation purposes.
Q: How is setup done for Source/Target?
A: QuerySurge has a Connection Wizard in the Administrative view to take you through the process of setting up connections to your Source and Target data sources.
Q: What else can I do with your API?
A: QuerySurge’s DevOps for Data is our full API that brings DevOps automation to data testing . It enables faster, smarter validation at every stage of your pipeline with 100+ calls and live Swagger documentation.
QuerySurge + Enterprise Data Validation FAQ
General / Introduction
Q: What is Enterprise Data Validation?
A: Enterprise Data Validation ensures that data across an organization’s systems — databases, applications, warehouses, and reports — is accurate, consistent, and reliable.
How QuerySurge Helps: QuerySurge automates enterprise-wide data validation, connecting to 200+ sources to ensure accuracy across the whole data landscape.
Q: Why is Enterprise Data Validation important?
A: Enterprises rely on trusted data for operations, analytics, and compliance. Errors can lead to financial loss, poor decisions, and regulatory risks.
How QuerySurge Helps: QuerySurge validates 100% of enterprise data, preventing costly mistakes and ensuring confidence in business decisions.
Q: How is Enterprise Data Validation different from data warehouse or ETL testing?
A: Data warehouse and ETL testing validate specific systems or pipelines, while enterprise validation spans multiple platforms, data domains, and business functions.
How QuerySurge Helps: QuerySurge unifies validation across ETL, ERP, BI, cloud, and on-prem sources for true enterprise coverage.
Q: What are the challenges in validating enterprise-scale data?
A: High data volumes, diverse platforms, schema changes, real-time pipelines, and compliance requirements.
How QuerySurge Helps: QuerySurge scales to billions of rows, adapts to schema changes, and generates audit-ready compliance reports.
Q: Which industries need Enterprise Data Validation the most?
A: Financial services, insurance, healthcare, government, energy, life sciences, retail, media/telecom, and technology.
How QuerySurge Helps: QuerySurge provides industry-specific reporting and compliance support (SOX, HIPAA, GDPR, PCI).
Process & Concepts
Q: What are the key steps in an Enterprise Data Validation process?
A: Requirement analysis → data profiling → test design → test execution → defect resolution → reporting.
How QuerySurge Helps: QuerySurge automates execution, integrates with defect trackers, and generates dashboards and reports.
Q: How do you validate data across multiple systems, databases, and platforms?
A: By reconciling source and target data across heterogeneous environments.
How QuerySurge Helps: QuerySurge supports 200+ technologies, validating data across data warehouses, databases, data lakes, APIs, flat files, and cloud-based apps.
Q: How do you validate structured, semi-structured, and unstructured data?
A: By testing relational schemas, JSON/XML, and file-based data consistently.
How QuerySurge Helps: QuerySurge supports structured (SQL), semi-structured (JSON, XML, Avro), and flat-file validation.
Q: How do you validate transformations across complex pipelines?
A: By checking that business rules and mappings are correctly applied.
How QuerySurge Helps: QuerySurge AI generates transformation tests directly from mapping documents.
Q: How do you validate enterprise reporting and analytics outputs?
A: By comparing BI dashboards, KPIs, and ERP reports against source data.
How QuerySurge Helps: QuerySurge BI Tester validates Tableau, Power BI, SAP Business Objects, IBM Cognos, Strategy, and Oracle Business Intelligence at the cell level.
Q: How do you ensure enterprise data lineage and traceability?
A: By validating data across every hop from ingestion to reporting.
How QuerySurge Helps: QuerySurge provides lineage-aware validation and governance-ready documentation.
Test Design & Execution
Q: How do you design test cases for Enterprise Data Validation?
A: By defining business rules, mappings, and validation criteria across multiple systems.
How QuerySurge Helps: QuerySurge AI auto-generates tests from mapping and requirement documents, reducing manual scripting.
Q: What are the critical validation scenarios at the enterprise level?
A: Data completeness, accuracy, consistency, transformation checks, and report validation.
How QuerySurge Helps: QuerySurge automates all these scenarios with reusable test libraries.
Q: How do you validate master data and reference data enterprise-wide?
A: By checking the consistency of key entities (customers, vendors, products, employees) across systems.
How QuerySurge Helps: QuerySurge detects duplicates, mismatches, and inconsistencies across master data domains.
Q: How do you test for data completeness, accuracy, and consistency?
A: By comparing counts, field-level values, and cross-system consistency.
How QuerySurge Helps: QuerySurge validates row-to-row and cell-to-cell data across sources and targets.
Q: How do you handle duplicates, missing data, and schema changes?
A: By running data quality rules and adapting validation logic as schemas evolve.
How QuerySurge Helps: QuerySurge automates anomaly detection and adapts reusable assets for schema changes.
Q: How do you validate real-time streaming data alongside batch data?
A: By validating ingestion events, transformations, and outputs in real-time and batch pipelines.
How QuerySurge Helps: QuerySurge supports validation for batch ETL and streaming frameworks (Kafka, Flink, Spark).
Performance & Scalability
Q: How do you validate billions of rows of enterprise data efficiently?
A: By using automated, parallelized validation instead of sampling.
How QuerySurge Helps: QuerySurge validates billions of rows at enterprise scale with optimized performance.
Q: How do you handle incremental vs. full data loads?
A: By validating deltas for incremental loads and reconciling all records for full loads.
How QuerySurge Helps: QuerySurge supports both incremental and full-load validation seamlessly.
Q: How do you ensure data quality under heavy transaction and integration loads?
A: By validating during peak and stress conditions.
How QuerySurge Helps: QuerySurge integrates validation into enterprise batch jobs and streaming workloads.
Tools & Automation
Q: What tools are used for Enterprise Data Validation?
A: Manual SQL, custom scripts, open-source tools, and enterprise platforms like QuerySurge, Informatica DVO, Tricentis Data Integrity, Talend, RightData, iCEDQ, and DataGaps.
How QuerySurge Helps: QuerySurge is the only purpose-built enterprise data validation solution with AI, BI testing, and 200+ connectors.
Q: How do you automate Enterprise Data Validation?
A: By embedding validation into pipelines with automated execution, defect logging, and reporting.
How QuerySurge Helps: QuerySurge automates end-to-end validation, reducing manual effort by up to 80%.
Q: How does QuerySurge compare to other enterprise testing tools?
A: Many tools require heavy scripting or cover limited use cases.
How QuerySurge Helps: QuerySurge offers broader coverage, AI-driven test creation, BI validation, and DevOps integration.
Q: Can Enterprise Data Validation be integrated into DevOps/DataOps workflows?
A: Yes. Modern enterprises require continuous data quality checks throughout the CI/CD pipeline.
How QuerySurge Helps: QuerySurge integrates with Jenkins, GitLab, Azure DevOps, and other CI/CD tools via 60+ APIs with Swagger documentation.
Q: How do defect tracking and CI/CD tools fit into enterprise validation?
A: By logging validation results into issue and release management systems.
How QuerySurge Helps: QuerySurge integrates with Jira, Azure DevOps, GitHub, GitLab, TestRail, Open Text ALM (formerly HP), IBM Engineering Test Management (ETM), and other ALM tools for seamless defect resolution.
Compliance & Governance
Q: How does Enterprise Data Validation support compliance (SOX, HIPAA, GDPR, PCI)?
A: By ensuring regulatory data requirements are met and validated.
How QuerySurge Helps: QuerySurge generates compliance-ready reports tailored for auditors.
Q: How do you provide enterprise-wide audit trails of validation results?
A: By logging every test, result, and user action.
How QuerySurge Helps: QuerySurge creates detailed audit trails for governance and regulatory audits.
Q: What KPIs and metrics measure enterprise data quality?
A: Accuracy, completeness, timeliness, consistency, and defect resolution rates.
How QuerySurge Helps: QuerySurge dashboards track KPIs and provide executive-level data quality reporting.
Q: How do you align Enterprise Data Validation with data governance frameworks?
A: By embedding validation into governance policies and processes.
How QuerySurge Helps: QuerySurge enforces governance by validating data lineage, traceability, and compliance rules.
Additional Questions
Q: What are common defects found in Enterprise Data Validation?
A: Missing records, duplicates, incorrect transformations, mismatched schemas, and reporting errors.
How QuerySurge Helps: QuerySurge detects these defects instantly with detailed mismatch reporting.
Q: How do you validate data in cloud + on-prem hybrid ecosystems?
A: By connecting to both environments and reconciling results.
How QuerySurge Helps: QuerySurge supports hybrid cloud validation across AWS, Azure, GCP, and on-prem.
Q: How do you ensure trust in enterprise analytics, AI, and ML pipelines?
A: By validating the data feeding models and dashboards.
How QuerySurge Helps: QuerySurge validates upstream pipelines, ensuring downstream AI/analytics use trusted data.
Q: What role does AI play in Enterprise Data Validation?
A: AI reduces manual effort and accelerates test creation.
How QuerySurge Helps: QuerySurge AI auto-generates test cases from mapping documents and business rules.
Q: What are best practices for scaling data validation across an enterprise?
A: Automate tests, centralize results, integrate into pipelines, and enforce governance policies.
How QuerySurge Helps: QuerySurge provides reusable assets, centralized dashboards, and CI/CD integration for enterprise scalability.
QuerySurge & Enterprise Data Validation FAQ
General / Introduction
Q: What is QuerySurge and how does it support Enterprise Data Validation?
A: QuerySurge is an automated data validation platform that ensures data accuracy, consistency, and completeness across an enterprise’s systems.
How QuerySurge Helps: QuerySurge validates data across ERP, CRM, data warehouses, cloud platforms, and BI systems — delivering trusted enterprise-wide results.
Q: Why should enterprises use QuerySurge instead of manual SQL or homegrown frameworks?
A: Manual scripts are time-consuming, error-prone, and lack scalability or reporting.
How QuerySurge Helps: QuerySurge automates validation, reduces effort by up to 80%, and provides dashboards, defect integration, and audit-ready reports.
Q: How is QuerySurge different from other enterprise data validation tools?
A: Many tools focus on specific platforms or require heavy coding.
How QuerySurge Helps: QuerySurge offers 200+ connectors, AI-powered test creation, BI validation, and full DevOps/DataOps integration in one solution.
Q: Can QuerySurge validate data across multiple systems (ERP, CRM, cloud, on-prem, BI)?
A: Yes. Enterprises run hybrid environments with multiple platforms.
How QuerySurge Helps: QuerySurge connects to ERP (SAP, Oracle, Workday), CRM (Salesforce), BI (Power BI, Tableau, others), cloud (AWS, Azure, GCP), and on-prem databases.
Q: What industries use QuerySurge for enterprise-wide data validation?
A: Automotive, banking, financial services, healthcare, higher education, government, life sciences, insurance, energy/utilities, manufacturing, media/telecom, retail, and technology.
How QuerySurge Helps: QuerySurge ensures compliance and data trust in highly regulated industries.
Capabilities & Features
Q: How does QuerySurge validate enterprise master data (customers, vendors, products, employees)?
A: By checking consistency, accuracy, and uniqueness across multiple systems.
How QuerySurge Helps: QuerySurge detects duplicates, missing data, and mismatched records automatically.
Q: Can QuerySurge validate transactional data across multiple enterprise systems?
A: Yes. Transactional data drives finance, HR, and supply chain processes.
How QuerySurge Helps: QuerySurge validates ERP transactions, financial postings, HR/payroll runs, and supply chain updates.
Q: Does QuerySurge support validation of both structured and semi-structured data (JSON, XML, flat files)?
A: Yes. Enterprises rely on diverse data formats.
How QuerySurge Helps: QuerySurge validates structured (SQL), semi-structured (JSON, XML, Avro), and flat-file data at scale.
Q: How does QuerySurge validate enterprise-wide reporting (Power BI, Tableau, SAP BW, Cognos, Oracle BI, Strategy)?
A: By comparing report outputs against underlying data.
How QuerySurge Helps: QuerySurge BI Tester validates BI reports at the cell level across multiple platforms.
Q: How does QuerySurge ensure data lineage and traceability across enterprise pipelines?
A: By validating data across every transformation and hop.
How QuerySurge Helps: QuerySurge provides lineage-aware validation and governance-ready documentation.
Q: Can QuerySurge reconcile billions of records across multiple systems?
A: Yes. Enterprise systems often involve very large datasets.
How QuerySurge Helps: QuerySurge scales to billions of rows with parallelized validation.
Q: How does QuerySurge detect schema changes in enterprise systems?
A: By identifying differences between expected and actual structures.
How QuerySurge Helps: QuerySurge flags schema mismatches and adapts reusable test assets.
Automation & Workflow
Q: How does QuerySurge automate Enterprise Data Validation?
A: By automating test creation, execution, comparisons, defect logging, and reporting.
How QuerySurge Helps: QuerySurge AI auto-generates tests from mapping documents and integrates results into dashboards and ALM tools.
Q: Can QuerySurge be integrated into CI/CD and DataOps pipelines?
A: Yes. Continuous validation is critical in enterprise pipelines.
How QuerySurge Helps: QuerySurge integrates with Jenkins, GitHub, GitLab, Azure DevOps, and other CI/CD tools via 60+ DevOps APIs.
Q: Does QuerySurge provide automated data quality gates for enterprise workflows?
A: Yes. Data should not progress without validation.
How QuerySurge Helps: QuerySurge enforces pass/fail promotion gates, blocking bad data from reaching production.
Q: Can QuerySurge integrate with defect tracking tools like Jira or Azure DevOps?
A: Yes. Defects should flow directly into enterprise workflows.
How QuerySurge Helps: QuerySurge automatically logs validation failures into Jira, Azure DevOps, TestRail, Open Text ALM (formerly HP), IBM Engineering Test Management (ETM), and other ALM platforms.
Q: How does QuerySurge fit into enterprise governance and compliance workflows?
A: By embedding validation and reporting into governance processes.
How QuerySurge Helps: QuerySurge enforces governance policies with lineage-aware validation and compliance-ready reports.
Performance & Scalability
Q: Can QuerySurge scale to validate enterprise datasets with billions of rows?
A: Yes. Manual testing cannot cover such scale.
How QuerySurge Helps: QuerySurge validates massive datasets with parallel execution and optimized performance.
Q: How quickly can QuerySurge execute enterprise-wide validation?
A: Within deployment and cutover windows.
How QuerySurge Helps: QuerySurge runs validations rapidly, keeping projects on schedule.
Q: Does QuerySurge provide dashboards and analytics for enterprise validation results?
A: Yes. Visibility is critical at scale.
How QuerySurge Helps: QuerySurge provides real-time dashboards with test results, trends, and KPIs.
Compliance & Reporting
Q: Does QuerySurge generate audit trails for enterprise validation?
A: Yes. Every test must be logged for governance.
How QuerySurge Helps: QuerySurge creates detailed audit trails for regulators and auditors.
Q: Can QuerySurge produce compliance-ready reports (SOX, HIPAA, GDPR, PCI)?
A: Yes. Enterprises must prove compliance through reporting.
How QuerySurge Helps: QuerySurge produces regulator-ready reports for financial, healthcare, and government audits.
Q: How does QuerySurge enforce governance and regulatory policies at the enterprise level?
A: By validating data quality rules and documenting lineage.
How QuerySurge Helps: QuerySurge enforces governance through automated validation and compliance dashboards.
AI & Advanced Features
Q: What role does QuerySurge AI play in Enterprise Data Validation?
A: AI accelerates test creation and reduces manual work.
How QuerySurge Helps: QuerySurge AI auto-generates transformational test cases from enterprise mapping documents.
Q: Can QuerySurge AI generate validation tests automatically from enterprise mapping documents?
A: Yes. This reduces test design effort dramatically.
How QuerySurge Helps: QuerySurge AI translates mapping rules into reusable automated validation tests.
Q: Does QuerySurge support no-code/low-code validation for enterprise teams?
A: Yes. Non-technical users can also participate.
How QuerySurge Helps: QuerySurge provides wizards, reusable assets, and low-code options for enterprise-wide collaboration.
Competitive & ROI
Q: How does QuerySurge compare to other tools (Informatica DVO, RightData, DataGaps, IceDQ)?
A: Competitors often require more coding or cover fewer scenarios.
How QuerySurge Helps: QuerySurge offers broader connectivity, BI validation, DevOps APIs, and enterprise scalability.
Q: Why use QuerySurge instead of building custom SQL/Python validation frameworks?
A: Custom frameworks are costly to build and maintain, with limited reporting.
How QuerySurge Helps: QuerySurge delivers an enterprise-ready solution with automation, dashboards, and compliance features out of the box.
Q: What ROI can enterprises expect from QuerySurge?
A: Faster releases, fewer defects, reduced compliance risk, and higher data trust.
How QuerySurge Helps: QuerySurge reduces testing effort by up to 80% and provides ROI within months.
Q: How quickly can QuerySurge identify and resolve enterprise-wide data quality issues?
A: Almost instantly, during validation cycles.
How QuerySurge Helps: QuerySurge enforces automated gates that block bad data before it impacts production.
QuerySurge Use Cases FAQ
Q: What use cases are supported?
- Data Warehouse & ETL Testing: Automate the data validation & testing of Data Warehouses and the ETL process.
- Big Data Testing: Test any Big Data implementation, whether it be Hadoop or NoSQL data store from all major vendors.
- DevOps for Data / Continuous Testing: Dynamically create data validation tests and integrate with other solutions in your DataOps pipeline.
- Data Migration Testing: Migrating from legacy systems to a new system, from one vendor to another, or from on-prem to the cloud.
- BI Report Testing: Retrieve data from reports and validate that data against a source or target data or another report.
- Enterprise App / ERP Testing: Automate the testing of data feeds into/out of ERP, CRM, HR system, or any large enterprise system.
Q: Does QuerySurge use artificial intelligence to support its testing?
A: Yes it does! QuerySurge AI is a generative Artificial Intelligence solution that simplifies and speeds up ETL testing. It creates data validation tests, including transformational tests, based on data mappings.
The average data warehouse project has between 250 to 1,500 data mappings and test creation for each mapping requires approximately 1 hour per test. With QuerySurge AI, test creation happens in minutes, converting data mappings into tests written in the data store’s native SQL with little to no human intervention, reducing the need for people skilled in SQL.
Q: What data pain points does QuerySurge solve?
A: QuerySurge solves the following data challenges:
- The need for improved data quality.
QuerySurge can find data issues such as missing data, truncated data, type mismatches, null translations, wrong translations, misplaced data, extra records, not enough records, transformation logic errors, sequence generator errors, undocumented requirements, duplicate records, numeric precision errors, and rejected rows.
- The ability to test across diverse platforms.
Whether a Big Data lake, Data Warehouse, traditional database, NoSQL document store, BI reports, flat files, JSON files, SOAP or restful web services, XML, mainframe files, or any other data store.
- The need to analyze your data, looking for anomalies.
QuerySurge’s Data Analytics Dashboard and Data Intelligence Reports cover the lifecycle of your data testing process by reporting on trends, finding problematic areas and providing root cause analysis. Also, Ready for Analytics helps you to integrate your preferred Business Intelligence tool with QuerySurge to gain deeper, real-time insights into your data validation and ETL testing workflows.
- The need to speed up your data validation and ETL testing through automation.
You can leverage artificial intelligence to easily automate your data testing. Automation can kick off your tests, perform the data validation, and provide automated emailed reports of the results to your entire team, while updating your change management system. QuerySurge can validate up to 100% of all data up to 1,000 x faster than traditional testing.
- The ability to integrate data validation into you CI/CD DataOps pipeline.
QuerySurge integrates with most Data Integration/ETL solutions, Build/Configuration solutions, and QA/ Change Management solutions through our the industry’s most extensive RESTful API.
ETL Testing & QuerySurge FAQ
General ETL Testing Questions
Q: What is ETL Testing?
A: ETL (Extract, Transform, Load) Testing ensures that data is correctly extracted from source systems, transformed according to business rules, and loaded accurately into the target data warehouse or data lake.
How QuerySurge Helps: QuerySurge automates end-to-end ETL validation, connecting to 200+ data sources and verifying every row and column for accuracy.
Q: Why is ETL Testing important?
A: Without ETL Testing, bad data can lead to flawed reports, incorrect analytics, and poor business decisions.
How QuerySurge Helps: QuerySurge detects defects early, preventing millions in losses caused by inaccurate data.
Q: How is ETL Testing different from Database Testing?
A: Database Testing validates a single database’s objects, while ETL Testing validates the flow of data across multiple systems and transformations.
How QuerySurge Helps: QuerySurge was built for cross-system data testing, validating data from source to target, across every hop.
Q: What are the key challenges in ETL Testing?
A: Large data volumes, complex transformations, schema changes, poor data quality, and lack of automation.
How QuerySurge Helps: QuerySurge scales to billions of rows, adapts to schema changes, and automates transformation validation with no-code/low-code assets.
Q: What are the types of ETL Testing?
A: Data completeness, data accuracy, transformation validation, regression testing, incremental load testing, and performance testing.
How QuerySurge Helps: QuerySurge supports all ETL test types with reusable test assets, automated regression suites, and performance dashboards.
Q: What is the difference between ETL Testing and Data Warehouse Testing?
A: ETL Testing focuses on validating pipelines; Data Warehouse Testing also covers reporting, metadata, and BI validation.
How QuerySurge Helps: QuerySurge bridges both — validating pipelines and BI reports with dedicated BI connectors (Power BI, Tableau, Qlik, Cognos, etc.).
Process & Concepts
Q: What are the different stages in ETL Testing?
A: Requirement analysis, test planning, test design, test execution, defect logging, and reporting.
How QuerySurge Helps: QuerySurge supports the full lifecycle with automation, defect integration (Jira, Azure DevOps), and real-time reporting.
Q: What are the typical steps in an ETL Testing lifecycle?
A: Identify requirements → design test cases → prepare test data → execute tests → validate results → log/report defects.
How QuerySurge Helps: QuerySurge automates execution and reporting, reducing testing cycles by up to 80%.
Q: How do you validate data transformations in ETL Testing?
strong>A: By comparing input data against transformed output and ensuring business rules are applied correctly.
How QuerySurge Helps: QuerySurge AI generates transformation tests automatically from mapping docs, eliminating manual scripting.
Q: What are the best practices for ETL Testing?
A: Test early, validate 100% of data, automate wherever possible, include regression testing, and maintain audit trails.
How QuerySurge Helps: QuerySurge enforces best practices with automation, regression support, and compliance-ready audit logs.
Q: What are common ETL errors or defects?
A: Missing or duplicate records, transformation errors, data truncation, precision loss, and schema mismatches.
How QuerySurge Helps: QuerySurge detects these issues with cell-to-cell comparisons and error dashboards.
Test Design & Execution
Q: How do you design test cases for ETL Testing?
A: Define input conditions, expected transformations, and output validations with clear pass/fail criteria.
How QuerySurge Helps: QuerySurge provides reusable assets and AI-assisted test creation to accelerate design.
Q: What are the critical test scenarios in ETL Testing?
A: Data completeness, accuracy, transformation logic, incremental loads, and performance.
How QuerySurge Helps: QuerySurge validates every scenario automatically, including incremental and regression testing.
Q: How do you perform data completeness and data accuracy testing?
A: By checking row counts, field-level accuracy, and reconciling source vs. target data.
How QuerySurge Helps: QuerySurge automates these checks at scale, ensuring full coverage rather than samples.
Q: How do you handle duplicate records during ETL Testing?
A: By detecting duplicates and validating deduplication rules in transformation logic.
How QuerySurge Helps: QuerySurge flags duplicates instantly, providing detailed mismatch reports.
Tools & Automation
Q: What tools are available for ETL Testing (manual and automated)?
A: Manual SQL scripts, Python frameworks, or automated tools like QuerySurge, Informatica DVO, Talend, and RightData.
How QuerySurge Helps: QuerySurge eliminates manual scripting, offering an enterprise-ready, automated platform with ROI in months.
Q: What is the role of QuerySurge, Informatica DVO, Talend, etc. in ETL Testing?
A: They provide automation for ETL validation. QuerySurge specializes in full automation, DevOps integration, and BI testing.
How QuerySurge Helps: QuerySurge delivers broader connectivity, better BI validation, and AI-powered automation compared to alternatives.
Q: How do you automate ETL Testing?
A: By using tools that connect to sources and targets, validate transformations, and integrate with CI/CD workflows.
How QuerySurge Helps: QuerySurge automates the entire cycle — from test creation (via AI) to execution, reporting, and DevOps integration.
Q: How does ETL Testing fit into CI/CD and DevOps pipelines?
A: ETL Testing runs automatically as part of deployments, enforcing data quality gates.
How QuerySurge Helps: QuerySurge integrates with Jenkins, GitLab, and Azure DevOps, embedding validation directly into your pipeline.
Advanced
Q: What’s the difference between incremental load and full load in ETL Testing?
A: Full load reloads all data, while incremental load processes only new or changed data.
How QuerySurge Helps: QuerySurge validates both approaches, ensuring consistency in full loads and accuracy in incremental loads.
Q: How do you validate slowly changing dimensions (SCDs) in ETL Testing?
A: By checking historical accuracy (Type 2), overwrite rules (Type 1), or hybrid logic.
How QuerySurge Helps: QuerySurge validates SCD logic automatically, ensuring historical and business-rule compliance.
Q: How do you validate data across multiple sources and targets?
A: By reconciling data movement across multiple systems and ensuring consistency.
How QuerySurge Helps: QuerySurge connects to 200+ sources and validates multi-hop pipelines end-to-end.
Q: How do you ensure data lineage and traceability during ETL Testing?
A: By tracking validation at each transformation step and maintaining audit logs.
How QuerySurge Helps: QuerySurge provides lineage-aware validation and compliance-ready audit reports.
Q: How do you deal with schema changes during ETL Testing?
A: By updating tests, validating new mappings, and ensuring backward compatibility.
How QuerySurge Helps: QuerySurge’s reusable assets and metadata intelligence adapt tests quickly to schema changes.
ETL Testing - QuerySurge-Specific Questions
General Questions
Q: What is QuerySurge?
A: QuerySurge is the leading automated data validation and ETL testing solution. It ensures that data extracted, transformed, and loaded across your enterprise is accurate, complete, and analytics ready.
Q: How is QuerySurge different from other ETL testing tools?
A: QuerySurge was purpose-built for ETL testing. Unlike generic database or QA tools, it validates 100% of your data, provides audit-ready reports, supports BI report testing, and integrates seamlessly into DevOps/CI/CD pipelines.
Q: Is QuerySurge open source or commercial?
A: QuerySurge is a commercial enterprise solution, with subscription and perpetual licensing options.
Q: What industries use QuerySurge for ETL Testing?
A: QuerySurge is used globally across financial services, insurance, healthcare, government, life sciences, energy/utilities, retail, and technology — anywhere data quality impacts business decisions.
Q: What data problems does QuerySurge solve?
A: QuerySurge prevents bad data from entering reporting and analytics systems by catching issues such as data loss, transformation errors, schema mismatches, duplication, and inconsistencies.
Capabilities & Features
Q: How does QuerySurge automate ETL Testing?
A: QuerySurge connects to 200+ data sources, compares source and target data, validates transformations, and logs results automatically with dashboards and audit trails.
Q: Can QuerySurge test large datasets (millions/billions of rows)?
A: Yes. QuerySurge scales to billions of rows with enterprise-grade performance, validating data at both row and cell level.
Q: What types of ETL tests can QuerySurge run?
A: QuerySurge runs completeness, accuracy, transformation, regression, incremental load, and performance tests — all automated and repeatable.
Q: How does QuerySurge validate data transformations?
A: By applying business rules and comparing expected results to actual target values. QuerySurge AI can auto-generate transformation tests from mapping docs.
Q: Can QuerySurge compare source and target data at the cell level?
A: Yes. QuerySurge validates data row-to-row and cell-to-cell for exact accuracy.
Q: Does QuerySurge support BI report testing as well as ETL testing?
A: Yes. QuerySurge BI Tester validates that BI tool reports (Power BI, Tableau, Qlik, Cognos, etc.) match the underlying source data.
Q: How does QuerySurge handle schema changes?
A: QuerySurge uses reusable test assets and metadata intelligence to quickly adapt tests when schema changes occur.
Integrations & Workflow
Q: What ETL/ELT tools does QuerySurge integrate with?
A: QuerySurge integrates with Informatica, Talend, Databricks, dbt, SSIS, Oracle Data Integrator, AWS Glue, and many others.
Q: Can QuerySurge be integrated into CI/CD pipelines?
A: Yes. QuerySurge offers 60+ DevOps for Data APIs for integration with Jenkins, Azure DevOps, GitLab, Bamboo, and more.
Q: Does QuerySurge integrate with Jira, Azure DevOps, or other defect tracking systems?
A: Yes. QuerySurge integrates directly with Jira, Azure DevOps, and other ALM/test management platforms for defect logging.
Q: Can QuerySurge connect to both cloud and on-prem data sources?
A: Yes. QuerySurge supports 200+ connectors, including Snowflake, Redshift, BigQuery, Databricks, on-prem databases, flat files, and APIs.
Q: How does QuerySurge fit into a DevOps for Data or DataOps workflow?
A: QuerySurge acts as an automated data quality gate in your pipeline, ensuring only trusted data flows downstream.
Performance & Scalability
Q: How fast is QuerySurge when testing large ETL jobs?
A: QuerySurge is optimized for enterprise scale, validating millions of rows in minutes and billions with parallelized execution.
Q: Does QuerySurge provide performance dashboards and reports?
A: Yes. QuerySurge includes performance metrics on query execution, throughput, and bottlenecks.
Q: How does QuerySurge handle incremental load vs. full load testing?
A: QuerySurge validates both — ensuring deltas are correctly applied for incremental loads and data consistency is maintained in full loads.
Compliance & Reporting
Q: Does QuerySurge provide audit trails of test runs?
A: Yes. Every test, result, and user action is logged for full traceability.
Q: Can QuerySurge produce compliance-ready reports (SOX, HIPAA, GDPR)?
A: Yes. QuerySurge generates presentation-quality reports for regulators, auditors, and stakeholders.
Q: How does QuerySurge ensure data lineage and traceability?
A: QuerySurge tracks validation across every hop, from source to target, delivering lineage-aware testing.
AI & Automation
Q: What is QuerySurge AI and how does it help with ETL testing?
A: QuerySurge AI is a generative AI module that auto-creates data validation tests, including transformation logic, from mapping documents.
Q: Can QuerySurge generate test cases automatically from mapping documents?
A: Yes. QuerySurge AI reduces manual scripting by automatically generating tests based on mappings.
Q: Does QuerySurge support no-code/low-code test creation?
A: Yes. QuerySurge provides wizards, reusable test assets, and AI-driven automation for both technical and non-technical testers.
Competitive Questions
Q: How does QuerySurge compare to Informatica DVO, RightData, DataGaps, or IceDQ?
A: QuerySurge offers broader connectivity, advanced BI report testing, DevOps APIs, and AI-driven automation, delivering stronger coverage and ROI than competitors.
Q: Why choose QuerySurge over building a custom SQL/Python testing framework?
A: Custom frameworks are expensive to build and maintain, lack reporting, and provide limited coverage. QuerySurge is enterprise-ready, scalable, and comes with dashboards, compliance reporting, and CI/CD integration.
Q: How does QuerySurge’s ROI compare to manual testing?
A: QuerySurge customers achieve ROI in months. By replacing manual SQL validation with automation, teams cut testing time by up to 80% and eliminate costly bad-data risks (Gartner estimates bad data costs $14M per year on average).
Data Warehouse Testing & QuerySurge FAQ
General Questions
Q: What is Data Warehouse Testing?
A: Data Warehouse Testing ensures that data loaded into a warehouse is accurate, consistent, and aligned with business requirements for reporting and analytics.
How QuerySurge Helps: QuerySurge validates data across the entire pipeline - from source systems to warehouse to BI reports - ensuring analytics-ready accuracy.
Q: Why is Data Warehouse Testing important?
A: Because business intelligence and analytics rely on the warehouse as a single source of truth. Testing ensures confidence in decision-making.
How QuerySurge Helps: QuerySurge verifies 100% of your data mappings automatically, preventing bad insights caused by flawed warehouse data.
Q: How is Data Warehouse Testing different from ETL Testing?
A: ETL Testing focuses on the data pipeline, while Data Warehouse Testing validates loaded data, business rules, metadata, and reporting outputs.
How QuerySurge Helps: QuerySurge covers both ETL and warehouse testing, ensuring accuracy across the whole data lifecycle.
Q: What are the challenges in Data Warehouse Testing?
A: Large data volumes, historical loads, complex transformations, slowly changing dimensions (SCDs), and schema changes.
How QuerySurge Helps: QuerySurge scales to billions of rows, validates SCDs, and adapts quickly to schema or business rule changes.
Q: What types of testing are performed in a data warehouse?
A: Data completeness, data accuracy, transformation testing, metadata testing, business rule validation, performance testing, and regression testing.
How QuerySurge Helps: QuerySurge automates all of these with reusable test assets and audit-ready reporting.
Process & Concepts
Q: What are the key stages in Data Warehouse Testing?
A: Requirement analysis, test planning, test case design, test execution, defect logging, and reporting.
How QuerySurge Helps: QuerySurge integrates into this lifecycle with automation, defect tracking, and dashboards for real-time reporting.
Q: How do you validate data completeness in a data warehouse?
A: By checking record counts between the sources and the target data warehouse and confirming no data loss.
How QuerySurge Helps: QuerySurge automates record count checks and complete row-level comparisons for completeness.
Q: How do you validate data transformations in a data warehouse?
A: By ensuring transformations match business logic and expected output values.
How QuerySurge Helps: QuerySurge AI auto-generates transformation tests from mapping documents, eliminating manual coding.
Q: What is metadata testing in a data warehouse?
A: It validates schema, data types, constraints, relationships, and indexes in the warehouse.
How QuerySurge Helps: QuerySurge validates metadata automatically, catching mismatches between schema definitions and data.
Q: How do you test business rules applied in a data warehouse?
A: By validating that calculated fields, aggregations, and filters match defined business logic.
How QuerySurge Helps: QuerySurge compares expected rule outputs against actual data, providing detailed mismatch reports.
Q: What is the difference between OLTP and OLAP testing?
A: OLTP testing focuses on transactional systems; OLAP testing focuses on analytical queries and warehouse performance.
How QuerySurge Helps: QuerySurge validates both transactional feeds into warehouses and OLAP query results for accuracy.
Test Design & Execution
Q: How do you design test cases for Data Warehouse Testing?
A: Define input conditions, expected outputs, and business rules for each stage of the data load.
How QuerySurge Helps: QuerySurge provides wizards, reusable assets, and AI-assisted test creation for rapid test design.
Q: What are critical test scenarios for a data warehouse?
A: Data completeness, data accuracy, incremental loads, historical loads, SCD validation, and performance testing.
How QuerySurge Helps: QuerySurge automates all these scenarios and maintains repeatable regression suites.
Q: How do you test slowly changing dimensions (SCDs)?
A: By validating that historical and current records are handled correctly per SCD Type (1, 2, or 3).
How QuerySurge Helps: QuerySurge validates SCD logic automatically, ensuring accurate historical tracking.
Q: How do you validate aggregated data in a warehouse?
A: By checking that measures like sums, averages, and counts are computed correctly.
How QuerySurge Helps: QuerySurge compares aggregated results against source data and business rule logic.
Q: How do you test historical data loads?
A: By validating that past data is loaded accurately and transformations remain consistent over time.
How QuerySurge Helps: QuerySurge automates regression testing to ensure historical data integrity after updates or schema changes.
Q: How do you handle data quality issues in warehouse testing?
A: By identifying duplicates, missing values, and invalid formats, then verifying correction processes.
How QuerySurge Helps: QuerySurge flags data quality defects with detailed reports, helping teams fix issues quickly.
Q: How do you validate queries in an OLAP system?
A: By ensuring query results match expected aggregations and business definitions.
How QuerySurge Helps: QuerySurge validates OLAP query outputs against the source data automatically.
Tools & Automation
Q: What tools are used for Data Warehouse Testing?
A: Manual SQL/Python scripts, or automated tools like QuerySurge, Informatica DVO, Tricentis, Talend, RightData, and iCEDQ.
How QuerySurge Helps: QuerySurge is the most comprehensive automation platform, purpose-built for ETL and warehouse validation.
Q: How does automation help in Data Warehouse Testing?
A: It reduces manual effort, improves coverage, speeds up cycles, and provides repeatable tests.
How QuerySurge Helps: QuerySurge can automate 100% of testing, including transformation validation and regression.
Q: Can CI/CD pipelines include Data Warehouse Testing?
A: Yes. Data validation can run as part of deployments to enforce quality gates.
How QuerySurge Helps: QuerySurge integrates with Jenkins, GitLab, Azure DevOps, and any other CI/CD tools via its DevOps for Data API.
Additional Questions
Q: How do you validate data lineage and traceability in a data warehouse?
A: By tracking data flow from source through ETL processes into the warehouse and reports.
How QuerySurge Helps: QuerySurge provides lineage-aware validation and audit-ready documentation.
Q: What’s the difference between incremental load and historical load testing?
A: Incremental load validates new or changed data, while historical load validates bulk past data loads.
How QuerySurge Helps: QuerySurge validates both approaches with automated regression and delta checks.
Q: How do you test data mart reports?
A: By validating that BI reports and dashboards align with underlying data warehouse data.
How QuerySurge Helps: QuerySurge BI Tester compares BI report values at the cell level against the warehouse.
Q: How do you test schema changes in a warehouse?
A: By updating and rerunning tests to validate new structures and relationships.
How QuerySurge Helps: QuerySurge’s reusable assets and metadata intelligence adapt tests quickly when schemas change.
Q: How do you ensure compliance and auditability in warehouse testing?
A: By logging all test runs, results, and user actions, and producing regulator-ready reports.
How QuerySurge Helps: QuerySurge provides comprehensive audit trails and presentation-quality compliance reports.
QuerySurge & Data Warehouse Testing
General / Introduction
Q: What is QuerySurge and how does it support Data Warehouse Testing?
A: QuerySurge is an automated data validation platform designed to test data pipelines and data warehouses, ensuring accuracy, completeness, and consistency.
How QuerySurge Helps: QuerySurge validates data from source to warehouse to BI, automating the entire process and catching defects early.
Q: Why should I use QuerySurge for testing a data warehouse instead of manual SQL?
A: Manual SQL testing is slow, error-prone, and covers only samples of data. QuerySurge validates 100% of your data at scale.
How QuerySurge Helps: QuerySurge automates queries, comparisons, and reporting, saving up to 80% of testing time.
Q: How is QuerySurge different from other data warehouse testing tools?
A: Most tools validate only limited transformations or require heavy scripting. QuerySurge was purpose-built for end-to-end data testing.
How QuerySurge Helps: QuerySurge offers broader connectivity (200+ sources), BI validation, DevOps integration, and AI-driven automation.
Q: Is QuerySurge suitable for both on-prem and cloud data warehouses?
A: Yes. It supports modern cloud platforms (Snowflake, BigQuery, Redshift, Databricks, and others) as well as traditional on-prem databases/data warehouses.
How QuerySurge Helps: QuerySurge connects seamlessly to cloud and on-prem environments, making hybrid testing simple.
Q: What industries typically use QuerySurge for data warehouse validation?
A: Financial services, insurance, healthcare, government, life sciences, media/telecom, energy, retail, and technology - industries where data quality is business-critical.
How QuerySurge Helps: QuerySurge provides audit-ready validation that meets industry compliance and regulatory requirements.
Process & Concepts
Q: What are the key stages in Data Warehouse Testing?
A: Requirement analysis, test planning, test case design, test execution, defect logging, and reporting.
How QuerySurge Helps: QuerySurge integrates into this lifecycle with automation, defect tracking, and dashboards for real-time reporting.
Q: How do you validate data completeness in a data warehouse?
A: By checking record counts between the sources and the target data warehouse and confirming no data loss.
How QuerySurge Helps: QuerySurge automates record count checks and complete row-level comparisons for completeness.
Q: How do you validate data transformations in a data warehouse?
A: By ensuring transformations match business logic and expected output values.
How QuerySurge Helps: QuerySurge AI auto-generates transformation tests from mapping documents, eliminating manual coding.
Q: What is metadata testing in a data warehouse?
A: It validates schema, data types, constraints, relationships, and indexes in the warehouse.
How QuerySurge Helps: QuerySurge validates metadata automatically, catching mismatches between schema definitions and data.
Q: How do you test business rules applied in a data warehouse?
A: By validating that calculated fields, aggregations, and filters match defined business logic.
How QuerySurge Helps: QuerySurge compares expected rule outputs against actual data, providing detailed mismatch reports.
Q: What is the difference between OLTP and OLAP testing?
A: OLTP testing focuses on transactional systems; OLAP testing focuses on analytical queries and warehouse performance.
How QuerySurge Helps: QuerySurge validates both transactional feeds into warehouses and OLAP query results for accuracy.
Test Design & Execution
Q: How do you design test cases for Data Warehouse Testing?
A: Define input conditions, expected outputs, and business rules for each stage of the data load.
How QuerySurge Helps: QuerySurge provides wizards, reusable assets, and AI-assisted test creation for rapid test design.
Q: What are critical test scenarios for a data warehouse?
A: Data completeness, data accuracy, incremental loads, historical loads, SCD validation, and performance testing.
How QuerySurge Helps: QuerySurge automates all these scenarios and maintains repeatable regression suites.
Q: How do you test slowly changing dimensions (SCDs)?
A: By validating that historical and current records are handled correctly per SCD Type (1, 2, or 3).
How QuerySurge Helps: QuerySurge validates SCD logic automatically, ensuring accurate historical tracking.
Q: How do you validate aggregated data in a warehouse?
A: By checking that measures like sums, averages, and counts are computed correctly.
How QuerySurge Helps: QuerySurge compares aggregated results against source data and business rule logic.
Q: How do you test historical data loads?
A: By validating that past data is loaded accurately and transformations remain consistent over time.
How QuerySurge Helps: QuerySurge automates regression testing to ensure historical data integrity after updates or schema changes.
Q: How do you handle data quality issues in warehouse testing?
A: By identifying duplicates, missing values, and invalid formats, then verifying correction processes.
How QuerySurge Helps: QuerySurge flags data quality defects with detailed reports, helping teams fix issues quickly.
Q: How do you validate queries in an OLAP system?
A: By ensuring query results match expected aggregations and business definitions.
How QuerySurge Helps: QuerySurge validates OLAP query outputs against the source data automatically.
Tools & Automation
Q: What tools are used for Data Warehouse Testing?
A: Manual SQL/Python scripts, or automated tools like QuerySurge, Informatica DVO, Tricentis, Talend, RightData, and iCEDQ.
How QuerySurge Helps: QuerySurge is the most comprehensive automation platform, purpose-built for ETL and warehouse validation.
Q: How does automation help in Data Warehouse Testing?
A: It reduces manual effort, improves coverage, speeds up cycles, and provides repeatable tests.
How QuerySurge Helps: QuerySurge can automate 100% of testing, including transformation validation and regression.
Q: Can CI/CD pipelines include Data Warehouse Testing?
A: Yes. Data validation can run as part of deployments to enforce quality gates.
How QuerySurge Helps: QuerySurge integrates with Jenkins, GitLab, Azure DevOps, and any other CI/CD tools via its DevOps for Data API.
Additional Questions
Q: How do you validate data lineage and traceability in a data warehouse?
A: By tracking data flow from source through ETL processes into the warehouse and reports.
How QuerySurge Helps: QuerySurge provides lineage-aware validation and audit-ready documentation.
Q: What’s the difference between incremental load and historical load testing?
A: Incremental load validates new or changed data, while historical load validates bulk past data loads.
How QuerySurge Helps: QuerySurge validates both approaches with automated regression and delta checks.
Q: How do you test data mart reports?
A: By validating that BI reports and dashboards align with underlying data warehouse data.
How QuerySurge Helps: QuerySurge BI Tester compares BI report values at the cell level against the warehouse.
Q: How do you test schema changes in a warehouse?
A: By updating and rerunning tests to validate new structures and relationships.
How QuerySurge Helps: QuerySurge’s reusable assets and metadata intelligence adapt tests quickly when schemas change.
Q: How do you ensure compliance and auditability in warehouse testing?
A: By logging all test runs, results, and user actions, and producing regulator-ready reports.
How QuerySurge Helps: QuerySurge provides comprehensive audit trails and presentation-quality compliance reports.
Capabilities & Features
Q: Can QuerySurge validate data from multiple sources into a single warehouse?
A: Yes. Data warehouses often consolidate data from multiple sources, which must be reconciled.
How QuerySurge Helps: QuerySurge connects to 200+ data sources and validates data consolidation end-to-end.
Q: How does QuerySurge test data completeness and accuracy in a warehouse?
A: By checking record counts, detecting missing/extra data, and validating field-level accuracy.
How QuerySurge Helps: QuerySurge automates completeness and accuracy tests at both row and cell level.
Q: Does QuerySurge support validation of Slowly Changing Dimensions (SCDs)?
A: Yes. SCDs require testing of historical and current records for accuracy.
How QuerySurge Helps: QuerySurge validates SCD Types 1, 2, and 3 automatically, ensuring history and current values are correct.
Q: Can QuerySurge test historical and incremental data loads?
A: Yes. Both types of loads need validation to avoid data gaps or duplication.
How QuerySurge Helps: QuerySurge validates deltas for incremental loads and regression tests on historical data.
Q: Does QuerySurge check metadata (schema, data types, constraints)?
A: Yes. Metadata testing ensures structure and relationships remain correct.
How QuerySurge Helps: QuerySurge validates schema, datatypes, and constraints, flagging mismatches instantly.
Q: Can QuerySurge validate aggregated and summarized data?
A: Yes. Aggregations like totals, averages, and counts must match business rules.
How QuerySurge Helps: QuerySurge compares aggregations against source data, providing detailed validation reports.
Q: Does QuerySurge provide end-to-end lineage validation?
A: Yes. Lineage ensures data is traceable from source through transformations into reports.
How QuerySurge Helps: QuerySurge delivers lineage-aware validation, tracking every hop in the pipeline.
Automation & Workflow
Q: How does QuerySurge automate data warehouse testing?
A: It automates queries, comparisons, defect logging, and reporting.
How QuerySurge Helps: QuerySurge AI generates tests from mapping documents, and reusable assets streamline automation.
Q: Can QuerySurge be integrated into CI/CD pipelines?
A: Yes. Data validation can run as part of continuous integration workflows.
How QuerySurge Helps: QuerySurge DevOps for Data enables automated, real-time validation of data throughout your pipeline, integrating with CI/CD tools via a comprehensive RESTful API, allowing organizations to detect and address data quality issues as they arise.
It supports features such as dynamic test creation and execution, schema change detection, and environment-aware testing, enabling DataOps to scale, accelerate releases, and reduce manual testing overhead.
Q: Does QuerySurge integrate with ETL/ELT platforms?
A: Yes. It be launched by any ETL/ELT platform to test data warehouses.
How QuerySurge Helps: QuerySurge validates data across every integration platform in your environment.
Q: Does QuerySurge integrate with defect tracking tools?
A: Yes. Integration allows seamless logging of issues into QA and DevOps workflows.
How QuerySurge Helps: QuerySurge integrates with Jira, Microsoft Azure DevOps, IBM Engineering Test Management (ETM), TestRail, OpenText ALM, GitHub, Gitlab, and other ALM tools for defect tracking through webhook templates and its robust RESTful API.
Q: Can QuerySurge support regression testing for data warehouse schema changes?
A: Yes. Schema changes can break pipelines if not tested.
How QuerySurge Helps: QuerySurge’s reusable test assets adapt quickly, ensuring regression coverage after changes.
Performance & Scalability
Q: How does QuerySurge handle testing of large data warehouses?
A: It scales for billions of rows with parallelized execution.
How QuerySurge Helps: QuerySurge validates huge datasets quickly while maintaining accuracy.
Q: Can QuerySurge validate performance of data warehouse queries and reports?
A: Yes. Performance validation ensures queries run within SLAs.
How QuerySurge Helps: QuerySurge dashboards show execution times, throughput, and bottlenecks.
Q: Does QuerySurge scale with cloud data warehouses?
A: Yes. Modern cloud platforms require elastic testing solutions, and QuerySurge fits this requirement.
How QuerySurge Helps: QuerySurge is cloud-ready and supports distributed, high-volume testing.
Compliance & Reporting
Q: Does QuerySurge provide audit trails?
A: Yes. Audit trails ensure traceability for every test.
How QuerySurge Helps: QuerySurge logs all test runs, results, and user actions with full traceability.
Q: Can QuerySurge generate compliance-ready reports?
A: Yes. Reports support SOX, HIPAA, GDPR, and other regulations.
How QuerySurge Helps: QuerySurge produces presentation-quality compliance and stakeholder reports.
Q: How does QuerySurge ensure data quality and traceability?
A: By validating every step of the data lifecycle and maintaining logs.
How QuerySurge Helps: QuerySurge provides lineage-aware validation and compliance dashboards.
AI & Advanced Features
Q: What role does QuerySurge AI play in data warehouse testing?
A: It reduces manual test creation by generating tests automatically.
How QuerySurge Helps: QuerySurge AI reads mapping documents and builds validation scripts instantly.
Q: Can QuerySurge AI generate test cases from mapping documents?
A: Yes. This saves a significant amount of time in test design.
How QuerySurge Helps: QuerySurge AI accelerates coverage and reduces human error in test creation.
Q: Does QuerySurge support no-code/low-code testing?
A: Yes. Not all testers need to code complex SQL. QuerySurge has many no-code/low-code and ease-of-use features.
How QuerySurge Helps: QuerySurge connection wizards, visual Query Wizard, and Querysurge AI provide ease-of-use features and no-code/low-code validation for broader adoption.
Competitive & ROI
Q: How does QuerySurge compare to Informatica DVO, RightData, DataGaps, or IceDQ?
A: These tools offer partial coverage or limited automation, while QuerySurge is comprehensive.
How QuerySurge Helps: QuerySurge delivers broader connectivity, better BI validation, and DevOps integration.
Q: Why use QuerySurge instead of a custom SQL/Python framework?
A: Custom frameworks are hard to build, maintain, and lack reporting.
How QuerySurge Helps: QuerySurge is enterprise-ready, with audit trails, dashboards, and CI/CD integration out of the box.
Q: What ROI does QuerySurge deliver in data warehouse projects?
A: Customers typically achieve ROI in months by reducing manual effort and preventing costly bad data.
How QuerySurge Helps: QuerySurge customers cut testing time by up to 80% and avoid millions in bad-data risks. ROI information can be found here>>
Big Data Testing FAQ
General / Introduction
Q: What is Big Data Testing?
A: Big Data Testing validates data ingestion, storage, processing, and reporting in large-scale environments to ensure accuracy, performance, and reliability.
How QuerySurge Helps: QuerySurge automates validation across Hadoop, Spark, cloud data lakes, and BI tools, ensuring data integrity in complex Big Data ecosystems.
Q: Why is Big Data Testing important?
A: Because massive datasets power analytics, AI, and decision-making. Errors at scale can lead to costly business risks.
How QuerySurge Helps: QuerySurge detects issues in billions of rows, ensuring Big Data remains analytics-ready and trustworthy.
Q: How is Big Data Testing different from ETL or Data Warehouse Testing?
A: Big Data Testing deals with distributed storage, semi/unstructured formats, and large-scale parallel processing, unlike traditional ETL or warehouse testing.
How QuerySurge Helps: QuerySurge validates structured, semi-structured (JSON, XML), and unstructured data in Big Data platforms with the same ease as traditional sources.
Q: What are the challenges in testing Big Data applications?
A: Handling high volumes, velocity (streaming), variety (unstructured data), and evolving schemas.
How QuerySurge Helps: QuerySurge scales with Big Data environments, adapts to schema changes, and supports batch and streaming validation.
Q: What types of testing are performed in Big Data environments?
A: Data ingestion testing, transformation validation, storage validation, scalability testing, fault-tolerance testing, and BI/reporting validation.
How QuerySurge Helps: QuerySurge automates all these test types and provides dashboards for both functional and performance validation.
Process & Concepts
Q: What are the key stages in Big Data Testing?
A: Data ingestion → storage validation → transformation processing → output validation → performance testing → reporting validation.
How QuerySurge Helps: QuerySurge validates data at each stage, from raw ingestion in Hadoop/S3 to final analytics in BI dashboards.
Q: How do you validate data ingestion in Big Data pipelines?
A: By ensuring incoming data from multiple sources is captured completely and accurately.
How QuerySurge Helps: QuerySurge automates completeness checks to verify no records are lost during ingestion.
Q: How do you test data storage in distributed systems?
A: By validating data integrity across HDFS, S3, or other distributed storage, including partitioning and replication.
How QuerySurge Helps: QuerySurge connects directly to storage layers and validates record accuracy across distributed nodes.
Q: How do you validate data transformations in Spark or Hive?
A: By comparing source data to transformed output based on business logic.
How QuerySurge Helps: QuerySurge AI auto-generates transformation validation tests from mapping docs, even for complex Spark/Hive logic.
Q: What’s the role of schema validation in Big Data Testing?
A: To ensure schema evolution, data types, and constraints don’t break ingestion or transformations.
How QuerySurge Helps: QuerySurge detects schema mismatches automatically and adapts test assets to evolving schemas.
Q: How do you test streaming data pipelines?
A: By validating message completeness, ordering, and transformation accuracy in tools like Kafka or Flink.
How QuerySurge Helps: QuerySurge validates both batch and streaming data pipelines, ensuring end-to-end reliability.
Test Design & Execution
Q: How do you design test cases for Big Data Testing?
A: Define test inputs, expected outputs, transformation logic, and performance thresholds.
How QuerySurge Helps: QuerySurge provides reusable test assets and AI-assisted design to accelerate test case creation.
Q: How do you validate data partitioning and sharding?
A: By checking data is distributed correctly across nodes without loss or duplication.
How QuerySurge Helps: QuerySurge validates partitioned/sharded data for completeness and consistency.
Q: How do you test data sampling versus full dataset validation?
A: Sampling covers subsets but risks missing errors, while full validation checks 100% of data.
How QuerySurge Helps: QuerySurge validates 100% of Big Data, ensuring no defects are missed.
Q: How do you test unstructured or semi-structured data?
A: By validating formats, parsing rules, and transformations for JSON, XML, logs, and text.
How QuerySurge Helps: QuerySurge natively supports JSON/XML parsing and validates semi/unstructured data against business rules.
Q: How do you validate aggregated and analytical queries in Big Data systems?
A: By checking that query results (sums, counts, averages) match expected outputs.
How QuerySurge Helps: QuerySurge compares BI/report outputs against Big Data stores at the cell level.
Q: How do you test fault tolerance and recovery in distributed systems?
A: By simulating node failures and verifying data processing resumes correctly.
How QuerySurge Helps: QuerySurge validates post-recovery data accuracy, ensuring no data corruption.
Q: How do you benchmark query performance in Big Data systems?
A: By measuring response times in engines like Hive, Spark SQL, or Presto.
How QuerySurge Helps: QuerySurge provides execution analytics that help optimize Big Data query performance.
Tools & Automation
Q: What tools are available for Big Data Testing?
A: QuerySurge, custom SQL/Python scripts, Hadoop validation tools, Spark testing frameworks, and Talend.
How QuerySurge Helps: QuerySurge is the only platform purpose-built for automated Big Data, ETL, warehouse, and BI validation.
Q: How do you automate Big Data Testing?
A: By using tools that connect to distributed data, validate transformations, and generate reports automatically.
How QuerySurge Helps: QuerySurge automates the entire cycle — from ingestion validation to BI report comparisons — with no-code/low-code options.
Q: What is the role of QuerySurge in Big Data Testing?
A: QuerySurge provides full lifecycle automation, from ingestion through reporting.
How QuerySurge Helps: QuerySurge validates every layer in Big Data pipelines, including Hadoop, Spark, Hive, Kafka, and BI dashboards.
Q: Can Big Data Testing be integrated into CI/CD pipelines?
A: Yes. Automated validation ensures only trusted data flows through deployments.
How QuerySurge Helps: QuerySurge integrates with Jenkins, GitLab, Azure DevOps, and hundreds of other platforms to enforce data quality gates in Big Data pipelines.
Additional Questions
Q: How do you validate data lineage and traceability in Big Data environments?
A: By tracking movement from source through ingestion, transformations, and reporting.
How QuerySurge Helps: QuerySurge provides lineage-aware validation and audit-ready reports for regulators.
Q: How do you ensure data quality across structured, semi-structured, and unstructured sources?
A: By validating completeness, accuracy, and transformation logic across all formats.
How QuerySurge Helps: QuerySurge tests relational, JSON, XML, log, and API data with the same automation framework.
Q: How do you test real-time analytics pipelines?
A: By validating streaming data integrity, latency, and output accuracy.
How QuerySurge Helps: QuerySurge supports both batch and streaming validation, ensuring analytics remain correct in real time.
Q: How do you handle schema evolution in Big Data Testing?
A: By validating new schema definitions, types, and transformations with updated test cases.
How QuerySurge Helps: QuerySurge adapts test assets to schema changes, reducing maintenance effort.
Q: What are common Big Data testing defects?
A: Missing/duplicate records, incorrect aggregations, schema mismatches, data loss during partitioning, and transformation errors.
How QuerySurge Helps: QuerySurge detects these defects instantly with automated mismatch and error reporting.
QuerySurge & Big Data Testing FAQ
General / Introduction
Q: What is QuerySurge and how does it support Big Data Testing?
A: QuerySurge is an automated data validation platform that ensures Big Data pipelines are accurate, complete, and analytics-ready. It validates ingestion, transformations, and outputs across large-scale distributed environments.
How QuerySurge Helps: QuerySurge connects to Hadoop, Spark, Hive, cloud data lakes, and BI tools to automate Big Data validation end-to-end.
Q: Why should I use QuerySurge for Big Data Testing instead of manual scripts?
A: Manual scripts are slow, error-prone, and limited to sample testing. QuerySurge validates 100% of your Big Data with automation and reporting.
How QuerySurge Helps: QuerySurge eliminates manual coding by automating queries, comparisons, and compliance-ready reports.
Q: How is QuerySurge different from other Big Data testing tools?
A: Many tools focus only on ETL jobs or specific frameworks. QuerySurge was purpose-built for cross-platform, full lifecycle data validation.
How QuerySurge Helps: QuerySurge covers ingestion, storage, transformations, and BI reports — with AI-assisted test creation and DevOps integration.
Q: Does QuerySurge work with both on-prem and cloud Big Data platforms?
A: Yes. QuerySurge supports both traditional Hadoop clusters and modern cloud platforms.
How QuerySurge Helps: QuerySurge validates Big Data across Snowflake, Databricks, AWS S3, Azure Data Lake, Google Cloud Storage, and more.
Q: What industries use QuerySurge for Big Data validation?
A: Financial services, healthcare, insurance, government, telecom, consumer goods/services, life sciences, energy/power/utilities, manufacturing, media/telecom, and technology companies use QuerySurge to ensure Big Data quality.
How QuerySurge Helps: QuerySurge provides compliance-ready validation that meets strict industry regulations.
Capabilities & Features
Q: Can QuerySurge validate data across Hadoop, Spark, Hive, and HDFS?
A: Yes. QuerySurge natively connects to these platforms for validation.
How QuerySurge Helps: QuerySurge automates testing across distributed Hadoop ecosystems, including Spark/Hive transformations.
Q: Does QuerySurge support testing of cloud data lakes like AWS S3 or Azure Data Lake?
A: Yes. Cloud data lakes are now standard in Big Data ecosystems and require validation.
How QuerySurge Helps: QuerySurge integrates with cloud storage to ensure data consistency and accuracy at scale.
Q: How does QuerySurge handle semi-structured data like JSON or XML?
A: By validating parsing, formats, and transformations of semi-structured data in Big Data pipelines.
How QuerySurge Helps: QuerySurge natively supports JSON and XML validation, ensuring semi-structured data is correct.
Q: Can QuerySurge validate streaming data as well as batch?
A: Yes. Both streaming and batch data pipelines need validation for accuracy and reliability.
How QuerySurge Helps: QuerySurge validates streaming pipelines (Kafka, Flink, etc.) alongside batch processes.
Q: Does QuerySurge support validation of analytical queries in Spark SQL or Hive?
A: Yes. Analytical queries must be validated to ensure correct aggregations and metrics.
How QuerySurge Helps: QuerySurge compares analytical outputs against expected results and source data.
Q: How does QuerySurge ensure data completeness and accuracy in Big Data pipelines?
A: By verifying that all records are ingested and transformed correctly, without loss or duplication.
How QuerySurge Helps: QuerySurge automates completeness, and accuracy checks across billions of rows.
Automation & Workflow
Q: How does QuerySurge automate Big Data Testing?
A: It automates source-to-target comparisons, transformation validation, defect logging, and reporting.
How QuerySurge Helps: QuerySurge AI generates tests from mapping documents, reducing manual effort.
Q: Can QuerySurge integrate with ETL/ELT frameworks like Databricks, Talend, or AWS Glue?
A: Yes. QuerySurge supports modern ELT/ETL platforms used in Big Data pipelines.
How QuerySurge Helps: QuerySurge validates data processed through Databricks, Talend, Glue, and more.
Q: Does QuerySurge integrate into CI/CD pipelines for Big Data validation?
A: Yes. Automated testing in CI/CD ensures only trusted data progresses.
How QuerySurge Helps: QuerySurge integrates with Jenkins, GitLab, and Azure DevOps, and many others for DevOps for Data workflows.
Q: Can QuerySurge connect to multiple Big Data sources and validate them together?
A: Yes. Big Data projects often consolidate multiple sources, requiring reconciliation.
How QuerySurge Helps: QuerySurge validates multi-source ingestion and end-to-end consolidation.
Q: How does QuerySurge handle schema evolution in Big Data projects?
A: By detecting changes in schemas and updating validation accordingly.
How QuerySurge Helps: QuerySurge adapts test assets to schema evolution, minimizing maintenance.
Performance & Scalability
Q: Can QuerySurge scale to validate billions of rows?
A: Yes. QuerySurge was designed for enterprise-scale Big Data validation.
How QuerySurge Helps: QuerySurge validates massive datasets quickly with parallel execution.
Q: How does QuerySurge test performance of Big Data jobs?
A: By tracking execution times, throughput, and SLA compliance.
How QuerySurge Helps: QuerySurge provides dashboards to analyze Big Data job performance.
Q: Does QuerySurge provide dashboards for Big Data performance metrics?
A: Yes. Performance metrics help optimize data pipelines.
How QuerySurge Helps: QuerySurge visualizes execution and bottleneck analysis for Big Data queries.
Q: How does QuerySurge validate fault tolerance and recovery scenarios?
A: By ensuring data accuracy after node failures or recovery events.
How QuerySurge Helps: QuerySurge validates post-recovery datasets to confirm no corruption occurred.
Compliance & Reporting
Q: Does QuerySurge provide audit trails for Big Data Testing?
A: Yes. Audit trails are essential for data governance and compliance.
How QuerySurge Helps: QuerySurge logs every test run, result, and user action for traceability.
Q: Can QuerySurge generate compliance-ready reports?
A: Yes. Reports are often needed for SOX, HIPAA, GDPR, and other regulations.
How QuerySurge Helps: QuerySurge produces audit-ready compliance reports for regulators and stakeholders.
Q: How does QuerySurge validate data lineage across Big Data pipelines?
A: By ensuring data is traceable from source ingestion through transformations into reports.
How QuerySurge Helps: QuerySurge provides lineage-aware validation and documentation.
AI & Advanced Features
Q: What role does QuerySurge AI play in Big Data Testing?
A: It reduces manual test creation by automatically generating validation tests.
How QuerySurge Helps: QuerySurge AI creates test cases from Big Data mappings, accelerating coverage.
Q: Can QuerySurge AI generate validation tests from Big Data mapping documents?
A: Yes. This accelerates test design and reduces human error.
How QuerySurge Helps: QuerySurge AI transforms mapping docs into automated tests instantly.
Q: Does QuerySurge support no-code/low-code test creation for Big Data?
A: Yes. This enables both technical and non-technical testers to validate pipelines.
How QuerySurge Helps: QuerySurge offers wizards, reusable assets, and AI features for no-code/low-code testing.
Competitive & ROI
Q: How does QuerySurge compare to custom Spark/Python validation frameworks?
A: Custom frameworks are costly, fragile, and lack enterprise reporting.
How QuerySurge Helps: QuerySurge provides scalability, dashboards, compliance, and integrations out of the box.
BI Report Testing
Your guide to ensuring data accuracy from data sources to BI dashboard .
General Understanding
Q: What is BI report testing?
A: BI testing validates the accuracy, completeness, and consistency of data in dashboards and reports. It ensures that what business users see in their BI tools matches the underlying data sources.
Q: Why is BI testing important?
A: Business decisions rely on accurate data. BI testing catches errors early, reduces risk, and helps organizations trust the insights they use to drive strategy.
Q: How is BI testing different from ETL testing?
A: ETL testing verifies data movement and transformation in pipelines. BI testing adds validation of report logic, filters, aggregations, and visualizations — the final layer that business users see.
Process & Best Practices
Q: How do you test BI reports effectively?
A: Automate as much as possible — validate data at the query level, compare report outputs to source data, and run regression tests after changes.
Q: How do you validate data transformations in BI tools?
A: Use a solution like QuerySurge to automatically generate tests that compare transformed results with expected outputs at every stage.
Q: How do you verify the visual layer (charts, KPIs, filters)?
A: Validate the underlying query results first, then confirm that filters, parameters, and aggregations in the report are producing the correct visual outcomes.
Challenges & Pain Points
Q: What are the biggest problems in BI report testing?
A: Manual testing is slow and error-prone, coverage is often limited, and changes to data or report logic can easily break dashboards without warning.
Q: How do you test reports across multiple sources?
A: Use a tool with multi-source connectivity. QuerySurge connects to 200+ data sources, allowing end-to-end validation from source to dashboard.
Q: How do you reduce testing time and cost?
A: Automate regression testing and integrate tests into CI/CD pipelines to catch issues early and save hours of manual effort.
Q: How do I test Power BI reports?
A: You test Power BI reports by comparing report data to the source data, verifying transformations (Power Query, DAX), checking visuals and formatting, and testing filters/drilldowns. For scale, use automation tools like QuerySurge BI Tester to run end-to-end validations, parameterized tests, and regression checks across reports.
Tools & Technology
Q: Which tools support automated BI report testing?
A: QuerySurge, Tricentis Data Integrity, and a few others offer dedicated BI testing solutions - but QuerySurge is purpose-built to validate report data down to the cell level.
Q: Can BI testing integrate with DevOps workflows?
A: Yes. QuerySurge offers 60+ API calls and CI/CD integrations, making it easy to trigger tests automatically as part of your release process.
Q: How do you scale testing across hundreds of reports?
A: Centralize and reuse test logic, schedule tests to run automatically, and leverage dashboards for reporting coverage and results.
Quality, Governance & Compliance
Q: How do you provide an audit trail for BI testing?
A: QuerySurge captures every test, result, and user action, providing a complete audit history for compliance and regulatory reporting.
Q: How do you document test results for stakeholders?
A: Use exportable dashboards and reports that summarize pass/fail rates, defects, and trends, ready to share with business users or auditors.
Q: How do you ensure trust in your analytics?
A: Validate 100% of critical data paths, set up automated alerts for anomalies, and embed “ready-for-analytics” checks in every pipeline.
QuerySurge BI Tester – Frequently Asked Questions
Everything you need to know about testing your BI reports with QuerySurge
Q: What is QuerySurge BI Tester?
A: BI Tester is QuerySurge’s dedicated module for validating BI reports from the visual layer down to the cell level, ensuring what users see matches the underlying data.
Q: How is BI testing different from regular QuerySurge tests?
A: While QuerySurge tests focus on data pipelines, BI Tester directly targets BI reports, validating KPIs, filters, and aggregations for complete accuracy.
Q: Why would I need BI Tester if I already test ETL?
A: ETL tests stop at the data store (data warehouse, data lake, files. database). BI Tester ensures that transformations inside the BI tool and report logic are also correct.
Capabilities & Coverage
Q: Does QuerySurge BI Tester validate at the visual layer?
A: Yes — BI Tester validates KPIs, charts, aggregations, and even drill-down data against source systems.
Q: Can it compare BI reports across environments?
A: Yes — easily run cross-environment comparisons (Dev/QA/Prod) to spot differences before go-live.
Q: Does QuerySurge BI Tester support filters and parameters?
A: Yes — you can pass parameters or slicers to reports and validate results dynamically.
Integrations & Connectors
Q: Which BI platforms does QuerySurge support?
A: Power BI, Tableau, Oracle Business Intelligence, Strategy (formerly MicroStrategy), IBM Cognos, SAP Business Objects are supported out-of-the-box.
Q: Can QuerySurge BI Tester work with cloud BI services?
A: Yes - BI Tester supports both on-premises and cloud-hosted BI deployments.
Q: Does QuerySurge BI Tester integrate with CI/CD?
A: Yes - use the DevOps for Data API to embed BI tests into your release pipelines and trigger them automatically.
Automation & Scalability
Q: How easy is it to automate QuerySurge BI tests?
A: Very easy - schedule tests, create regression suites, and get notified of failures automatically.
Q: Can I reuse ETL tests for BI validation?
A: Yes - extend your existing QuerySurge tests to validate end-to-end data paths, including BI outputs.
Q: How does QuerySurge BI Tester scale to hundreds of dashboards?
A: Centralized management, reusable test assets, and robust scheduling let you cover enterprise-scale BI environments.
Governance, Reporting & Compliance
Q: Does QuerySurge provide an audit trail?
A: Yes - every test execution, result, and user action is logged for full traceability.
Q: Can I export results?
A: Yes – QuerySurge BI generates presentation-ready reports for auditors, stakeholders, or regulatory bodies.
Q: How do I track dashboard coverage?
A: QuerySurge built-in dashboards show test coverage and defect trends across all BI assets.
ROI & Business Impact
Q: How much time does BI Tester save?
A: Customers report cutting BI validation effort by 50–80% compared to manual testing.
Q: What is the typical ROI?
A: Most enterprises achieve ROI within months through faster releases and fewer production defects.
Data Migration Testing FAQ
General / Introduction
Q: What is Data Migration Testing?
A: Data Migration Testing ensures that data is accurately moved from a legacy system to a new system — whether a database, application, or cloud platform — without loss, corruption, or inconsistencies.
How QuerySurge Helps: QuerySurge automates end-to-end validation across source and target, ensuring migrated data is complete, accurate, and trusted.
Q: Why is Data Migration Testing important?
A: Because migration projects are high-risk — even small errors can disrupt business operations, compliance, and analytics.
How QuerySurge Helps: QuerySurge validates 100% of migrated data, not just samples, catching issues before they impact users.
Q: How is Data Migration Testing different from ETL or Data Warehouse Testing?
A: ETL Testing validates data pipelines and transformations; Data Warehouse Testing validates analytics environments; Migration Testing focuses on moving existing data safely into a new environment.
How QuerySurge Helps: QuerySurge covers all three — ETL, warehouse, and migration — making it a versatile solution across projects.
Q: What are the challenges in Data Migration Testing?
A: Large volumes, schema changes, downtime constraints, data corruption risks, and compliance requirements.
How QuerySurge Helps: QuerySurge scales to billions of rows, adapts to schema changes, and generates audit-ready compliance reports.
Q: What types of data migration exist?
A: Storage migration, database migration, cloud migration, and application migration.
How QuerySurge Helps: QuerySurge validates migrations across all types, from on-prem to cloud, structured to semi-structured data.
Process & Concepts
Q: What are the key steps in Data Migration Testing?
A: Requirement analysis → data assessment → test planning → test execution → defect resolution → post-migration validation.
How QuerySurge Helps: QuerySurge automates execution, defect logging (via Jira, Azure DevOps), and final reporting.
Q: How do you validate data before, during, and after migration?
A: By profiling source data, running reconciliation tests during migration, and validating accuracy in the target system.
How QuerySurge Helps: QuerySurge validates data across all migration phases with reusable test assets.
Q: How do you test schema and structure changes during migration?
A: By verifying that schema mappings, datatypes, and relationships are applied correctly.
How QuerySurge Helps: QuerySurge automatically detects schema mismatches and validates new structures.
Q: What is reconciliation testing in a migration project?
A: It compares source and target data to ensure nothing is lost, duplicated, or corrupted.
How QuerySurge Helps: QuerySurge automates reconciliation, validating row counts, field-level data, and business rules.
Q: How do you test incremental vs. bulk data migrations?
A: Bulk migrations validate all data at once; incremental migrations validate deltas and ongoing changes.
How QuerySurge Helps: QuerySurge supports both modes, ensuring accuracy during phased or big-bang migrations.
Q: How do you ensure no data loss or corruption during migration?
A: By validating record counts, checksums, and cell-level data integrity.
How QuerySurge Helps: QuerySurge validates every row and column, preventing hidden losses or corruption.
Test Design & Execution
Q: How do you design test cases for Data Migration Testing?
A: Define input/output mappings, validation criteria, expected transformations, and rollback scenarios.
How QuerySurge Helps: QuerySurge AI auto-generates test cases from mapping documents, reducing manual scripting.
Q: What are the critical test scenarios in a migration project?
A: Data completeness, accuracy, schema validation, business rule validation, and rollback/recovery testing.
How QuerySurge Helps: QuerySurge automates all these scenarios with reusable libraries.
Q: How do you test data completeness and accuracy after migration?
A: By comparing row counts and validating field-level accuracy between source and target.
How QuerySurge Helps: QuerySurge automates row-to-row and cell-to-cell comparisons at scale.
Q: How do you test business rules and transformations applied during migration?
A: By validating that new business logic or transformations are correctly applied.
How QuerySurge Helps: QuerySurge validates transformations with AI-driven test creation and mismatch reporting.
Q: How do you validate application functionality after migration?
A: By running post-migration testing to ensure applications read and use data correctly.
How QuerySurge Helps: QuerySurge validates the data layer that applications depend on, ensuring functional integrity.
Q: How do you test rollback plans in case of migration failure?
A: By simulating rollbacks and ensuring data consistency is restored.
How QuerySurge Helps: QuerySurge validates rollback data against original sources for accuracy.
Performance & Scalability
Q: How do you test performance of large-scale migrations?
A: By measuring migration speed, system load, and SLA compliance.
How QuerySurge Helps: QuerySurge provides dashboards to track throughput and bottlenecks.
Q: How do you validate data integrity for billions of records?
A: By automating end-to-end validation, as manual testing isn’t feasible.
How QuerySurge Helps: QuerySurge scales to billions of rows with parallelized execution.
Q: How do you test downtime and cutover windows in migration projects?
A: By running dry runs and monitoring migration timing against SLAs.
How QuerySurge Helps: QuerySurge validates data immediately post-cutover, ensuring readiness.
Q: How do you validate migration scalability for future loads?
A: By testing with increasing data volumes to simulate growth.
How QuerySurge Helps: QuerySurge validates performance under large-scale and future data scenarios.
Tools & Automation
Q: What tools are available for Data Migration Testing?
A: Manual SQL, Python scripts, or automated tools like QuerySurge, Informatica DVO, Talend, tricentis, iCEDQ, RightData, DataGaps.
How QuerySurge Helps: QuerySurge is purpose-built for data migration validation, with automation, dashboards, and CI/CD integration.
Q: How do you automate Data Migration Testing?
A: By using tools that connect to sources and targets, validate data, and generate reports.
How QuerySurge Helps: QuerySurge automates every step, from test creation to execution, defect logging, and reporting.
Q: What is the role of QuerySurge, Informatica DVO, Talend, etc. in migration validation?
A: They provide varying levels of automation for testing. QuerySurge is focused on full lifecycle validation.
How QuerySurge Helps: QuerySurge outperforms alternatives with broader connectivity, BI validation, DevOps APIs, and AI test creation.
Q: Can CI/CD pipelines include migration validation steps?
A: Yes. Automated migration testing can be embedded in DevOps workflows.
How QuerySurge Helps: QuerySurge integrates with Jenkins, Azure DevOps, GitLab, GitHub, and more to enforce automated quality gates.
Additional Questions
Q: How do you validate data lineage and traceability during migration?
A: By ensuring every transformation and movement is tracked end-to-end.
How QuerySurge Helps: QuerySurge provides lineage-aware validation and compliance-ready documentation.
Q: How do you ensure compliance and auditability in migration projects?
A: By generating detailed logs and reports of validation results.
How QuerySurge Helps: QuerySurge provides audit-ready compliance reports for regulators and stakeholders.
Q: How do you handle schema evolution and application upgrades during migration?
A: By validating new schemas, datatypes, and application rules.
How QuerySurge Helps: QuerySurge adapts reusable test assets quickly to schema and application changes.
Q: What are common defects found in data migration testing?
A: Missing records, duplicates, data truncation, incorrect transformations, and schema mismatches.
How QuerySurge Helps: QuerySurge detects and reports these issues instantly with detailed error reporting.
Q: How do you measure the success of a data migration testing project?
A: By ensuring zero data loss, accurate transformations, minimal downtime, and compliance success.
How QuerySurge Helps: QuerySurge provides analytics and ROI dashboards to measure migration success.
QuerySurge & Data Migration Testing FAQ
General / Introduction
Q: What is QuerySurge, and how does it support Data Migration Testing?
A: QuerySurge is an automated data validation platform that ensures data is migrated accurately, completely, and without corruption during system, database, or cloud migrations.
How QuerySurge Helps: QuerySurge validates 100% of source-to-target data, catching issues before go-live.
Q: Why should I use QuerySurge for migration testing instead of manual SQL or scripts?
A: Manual methods are slow, error-prone, and often rely on sampling. QuerySurge automates testing and validates entire datasets at scale.
How QuerySurge Helps: QuerySurge reduces testing time by up to 80% while improving coverage and accuracy.
Q: How is QuerySurge different from other migration testing tools?
A: Many tools are limited in scope or require heavy scripting. QuerySurge is purpose-built for end-to-end migration validation.
How QuerySurge Helps: QuerySurge provides 200+ connectors, AI-driven test creation, and built-in compliance reporting.
Q: Can QuerySurge validate both on-prem to cloud and cloud-to-cloud migrations?
A: Yes. Modern migrations often move between hybrid or cloud platforms.
How QuerySurge Helps: QuerySurge supports migrations across databases, Hadoop/Spark, Snowflake, Redshift, BigQuery, Databricks, and many more data stores.
Q: What types of companies or industries use QuerySurge for migration projects?
A: Financial services, insurance, healthcare, government, energy/utilities, retail, life sciences, higher education, manufacturing, media/telecom, and technology firms.
How QuerySurge Helps: QuerySurge meets industry demands with audit trails and regulator-ready reports.
Capabilities & Features
Q: How does QuerySurge validate data completeness and accuracy after migration?
A: By comparing record counts and cell-level values between source and target data stores.
How QuerySurge Helps: QuerySurge automatically detects missing, duplicated, or corrupted records.
Q: Can QuerySurge handle schema changes during migration?
A: Yes. Schema evolution is a common occurrence in migrations and must be thoroughly tested.
How QuerySurge Helps: QuerySurge detects schema mismatches and adapts test assets for evolving structures.
Q: Does QuerySurge support incremental as well as bulk migrations?
A: Yes. Both types require validation to ensure consistency.
How QuerySurge Helps: QuerySurge validates bulk migrations and incremental deltas with the same automation framework.
Q: How does QuerySurge validate transformations applied during migration?
A: By ensuring transformed data aligns with mapping rules and business logic.
How QuerySurge Helps: QuerySurge AI generates transformation tests directly from mapping documents.
Q: Can QuerySurge reconcile billions of rows between source and target?
A: Yes. Manual testing cannot scale to this volume.
How QuerySurge Helps: QuerySurge validates massive datasets with parallelized execution at enterprise scale.
Q: Does QuerySurge validate application/BI reports after migration?
A: Yes. Reports must be validated to confirm they reflect migrated data correctly.
How QuerySurge Helps: QuerySurge BI Tester validates Microsoft Power BI, Tableau, IBM Cognos, Oracle Business Intelligence, Strategy (formerly MicroStrategy), and SAP Business Objects reports at the cell level.
Q: How does QuerySurge ensure no data loss or corruption occurs?
A: By validating row counts, checksums, and detailed cell-level values.
How QuerySurge Helps: QuerySurge provides complete reconciliation and detailed defect reporting.
Automation & Workflow
Q: How does QuerySurge automate Data Migration Testing?
A: By automating test creation, execution, comparisons, defect logging, and reporting.
How QuerySurge Helps: QuerySurge’s reusable assets and AI-assisted design eliminate repetitive manual effort.
Q: Can QuerySurge be integrated into CI/CD pipelines for migration validation?
A: Yes. Migrations can be validated continuously as part of deployment pipelines.
How QuerySurge Helps: QuerySurge integrates with Jenkins, GitLab, GitHub, Azure DevOps, and other solutions to enforce automated quality gates.
Q: Does QuerySurge integrate with ETL/ELT tools used in migrations?
A: Yes. Common platforms include Informatica, Talend, dbt, Databricks, and AWS Glue.
How QuerySurge Helps: QuerySurge validates the data flowing through all major ETL/ELT tools.
Q: How does QuerySurge integrate with defect tracking (Jira, Azure DevOps)?
A: By logging failed validations directly as defects.
How QuerySurge Helps: QuerySurge provides seamless integration with Jira, Azure DevOps, Open Text ALM (formerly HP), IBM Engineering Test Management (ETM), and other ALM platforms.
Q: Can QuerySurge provide pass/fail promotion gates during migration cutover?
A: Yes. Automated gates prevent bad data from going live.
How QuerySurge Helps: QuerySurge enforces promotion gates to block defective migrations before production.
Performance & Scalability
Q: Can QuerySurge scale to validate very large migrations?
A: Yes. Enterprises often migrate terabytes or petabytes of data.
How QuerySurge Helps: QuerySurge validates billions of rows with enterprise-grade scalability.
Q: How quickly can QuerySurge validate data during cutover windows?
A: Validation can run within the limited time available during cutovers.
How QuerySurge Helps: QuerySurge executes automated tests rapidly, fitting within migration downtime windows.
Q: Does QuerySurge provide performance dashboards for migration runs?
A: Yes. Dashboards track execution time, throughput, and bottlenecks.
How QuerySurge Helps: QuerySurge provides real-time visibility into migration performance.
Compliance & Reporting
Q: Does QuerySurge generate audit trails for migration projects?
A: Yes. Every test run, result, and user action is logged.
How QuerySurge Helps: QuerySurge creates comprehensive audit trails for regulators and auditors.
Q: Can QuerySurge produce compliance-ready reports?
A: Yes. Migration projects often fall under SOX, HIPAA, GDPR, and similar regulations.
How QuerySurge Helps: QuerySurge generates presentation-quality compliance reports.
Q: How does QuerySurge support data lineage and traceability across migration stages?
A: By validating data across every hop from source to target.
How QuerySurge Helps: QuerySurge provides lineage-aware validation and documentation for governance.
AI & Advanced Features
Q: What role does QuerySurge AI play in migration testing?
A: It reduces manual effort by auto-generating test cases.
How QuerySurge Helps: QuerySurge AI reads mapping documents and builds migration test cases instantly.
Q: Can QuerySurge AI generate test cases from migration mapping documents?
A: Yes. This speeds up test design significantly.
How QuerySurge Helps: QuerySurge AI accelerates migration validation with automated test creation.
Q: Does QuerySurge support no-code/low-code testing for migration teams?
A: Yes. This enables broader participation in migration testing.
How QuerySurge Helps: QuerySurge offers wizards and AI features for no-code/low-code test design.
Competitive & ROI
Q: How does QuerySurge compare to custom SQL/Python frameworks for migration testing?
A: Custom frameworks are expensive to build, hard to maintain, and lack enterprise features.
How QuerySurge Helps: QuerySurge provides an enterprise-ready platform with dashboards, defect integration, and compliance reporting.
Q: Why use QuerySurge instead of competitors like Informatica DVO, Talend, Tricentis, iCEDQ, RightData, or DataGaps?
A: Competitors often require more coding or cover fewer use cases.
How QuerySurge Helps: QuerySurge offers broader connectivity, BI validation, DevOps APIs, and AI-powered automation.
Q: What ROI can enterprises expect from using QuerySurge in migration projects?
A: Faster test cycles, lower migration risks, and reduced downtime — usually with ROI in months.
How QuerySurge Helps: QuerySurge cuts migration testing effort by up to 80% and prevents costly bad-data rollouts.
Q: How quickly can QuerySurge identify and block migration defects?
A: Almost instantly, during validation cycles.
How QuerySurge Helps: QuerySurge enforces automated pass/fail checks that block bad data before production.
DevOps for Data (DataOps) FAQ
General / Introduction
Q: What is DevOps for Data (DataOps)?
A: DataOps is the application of DevOps principles — automation, collaboration, continuous integration, and continuous delivery — to data pipelines. It ensures faster, more reliable, and higher-quality data delivery.
How QuerySurge Helps: QuerySurge provides automated data validation and quality gates within DataOps pipelines, ensuring only trusted data moves forward.
Q: How is DataOps different from DevOps for applications?
A: DevOps focuses on software delivery; DataOps focuses on the data lifecycle — ingestion, transformation, storage, and reporting.
How QuerySurge Helps: QuerySurge extends DevOps practices into the data world by embedding data quality checks into CI/CD workflows.
Q: Why is DataOps important for modern enterprises?
A: DataOps enables agile, automated, and reliable data delivery, critical for analytics, AI, and decision-making.
How QuerySurge Helps: QuerySurge ensures DataOps pipelines deliver clean, accurate data that executives and data scientists can trust.
Q: What problems does DataOps solve in data pipelines?
A: DataOps solves issues like data quality failures, schema changes, slow delivery, and lack of traceability.
How QuerySurge Helps: QuerySurge automates validation across sources, targets, and BI layers, eliminating bad-data bottlenecks.
Q: What are the benefits of adopting DataOps?
A: Faster delivery, improved data quality, reduced costs, stronger governance, and better collaboration across teams.
How QuerySurge Helps: QuerySurge provides audit-ready reports, defect integration, and quality dashboards to maximize DataOps ROI.
Concepts & Process
Q: What are the key principles of DataOps?
A: Automation, continuous testing, monitoring, collaboration, reproducibility, and governance.
How QuerySurge Helps: QuerySurge enforces these principles with automated testing, audit trails, and CI/CD integration.
Q: What are the stages in a DataOps lifecycle?
A: Data ingestion → transformation → testing → deployment → monitoring → feedback/iteration.
How QuerySurge Helps: QuerySurge validates data accuracy and completeness at every stage of the lifecycle.
Q: How does DataOps improve data quality and reliability?
A: By introducing automated validation and monitoring throughout the pipeline, ensuring defects are caught early.
How QuerySurge Helps: QuerySurge automatically compares source-to-target data and provides dashboards for continuous quality monitoring.
Q: What is the role of automation in DataOps?
A: Automation reduces manual effort, accelerates delivery, and ensures consistent validation.
How QuerySurge Helps: QuerySurge automates end-to-end testing, including transformations, regressions, and BI report validation.
Q: How does DataOps support CI/CD for data pipelines?
A: By embedding continuous testing and deployment of data flows, ensuring fast and safe releases.
How QuerySurge Helps: QuerySurge offers 60+ DevOps for Data APIs and Swagger documentation to integrate validation into CI/CD platforms like Jenkins, Azure DevOps, GitLab, and GitHub.
Q: How does DataOps relate to data governance and compliance?
A: DataOps enforces policies and ensures data accuracy for compliance requirements (SOX, HIPAA, GDPR).
How QuerySurge Helps: QuerySurge provides comprehensive audit trails and compliance-ready reports.
Tools & Technology
Q: What tools are commonly used for DataOps?
A: ETL/ELT platforms, orchestration tools (Airflow, Jenkins), monitoring tools, and testing solutions like QuerySurge.
How QuerySurge Helps: QuerySurge is the leading automated data testing solution for DataOps, purpose-built for ETL, warehouse, BI, and Big Data validation.
Q: How do DataOps tools integrate with ETL/ELT platforms?
A: They plug into platforms like Informatica, Talend, dbt, and Databricks to enforce data quality gates.
How QuerySurge Helps: QuerySurge connects directly to these platforms and validates data across transformations and loads.
Q: How do DataOps platforms fit into cloud environments?
A: They work with AWS, Azure, and GCP to orchestrate pipelines and enforce validation.
How QuerySurge Helps: QuerySurge supports 200+ data sources, including Snowflake, Redshift, BigQuery, and Azure Data Lake.
Q: What is the role of testing and monitoring in DataOps?
A: Continuous testing ensures data accuracy, while monitoring detects issues in real time.
How QuerySurge Helps: QuerySurge automates continuous validation and provides monitoring dashboards for proactive issue detection.
Q: How do you enforce data quality gates in a DataOps pipeline?
A: By embedding automated validation steps before data moves downstream.
How QuerySurge Helps: QuerySurge acts as a promotion gatekeeper, stopping bad data before it reaches analytics or AI systems.
Testing & Validation
Q: How do you automate data validation in a DataOps workflow?
A: By using testing tools that connect to sources, targets, and transformations to validate data continuously.
How QuerySurge Helps: QuerySurge automates validation with AI-generated tests, reusable assets, and API-driven execution.
Q: How does DataOps handle schema changes?
A: By detecting changes and updating validation rules quickly to prevent pipeline failures.
How QuerySurge Helps: QuerySurge adapts test assets to schema evolution, reducing maintenance effort.
Q: How do you test incremental vs. full loads in DataOps?
A: Incremental loads validate only new/changed data, while full loads validate entire datasets.
How QuerySurge Helps: QuerySurge validates both types of loads, ensuring deltas are correct and full reloads maintain consistency.
Q: How do you validate BI reports in a DataOps pipeline?
A: By checking that report values match underlying data at the cell level.
How QuerySurge Helps: QuerySurge BI Tester validates Power BI, Tableau, Cognos, Oracle Business Intelligence, Strategy (formerly MicroStrategy), and SP Business Objects reports directly against the data warehouse.
Q: How do you integrate defect tracking into DataOps?
A: By logging defects into tools like Jira or Azure DevOps for remediation.
How QuerySurge Helps: QuerySurge integrates directly with Jira, Azure DevOps, IBM Engineering Test Management (ETM), OpenText ALM (formerly HP), TestRail, and other ALM tools for seamless defect management.
Advanced / Strategy
Q: What are the biggest challenges in implementing DataOps?
A: Cultural adoption, automation gaps, tool integration, and governance.
How QuerySurge Helps: QuerySurge bridges gaps with automation, APIs, and reporting, accelerating adoption.
Q: How do you measure the success of DataOps initiatives?
A: KPIs include defect reduction, faster delivery cycles, reduced downtime, and improved data quality.
How QuerySurge Helps: QuerySurge provides analytics and dashboards to measure ROI and quality improvements.
Q: What are the best practices for scaling DataOps across an enterprise?
A: Standardize pipelines, automate validation, integrate tools, and enforce quality gates across teams.
How QuerySurge Helps: QuerySurge provides enterprise-wide automation, making scaling DataOps easier.
Q: How do DataOps and AI/ML pipelines work together?
A: DataOps ensures clean, accurate data feeding ML models, reducing bias and errors.
How QuerySurge Helps: QuerySurge validates AI/ML input data, preventing flawed model outputs.
Q: What is the difference between DataOps and MLOps?
A: DataOps manages the data lifecycle, while MLOps manages machine learning model lifecycles.
How QuerySurge Helps: QuerySurge supports DataOps by ensuring accurate pipelines that MLOps teams can trust.
QuerySurge & DevOps for Data FAQ
General / Introduction
Q: What is QuerySurge and how does it support DevOps for Data (DataOps)?
A: QuerySurge is an automated data testing platform that ensures data quality within DevOps for Data (DataOps) pipelines. It validates data at every stage of ingestion, transformation, and delivery.
How QuerySurge Helps: QuerySurge acts as an automated “data quality gate” inside your pipeline, catching defects before they impact analytics or AI.
Q: Why should I use QuerySurge DevOps for Data instead of relying only on ETL/ELT tools?
A: ETL/ELT tools move and transform data, but don’t guarantee quality. Testing is required to ensure accuracy and completeness.
How QuerySurge Helps: QuerySurge plugs into ETL/ELT workflows and validates 100% of the data automatically, reducing manual SQL effort.
Q: How is QuerySurge different from other testing tools in a DataOps pipeline?
A: Many tools only handle limited validation or require custom coding. QuerySurge is purpose-built for automated data testing across the full lifecycle.
How QuerySurge Helps: QuerySurge offers 200+ data connectors, AI-powered test creation, CI/CD integration, and BI validation in one solution.
Q: Can QuerySurge be used for both on-prem and cloud DataOps pipelines?
A: Yes. DataOps often spans hybrid environments, so testing needs to work everywhere.
How QuerySurge Helps: QuerySurge supports on-prem databases, Hadoop/Spark, and cloud warehouses like Snowflake, BigQuery, Redshift, and Databricks.
Q: What types of companies or industries use QuerySurge DevOps for Data?
A: Financial services, automotive, insurance, healthcare, government, life sciences, retail, energy/power/utilities, higher education, manufacturing, media/telecom, and technology firms all use QuerySurge to safeguard data pipelines.
How QuerySurge Helps: QuerySurge provides compliance-ready validation and audit trails that meet strict industry regulations.
Capabilities & Features
Q: How does QuerySurge act as a “data quality gate” in DataOps pipelines?
A: By automatically validating data before it moves downstream in the pipeline.
How QuerySurge Helps: QuerySurge enforces promotion gates that block bad data from reaching BI dashboards, data science models, or production systems.
Q: Can QuerySurge validate data automatically at each stage of the pipeline?
A: Yes. Data validation should occur at ingestion, transformation, and output layers.
How QuerySurge Helps: QuerySurge validates data hop by hop, from source to staging to target.
Q: Does QuerySurge support schema change detection in DataOps workflows?
A: Yes. Schema changes often cause pipeline breaks.
How QuerySurge Helps: QuerySurge detects schema mismatches and adapts tests quickly to evolving structures.
Q: Can QuerySurge validate both batch and streaming data pipelines?
A: Yes. Both data movement methods require validation.
How QuerySurge Helps: QuerySurge supports validation for batch ETL as well as real-time streaming frameworks (Kafka, Flink, etc.).
Q: Does QuerySurge support BI report validation in a DataOps environment?
A: Yes. DataOps doesn’t end with the data warehouse — reports must also be validated.
How QuerySurge Helps: QuerySurge BI Tester validates Power BI, Tableau, Strategy (formerly MicroStrategy), Oracle Business Intelligence, SAP Business Objects, and IBM Cognos reports at the cell level against underlying data.
Q: How does QuerySurge ensure data lineage and traceability in automated pipelines?
A: By validating data across every hop and logging results.
How QuerySurge Helps: QuerySurge provides lineage-aware validation and audit-ready reports for governance.
Automation & Workflow
Q: How does QuerySurge integrate with CI/CD tools like Jenkins, Azure DevOps, or GitLab?
A: Via APIs and webhooks that embed validation directly into CI/CD workflows.
How QuerySurge Helps: QuerySurge offers 60+ DevOps for Data APIs and Swagger documentation for seamless integration with leading CI/CD platforms.
Q: Can QuerySurge be triggered automatically as part of pipeline deployments?
A: Yes. Validation should run as soon as new data or transformations are deployed.
How QuerySurge Helps: QuerySurge executes tests automatically during deployments and returns pass/fail results to the pipeline.
Q: Does QuerySurge integrate with ETL/ELT platforms like Informatica, Talend, dbt, or Databricks?
A: Yes. QuerySurge works alongside modern ETL/ELT tools to validate their outputs.
How QuerySurge Helps: QuerySurge validates transformations and loads from Informatica, Talend, Databricks, dbt, AWS Glue, and more.
Q: How does QuerySurge integrate with defect tracking tools like Jira or Azure DevOps?
A: By automatically logging validation failures as defects.
How QuerySurge Helps: QuerySurge pushes failed test results into Jira, Azure DevOps, TestRail, Open Text ALM (formerly HP), IBM Engineering Test Management (ETM), and other ALM tools for faster resolution.
Q: Can QuerySurge provide automated pass/fail promotion gates in DataOps pipelines?
A: Yes. These gates stop bad data from moving downstream.
How QuerySurge Helps: QuerySurge enforces promotion gates so only high-quality data progresses through your pipeline.
Performance & Scalability
Q: Can QuerySurge scale to validate billions of rows in automated pipelines?
A: Yes. Enterprise pipelines often require validation on a massive scale.
How QuerySurge Helps: QuerySurge validates billions of rows with parallel execution and enterprise performance.
Q: How quickly can QuerySurge execute tests in a CI/CD pipeline?
A: Tests run within deployment windows, ensuring no delays.
How QuerySurge Helps: QuerySurge optimizes execution for speed while validating 100% of data.
Compliance & Reporting
Q: Does QuerySurge generate audit trails for DataOps processes?
A: Yes. Every test run, result, and action should be logged.
How QuerySurge Helps: QuerySurge creates detailed audit trails to meet compliance and governance requirements.
Q: Can QuerySurge produce compliance-ready reports for regulated industries?
A: Yes. Reports support regulators like SOX, HIPAA, and GDPR.
How QuerySurge Helps: QuerySurge generates presentation-quality compliance reports for auditors and stakeholders.
Q: How does QuerySurge help enforce governance policies in a DataOps pipeline?
A: By embedding validation, monitoring, and reporting across pipelines.
How QuerySurge Helps: QuerySurge enforces governance by ensuring only policy-compliant data flows through.
AI & Advanced Features
Q: What role does QuerySurge AI play in automating DataOps testing?
A: It reduces manual scripting by generating tests automatically.
How QuerySurge Helps: QuerySurge AI creates transformational test cases from mapping documents, accelerating adoption.
Q: Can QuerySurge AI generate test cases from pipeline mapping documents?
A: Yes. This dramatically reduces setup effort.
How QuerySurge Helps: QuerySurge AI auto-builds validation logic from mappings, saving time and increasing coverage.
Q: Does QuerySurge support no-code/low-code testing for DataOps teams?
A: Yes. This allows both technical and non-technical users to contribute to validation.
How QuerySurge Helps: QuerySurge provides connection wizards, a visual Query Wizard, reusable assets, and QuerySurge AI for ease-of-use and no-code/low-code validation.
Competitive & ROI
Q: How does QuerySurge compare to open-source frameworks or homegrown solutions?
A: Open-source requires custom code and lacks enterprise features like reporting and CI/CD integration.
How QuerySurge Helps: QuerySurge delivers an enterprise-ready, scalable solution with full automation and audit capabilities.
Q: Why use QuerySurge instead of scripting tests directly in ETL or orchestration tools?
A: Embedded tests are limited, hard to scale, and lack reporting.
How QuerySurge Helps: QuerySurge centralizes validation, provides dashboards, and integrates across all platforms.
Q: What ROI can be expected from using QuerySurge in DataOps pipelines?
A: Enterprises typically see ROI within months by reducing manual effort and preventing bad data.
How QuerySurge Helps: QuerySurge reduces testing time by up to 80% and avoids multi-million-dollar data quality risks.
Q: How quickly can QuerySurge identify and block bad data in a DevOps pipeline?
A: Almost instantly — during the deployment process itself.
How QuerySurge Helps: QuerySurge enforces real-time data quality gates, blocking bad data before it reaches production.
QuerySurge + ERP Data Testing FAQ
General / Introduction
Q: What is ERP Data Testing?
A: ERP Data Testing validates that data within an ERP system — such as SAP, Oracle, Microsoft Dynamics, or Workday — is accurate, complete, and consistent across modules and integrated systems.
How QuerySurge Helps: QuerySurge automates ERP data validation across financials, HR, supply chain, and other modules, ensuring data integrity at scale.
Q: Why is ERP Data Testing important?
A: ERP systems run mission-critical business processes. Bad data can lead to financial errors, compliance violations, and operational disruptions.
How QuerySurge Helps: QuerySurge ensures ERP data is reliable, reducing risks in finance, HR, and supply chain operations.
Q: How is ERP Data Testing different from ETL or Data Warehouse Testing?
A: ERP testing validates transactional and master data within ERP modules and integrations, while ETL/Warehouse testing focuses on data movement into analytics platforms.
How QuerySurge Helps: QuerySurge covers both ERP data validation and downstream ETL/BI testing, delivering end-to-end coverage.
Q: What are the challenges in ERP Data Testing?
A: Complex integrations, large volumes of master and transactional data, frequent upgrades, and compliance requirements.
How QuerySurge Helps: QuerySurge scales to billions of records, adapts to ERP upgrades, and provides compliance-ready reporting.
Q: What types of ERP systems require data testing?
A: SAP, Oracle E-Business Suite, Microsoft Dynamics, Workday, NetSuite, and other enterprise ERP platforms.
How QuerySurge Helps: QuerySurge connects to all major ERP databases and validates ERP integrations with cloud or on-prem systems.
Process & Concepts
Q: What are the key stages in ERP Data Testing?
A: Data migration validation, integration testing, transactional data validation, master data testing, and reporting validation.
How QuerySurge Helps: QuerySurge validates ERP data end-to-end — from migration to integrations to analytics.
Q: How do you validate data migration into an ERP system?
A: By ensuring all legacy data is accurately loaded into ERP without loss or corruption.
How QuerySurge Helps: QuerySurge automates reconciliation between legacy systems and ERP targets.
Q: How do you test data integration between ERP and other systems?
A: By verifying the accuracy and completeness of data exchanged between ERP, CRM, SCM, HR, and finance systems.
How QuerySurge Helps: QuerySurge validates ERP integrations across multiple platforms and APIs.
Q: How do you ensure master data accuracy in ERP systems?
A: By validating customer, vendor, product, and employee master records for consistency and uniqueness.
How QuerySurge Helps: QuerySurge automates master data validation, detecting duplicates and mismatches.
Q: How do you test transactional data in ERP modules?
A: By validating financial transactions, supply chain updates, payroll runs, and other module-specific activities.
How QuerySurge Helps: QuerySurge tests transactional records in real-time, ensuring business-critical accuracy.
Q: How do you validate ERP data transformations and business rules?
A: By checking that ERP logic (tax rules, currency conversions, HR policies) is applied correctly.
How QuerySurge Helps: QuerySurge validates ERP transformations at the cell level with detailed mismatch reporting.
Test Design & Execution
Q: How do you design test cases for ERP Data Testing?
A: By defining validation rules for master data, transactional data, integrations, and reporting outputs.
How QuerySurge Helps: QuerySurge AI generates ERP test cases automatically from mapping and business rule documents.
Q: What are the critical test scenarios in ERP systems?
A: Data migration, master data validation, transactional data checks, integration testing, upgrade validation, and reporting.
How QuerySurge Helps: QuerySurge automates these scenarios, enabling faster regression cycles.
Q: How do you test ERP reporting and analytics outputs?
A: By ensuring BI or ERP-native reports match the underlying transactional and master data.
How QuerySurge Helps: QuerySurge BI Tester validates ERP reports from SAP, Oracle, Power BI, Tableau, and more.
Q. How do you validate data security and access controls in ERP systems?
A: By testing that users only see and update data appropriate to their roles.
How QuerySurge Helps: QuerySurge validates restricted data scenarios, ensuring compliance with security policies.
Q: How do you test ERP upgrades or version migrations?
A: By revalidating data before and after upgrades to ensure no corruption or logic errors occur.
How QuerySurge Helps: QuerySurge automates regression testing during ERP version upgrades.
Q: How do you handle duplicate or missing data in ERP systems?
A: By running quality checks for uniqueness, completeness, and referential integrity.
How QuerySurge Helps: QuerySurge flags duplicates and gaps with automated exception reporting.
Performance & Scalability
Q: How do you validate ERP batch jobs and scheduled processes?
A: By testing completeness and correctness of recurring jobs like payroll, GL postings, or reconciliations.
How QuerySurge Helps: QuerySurge integrates into batch job workflows to validate results automatically.
Q: How do you test scalability of ERP data integrations?
A: By validating data accuracy and performance under heavy integration loads.
How QuerySurge Helps: QuerySurge tests ERP integrations across systems with large data flows.
Tools & Automation
Q: What tools are available for ERP Data Testing?
A: Manual SQL, custom scripts, ERP-native test tools, and automated solutions like QuerySurge, Tricentis, and Worksoft.
How QuerySurge Helps: QuerySurge is purpose-built for ERP data validation, combining automation, dashboards, and CI/CD integration.
Q: How do you automate ERP Data Testing?
A: By using tools that validate data flows, transformations, and reporting outputs automatically.
How QuerySurge Helps: QuerySurge automates ERP testing end-to-end, reducing manual effort and increasing coverage.
Q: How does QuerySurge fit into ERP testing alongside other tools?
A: QuerySurge focuses on validating data, while other ERP test tools often focus on UI or functional testing.
How QuerySurge Helps: QuerySurge complements ERP automation suites by covering the data layer that UI tools miss.
Q: Can ERP Data Testing be integrated into CI/CD or DevOps pipelines?
A: Yes. Data validation can be triggered as part of ERP deployment cycles.
How QuerySurge Helps: QuerySurge integrates with Jenkins, Azure DevOps, and GitLab to enforce quality gates in ERP pipelines.
Additional Questions
Q: How do you validate data lineage and traceability in ERP systems?
A: By ensuring ERP data flows are fully traceable from source systems through modules and reporting.
How QuerySurge Helps: QuerySurge provides lineage-aware validation and audit-ready documentation.
Q: How do you ensure compliance and auditability in ERP Data Testing?
A: By logging test results and generating regulator-ready reports.
How QuerySurge Helps: QuerySurge creates audit trails and compliance reports for SOX, HIPAA, GDPR, and other standards.
Q: What are common ERP data defects?
A: Missing records, duplicates, incorrect master data, transformation errors, and reporting mismatches.
How QuerySurge Helps: QuerySurge detects these defects instantly with automated mismatch reporting.
Q: How do you measure data quality in ERP systems?
A: By monitoring accuracy, completeness, timeliness, and consistency across modules.
How QuerySurge Helps: QuerySurge provides dashboards and analytics to track ERP data quality KPIs.
Q: How do you test ERP integrations with cloud applications?
A: By validating data exchanges between ERP and SaaS platforms like Salesforce, Workday, or ServiceNow.
How QuerySurge Helps: QuerySurge supports ERP-to-cloud integrations with 200+ connectors.
Q: What are the KPIs for ERP Data Testing success?
A: Defect reduction, migration accuracy, faster release cycles, compliance success, and improved data trust.
How QuerySurge Helps: QuerySurge delivers measurable ROI through improved coverage, automation, and faster defect resolution.
QuerySurge & ERP Data Testing FAQ
General / Introduction
Q: What is QuerySurge and how does it support ERP Data Testing?
A: QuerySurge is an automated data validation platform that ensures ERP data — master and transactional — is accurate, consistent, and migration-ready.
How QuerySurge Helps: QuerySurge connects directly to ERP systems like SAP, Oracle, Microsoft Dynamics, and Workday to validate ERP data across modules and integrations.
Q: Why should I use QuerySurge for ERP testing instead of ERP-native validation or manual SQL?
A: ERP-native tools and manual SQL often rely on sampling and are labor-intensive. They rarely provide audit-ready reporting.
How QuerySurge Helps: QuerySurge automates 100% validation with dashboards, defect integration, and compliance-ready reports.
Q: How is QuerySurge different from other ERP testing tools (Tricentis, Worksoft, vendor tools)?
A: Most ERP testing tools focus on UI or functional workflows. QuerySurge specializes in the data layer.
How QuerySurge Helps: QuerySurge complements ERP functional test tools by validating the accuracy and completeness of underlying data.
Q: Can QuerySurge connect directly to ERP systems like SAP, Oracle, Dynamics, or Workday?
A: Yes. QuerySurge has connectors for major ERP platforms and their underlying databases.
How QuerySurge Helps: QuerySurge supports 200+ technologies, enabling ERP data validation across hybrid ecosystems.
Q: What types of companies or industries use QuerySurge for ERP validation?
A: Finance, insurance, healthcare, government, retail, energy, manufacturing, and technology firms.
How QuerySurge Helps: QuerySurge ensures ERP data integrity in industries where compliance, financial accuracy, and supply chain reliability are mission-critical.
Capabilities & Features
Q: How does QuerySurge validate ERP master data (customers, vendors, products, employees)?
A: By verifying consistency, uniqueness, and correctness across master data records.
How QuerySurge Helps: QuerySurge detects duplicates, missing values, and mismatched records automatically.
Q: Can QuerySurge test transactional data in ERP modules (finance, HR, supply chain, payroll)?
A: Yes. Transactional data drives ERP processes and must be accurate.
How QuerySurge Helps: QuerySurge validates financial postings, HR payroll runs, supply chain updates, and other transactions at the record level.
Q: Does QuerySurge support ERP reporting validation?
A: Yes. ERP reports (SAP BW, Oracle BI, Power BI, Tableau) must match the underlying transactional data.
How QuerySurge Helps: QuerySurge BI Tester compares ERP report values down to the cell level against source systems.
Q: How does QuerySurge ensure data accuracy when migrating legacy data into ERP systems?
A: By reconciling source and target data during migration projects.
How QuerySurge Helps: QuerySurge automates reconciliation for legacy-to-ERP migrations, ensuring no loss or corruption.
Q: Can QuerySurge validate ERP data integrations with other systems (CRM, SCM, HR, cloud apps)?
A: Yes. ERP systems rarely operate in isolation.
How QuerySurge Helps: QuerySurge validates ERP integrations across Salesforce, ServiceNow, Workday, and other platforms.
Q: How does QuerySurge handle schema or configuration changes in ERP systems?
A: Schema and config changes can break ERP pipelines if untested.
How QuerySurge Helps: QuerySurge detects schema mismatches and adapts reusable test assets for ERP upgrades.
Q: Can QuerySurge reconcile large volumes of ERP data across modules?
A: Yes. ERP systems process millions of records daily.
How QuerySurge Helps: QuerySurge scales to billions of rows, reconciling ERP data at enterprise scale.
Automation & Workflow
Q: How does QuerySurge automate ERP Data Testing?
A: By automating test creation, execution, comparisons, defect logging, and reporting.
How QuerySurge Helps: QuerySurge AI generates ERP validation tests automatically from mapping documents.
Q: Can QuerySurge be integrated into ERP deployment or upgrade cycles?
A: Yes. Data validation is critical during ERP rollouts and upgrades.
How QuerySurge Helps: QuerySurge validates ERP data before, during, and after deployment to ensure smooth cutovers.
Q: Does QuerySurge integrate with CI/CD pipelines for ERP projects?
A: Yes. ERP testing can be embedded in DevOps workflows.
How QuerySurge Helps: QuerySurge integrates with Jenkins, GitLab, and Azure DevOps to enforce ERP data quality gates.
Q: Can QuerySurge integrate with defect tracking tools like Jira or Azure DevOps?
A: Yes. Failed validations should flow into issue management systems.
How QuerySurge Helps: QuerySurge automatically logs ERP data defects into Jira, Azure DevOps, GitHub, GitLab, TestRail, Open Text ALM (formerly HP), IBM Engineering Test Management (ETM), and other ALM tools.
Q: How does QuerySurge provide automated promotion gates in ERP data workflows?
A: By blocking bad data from moving forward during ERP rollouts.
How QuerySurge Helps: QuerySurge enforces promotion gates, so only clean ERP data reaches production.
Performance & Scalability
Q: Can QuerySurge scale to validate millions of ERP records?
A: Yes. ERP systems generate massive datasets.
How QuerySurge Helps: QuerySurge validates ERP datasets at scale with parallelized execution.
Q: How quickly can QuerySurge validate ERP data during cutover or upgrade windows?
A: Validation must fit into tight deployment windows.
How QuerySurge Helps: QuerySurge executes tests rapidly, ensuring ERP cutovers remain on schedule.
Q: Does QuerySurge provide dashboards for ERP data testing?
A: Yes. Dashboards help teams track results and performance.
How QuerySurge Helps: QuerySurge dashboards provide real-time ERP test results, defect trends, and ROI metrics.
Compliance & Reporting
Q: Does QuerySurge generate audit trails for ERP testing activities?
A: Yes. Auditability is essential for ERP systems.
How QuerySurge Helps: QuerySurge logs every ERP test run, result, and user action.
Q: Can QuerySurge provide compliance-ready reports for ERP systems?
A: Yes. ERP data often falls under SOX, HIPAA, GDPR, and other regulations.
How QuerySurge Helps: QuerySurge produces regulator-ready compliance reports.
Q: How does QuerySurge ensure data lineage and traceability across ERP modules?
A: By validating flows across finance, HR, supply chain, and reporting modules.
How QuerySurge Helps: QuerySurge provides lineage-aware validation and documentation across ERP ecosystems.
AI & Advanced Features
Q: What role does QuerySurge AI play in ERP Data Testing?
A: It reduces manual scripting and accelerates coverage.
How QuerySurge Helps: QuerySurge AI builds ERP data validation tests directly from business rules and mappings.
Q: Can QuerySurge AI generate test cases from ERP mapping or configuration documents?
A: Yes. This speeds up ERP test design significantly.
How QuerySurge Helps: QuerySurge AI transforms ERP documents into reusable automated tests.
Q: Does QuerySurge support no-code/low-code ERP test creation for business users?
A: Yes. This allows non-technical ERP teams to contribute to validation.
How QuerySurge Helps: QuerySurge provides wizards and low-code features for ERP test creation.
Competitive & ROI
Q: How does QuerySurge compare to ERP vendor tools or other ERP testing platforms?
A: Vendor tools often lack end-to-end data validation or focus only on UI testing.
How QuerySurge Helps: QuerySurge provides broader ERP data coverage, BI validation, and DevOps integration.
Q: Why use QuerySurge instead of custom SQL/Python validation scripts for ERP testing?
A: Custom scripts are hard to scale, maintain, and report on.
How QuerySurge Helps: QuerySurge delivers an enterprise-ready solution with automation, dashboards, and audit trails.
Q: What ROI can enterprises expect from using QuerySurge for ERP Data Testing?
A: Faster test cycles, reduced risks, and better compliance — usually achieving ROI in months.
How QuerySurge Helps: QuerySurge reduces ERP testing effort by up to 80% and prevents costly ERP data errors.
Q: How quickly can QuerySurge identify and resolve ERP data quality issues?
A: Almost instantly, during validation cycles.
How QuerySurge Helps: QuerySurge enforces pass/fail gates and provides detailed error reporting to accelerate resolution.
Flat File Testing FAQ
General / Introductory
Q: What is flat file data validation?
A: Flat file validation ensures that data stored in files like CSV, JSON, Parquet, Excel, or fixed-width/delimited formats is complete, accurate, and formatted correctly before being processed or loaded into target systems.
How QuerySurge Helps: QuerySurge connects directly to flat files and validates them against relational databases, cloud data warehouses, and BI systems to ensure consistency.
Q: Why is validating flat files important in ETL and data pipelines?
A: Flat files often act as staging or transfer formats in ETL pipelines. Errors in these files can cause downstream mismatches, data loss, or compliance failures.
How QuerySurge Helps: QuerySurge automates validation at the file-to-database stage, catching issues before data moves downstream.
Q: What are the common types of flat files used in enterprises?
A: Fixed-width, delimited (CSV/TSV), JSON, Parquet (columnar), and Excel (XLS/XLSX) are the most common flat file formats in data pipelines.
How QuerySurge Helps: QuerySurge supports all major flat file types out of the box, enabling end-to-end validation.
Q: What are the challenges of validating flat file data compared to databases?
A: Challenges include inconsistent delimiters, schema drift, nested JSON, Excel formatting quirks, and large file sizes.
How QuerySurge Helps: QuerySurge normalizes schema, validates nested data, and scales to handle very large files.
Process & Concepts
Q: How do you validate the structure and format of flat files?
A: By checking column order, data types, delimiters, and encoding against expected schema definitions.
How QuerySurge Helps: QuerySurge enforces schema validation rules on flat files before processing.
Q: How do you validate schema definitions for flat files?
A: By comparing file headers (or predefined schema) with database table definitions or metadata repositories.
How QuerySurge Helps: QuerySurge validates schema mappings automatically, alerting when column names, orders, or types don’t match.
Q: How do you handle header/footer rows in flat files during validation?
A: By excluding metadata rows and validating only the data content.
How QuerySurge Helps: QuerySurge supports flexible parsing to include/exclude headers, footers, or control totals in validation.
Q: How do you validate JSON and nested data structures?
A: By parsing JSON hierarchies, validating keys, and comparing nested values to expected outputs.
How QuerySurge Helps: QuerySurge validates JSON objects and arrays against structured targets.
Q: How do you validate Parquet files used in big data pipelines?
A: By validating schema definitions and row-level values across columnar storage.
How QuerySurge Helps: QuerySurge natively validates Parquet files against SQL databases and cloud data warehouses.
Q. How do you validate Excel files with multiple sheets and formats?
A: By validating sheet-by-sheet, handling merged cells, and mapping data ranges correctly.
How QuerySurge Helps: QuerySurge validates Excel data across sheets and formats, ensuring completeness and consistency.
Q. How do you ensure completeness when loading flat files into databases or lakes?
A: By checking row counts, primary keys, and field-level data before and after load.
How QuerySurge Helps: QuerySurge reconciles file row counts and field values against target tables automatically.
Q: What methods exist for handling nulls, blanks, or special characters in flat files?
A: By defining validation rules to catch invalid or unexpected representations of nulls and special characters.Test Design and Execution
How QuerySurge Helps: QuerySurge applies data quality rules to detect nulls, blanks, and invalid encodings.
Test Design & Execution
Q: How do you design test cases for validating flat file data?
A: Define tests for schema checks, row counts, field-level accuracy, duplicate detection, and edge cases.
How QuerySurge Helps: QuerySurge allows reusable test templates for common flat file validation scenarios.
Q: What scenarios should be tested for fixed-width vs. delimited files?
A: Fixed-width: field positions and padding; Delimited: delimiter consistency, escaping, and missing columns.
How QuerySurge Helps: QuerySurge parses both formats accurately and validates them against target systems.
Q: How do you validate data integrity between flat files and target databases?
A: By reconciling row counts, keys, and cell-level values between source files and loaded tables.
How QuerySurge Helps: QuerySurge automates reconciliation with detailed mismatch reporting.
Q: How do you handle duplicate or missing records in flat files?
A: By applying uniqueness rules and completeness checks before processing.
How QuerySurge Helps: QuerySurge detects duplicates, missing rows, or gaps in data loads.
Q: How do you validate incremental vs. full loads from flat files?
A: Incremental loads validate deltas; full loads validate complete data replacement.
How QuerySurge Helps: QuerySurge supports both incremental and full load validation workflows.
Q: How do you test performance and scalability for large flat files?
A: By validating parallel loads, partitioning large files, and measuring throughput.
How QuerySurge Helps: QuerySurge executes large-scale file validations in parallel for efficiency.
Automation & Tools
Q: What tools support automated validation of flat files?
A: Purpose-built platforms (QuerySurge, RightData, DataGaps, Talend) and open-source frameworks.
How QuerySurge Helps: QuerySurge provides prebuilt connectors for all flat file types with enterprise automation.
Q: How do you automate flat file-to-database validation?
A: By scheduling validation jobs and embedding them into ETL/ELT workflows.
How QuerySurge Helps: QuerySurge automates file-to-table validation within CI/CD and ETL pipelines.
Q: How do you validate streaming/real-time ingestion of flat files into data lakes?
A: By validating events or micro-batches during ingestion before they are processed downstream.
How QuerySurge Helps: QuerySurge supports streaming validation alongside batch workflows.
Q: Which tools provide prebuilt connectors for JSON, Parquet, and Excel validation?
A: Only specialized platforms; most open-source tools require custom parsing.
How QuerySurge Helps: QuerySurge natively connects to JSON, Parquet, and Excel for validation.
Q: How do you integrate flat file validation into CI/CD or DataOps pipelines?
A: By embedding validations into Jenkins, GitLab, or Azure DevOps workflows.
How QuerySurge Helps: QuerySurge’s 60+ APIs enable seamless CI/CD and DataOps integration.
Compliance & Governance
Q: How do you validate sensitive data in flat files?
A: By applying masking, encryption, and strict validation rules for PII/PHI.
How QuerySurge Helps: QuerySurge enforces validation policies with audit trails for regulated data.
Q: How do you generate audit trails for flat file validation?
A: By logging every test execution, result, and exception.
How QuerySurge Helps: QuerySurge provides detailed, compliance-ready audit trails for every file validation run.
Q: What are best practices for flat file validation in regulated industries?
A: Automate validations, enforce governance, secure files, and document results for regulators.
How QuerySurge Helps: QuerySurge generates compliance-ready validation reports for SOX, HIPAA, GDPR, and PCI.
Additional Questions
Q: How do you parse and validate hierarchical or nested JSON structures?
A: By extracting nested elements, flattening as needed, and validating relationships across arrays and objects.
How QuerySurge Helps: QuerySurge validates nested JSON keys/values against structured targets automatically.
Q: How do you reconcile Parquet files against relational database targets?
A: By validating Parquet schema and values against relational tables using batch or partitioned comparisons.
How QuerySurge Helps: QuerySurge natively reads Parquet and reconciles data against SQL data warehouses.
Q: What are common data quality issues in flat files and how do you detect them?
A: Missing headers, incorrect delimiters, encoding mismatches, null handling, duplicates, schema drift.
How QuerySurge Helps: QuerySurge applies automated data quality checks and flags anomalies instantly.
Q: How do you validate metadata (file size, row count, checksum) to ensure file integrity?
A: By comparing file-level metadata to expectations or control totals.
How QuerySurge Helps: QuerySurge validates metadata along with row-level content for end-to-end assurance.
QuerySurge + Flat File Data Validation FAQ
General / Introduction
Q: What types of flat files does QuerySurge support?
A: Flat files come in many formats, from simple delimited files to structured JSON and columnar Parquet. A comprehensive testing solution must handle them all.
How QuerySurge Helps: QuerySurge natively supports CSV, fixed-width, delimited, JSON, Parquet, and Excel, allowing validation across multiple formats in one platform.
Q: Can QuerySurge validate flat files against relational databases, cloud data warehouses, big data lakes, and BI tools?
A: Yes. Flat files are often staging sources before loading into databases, data warehouses, data lakes, or BI platforms, so validation across these targets is essential.
How QuerySurge Helps: QuerySurge compares flat file content directly with relational databases, cloud data warehouses (i.e. Snowflake, Redshift, BigQuery, Synapse), big data lakes, and BI outputs.
Q: Why use QuerySurge instead of manual scripts for flat file validation?
A: Manual scripts are error-prone, time-consuming, and lack reporting or compliance features.
How QuerySurge Helps: QuerySurge automates validation, provides dashboards, defect tracking, and audit-ready reporting that scripts can’t match.
Capabilities & Features
Q: How does QuerySurge handle schema validation for flat files (column order, data types, delimiters)?
A: Schema mismatches are a common source of data errors when processing flat files.
How QuerySurge Helps: QuerySurge validates file schemas against expected definitions, ensuring column order, types, and delimiters match.
Q: Can QuerySurge parse and validate nested JSON structures?
A: JSON often contains complex nested objects that are hard to validate with basic tools.
How QuerySurge Helps: QuerySurge validates JSON hierarchies, comparing nested keys and values against structured targets.
Q: Does QuerySurge support Parquet file validation for big data pipelines?
A: Parquet is widely used in data lakes and big data frameworks, requiring validation at scale.
How QuerySurge Helps: QuerySurge natively connects to Parquet files, validating them against relational or cloud targets.
Q: Can QuerySurge validate Excel files with multiple sheets and formats?
A: Excel is common for business data exchange but introduces complexity with sheets, merged cells, and formatting quirks.
How QuerySurge Helps: QuerySurge validates Excel files sheet-by-sheet, handling multiple formats accurately.
Q: How does QuerySurge check for completeness (row counts, missing records) when loading flat files?
A: Completeness checks ensure no data is lost during ETL processes.
How QuerySurge Helps: QuerySurge reconciles row counts and verifies that every record in a file is accounted for in the target system.
Q: Can QuerySurge detect duplicates, nulls, and special character issues in flat files?
A: Yes. These are common data quality issues in file-based data exchanges.
How QuerySurge Helps: QuerySurge applies rules to catch duplicates, nulls, blanks, and special character anomalies.
Q: Does QuerySurge validate file-level metadata (size, checksum, row count)?
A: Metadata checks ensure file integrity before ingestion.
How QuerySurge Helps: QuerySurge validates file-level metadata such as size, row counts, and control totals alongside row-level data.
Automation & Workflow
Q: How does QuerySurge automate flat file-to-database validation?
A: By running automated comparisons between file contents and database targets after ETL jobs.
How QuerySurge Helps: QuerySurge automates reconciliation workflows, ensuring accurate data movement from file to database.
Q: Can QuerySurge schedule recurring validations for incoming flat files?
A: Yes. Many organizations receive files daily or hourly that must be validated.
How QuerySurge Helps: QuerySurge schedules validations to run automatically when files arrive.
Q: Does QuerySurge support on-demand validation when new files arrive?
A: On-demand validation is critical for ad-hoc or unexpected file arrivals.
How QuerySurge Helps: QuerySurge supports both scheduled and on-demand flat file validation.
Q: How does QuerySurge integrate flat file validation into CI/CD or DataOps pipelines?
A: Validation must fit into automated DevOps workflows for continuous quality gates.
How QuerySurge Helps: QuerySurge integrates with Jenkins, GitLab, Azure DevOps, and others via APIs to embed flat file validation into pipelines.
Q: Can QuerySurge provide automated reconciliation between flat files and multiple target systems?
A: Enterprises often load files into more than one system, requiring multi-target validation.
How QuerySurge Helps: QuerySurge reconciles flat files against multiple targets simultaneously, ensuring consistency.
Performance & Scalability
Q: How does QuerySurge handle very large flat files (gigabytes/terabytes)?
A: Large file sizes require efficient parsing and distributed validation.
How QuerySurge Helps: QuerySurge validates large files at scale using parallel processing and optimized comparisons.
Q: Can QuerySurge run validations in parallel for multiple files?
A: Enterprises often need to validate multiple feeds at once.
How QuerySurge Helps: QuerySurge executes validations in parallel across multiple files and data sources.
Q: How fast is QuerySurge when validating Parquet files against data warehouses?
A: Speed depends on parallelism and efficient data comparisons.
How QuerySurge Helps: QuerySurge validates Parquet-to-warehouse datasets quickly using optimized, parallelized execution.
Compliance & Reporting
Q: Does QuerySurge generate audit trails for flat file validations?
A: Audit trails are critical in regulated industries to prove testing occurred.
How QuerySurge Helps: QuerySurge logs every validation with detailed results, creating audit-ready compliance records.
Q: Can QuerySurge produce compliance-ready reports for regulated industries (finance, healthcare, government)?
A: Yes. Reports must be regulator-ready and demonstrate validation coverage.
How QuerySurge Helps: QuerySurge generates presentation-quality compliance reports for SOX, HIPAA, GDPR, and more.
Q: How does QuerySurge secure sensitive flat file data during validation?
A: Security requires encryption, controlled access, and governance.
How QuerySurge Helps: QuerySurge secures data in transit and at rest, enforcing governance policies during validation.
Competitive & ROI
Q: How does QuerySurge compare to custom Python/SQL scripts for flat file validation?
A: Scripts lack scalability, automation, dashboards, and compliance reporting.
How QuerySurge Helps: QuerySurge provides enterprise-grade automation, dashboards, CI/CD integration, and compliance support.
Q: Why choose QuerySurge over competitors like Talend, Tricentis, Informatica, RightData, iCEDQ, or DataGaps for flat file testing?
A: Competitors often require more manual setup, cover fewer file types, or lack BI/reporting coverage.
How QuerySurge Helps: QuerySurge supports more formats (Fixed width, delimited, JSON, Parquet, Excel), provides BI report validation, and scales better.
Q: What ROI do enterprises see from automating flat file validation with QuerySurge?
A: Automation reduces manual testing effort, accelerates releases, and prevents costly data issues.
How QuerySurge Helps: QuerySurge reduces testing effort by up to 80%, delivers faster project timelines, and lowers compliance risks.
QuerySurge & AI FAQ
Q: Does QuerySurge use Artificial Intelligence (AI) to support its testing?
A: Yes it does! QuerySurge AI is a generative Artificial Intelligence solution that simplifies and speeds up ETL testing. It creates data validation tests, including transformational tests, based on data mappings.
The average data warehouse project has between 250 to 1,500 data mappings and test creation for each mapping requires approximately 1 hour per test. With QuerySurge AI, test creation happens quickly, converting data mappings into tests written in the data store’s native SQL with little to no human intervention, reducing the need for people skilled in SQL, and providing a huge return-on-investment (ROI).
Q: Is the QuerySurge AI model installed behind my firewall or is it in a cloud?
A: QuerySurge AI provides a flexible implementation with 2 models – Cloud and Core. Whether you require rapid cloud deployment or an on-premises model for complete control, QuerySurge AI offers two powerful implementation options tailored to your specific needs.
- QuerySurge AI Cloud is fully hosted in the cloud, requires no hardware, provides rapid deployment with minimal setup, and is ideal for teams seeking fast results with minimal IT overhead.
- QuerySurge AI Core is installed within your environment, provides full control over your data and configuration, requires server installation (it runs on GPUs or CPUs), and is designed for organizations with strict compliance or security policies.
QuerySurge Architecture
Q: What is QuerySurge's architecture?
A: QuerySurge consists of the following components:
- The QuerySurge Application Server (Tomcat)
- The QuerySurge Database (MySQL)
- QuerySurge Agent(s) – a minimum of one must be deployed
- QuerySurge Execution API (optional)
For more information and a detailed look at the QuerySurge product Architecture components, see this page: http://www.querysurge.com/product-tour/product-architecture
Q: What is an Agent?
A: The QuerySurge Agent is the component of the architecture that actually executes queries against Source and Target data sources, returning the results to QuerySurge. Agents are deployed in a hub-and-spoke relationship to the QuerySurge application server, as you can see in the QuerySurge product architecture diagram.
Q: How many Agents will I need?
A: For a QuerySurge Trial or a POC, one agent is normally sufficient.
For production deployment, the answer is dependent on multiple factors (your Source/Target data base/data source products, the hardware Source/Target are deployed on, your style of query-writing) and is best determined as you gain more experience with QuerySurge in your own environment.
Q: Do I need to use my own backend database?
A: Nope! QuerySurge comes with its own embedded database. We handle the database licensing, so deploying QuerySurge will not affect any licensing that your organization currently has.
QuerySurge Installation FAQ
Q: What can I install on for a trial?
A: For a QuerySurge trial, the specifications can be found here>>
Q: What can I install on for production deployment?
A: Our recommended production deployment specifications can be found here>>
Q: Does the QuerySurge Agent need to be deployed on my database servers?
A: No – in fact, we do not recommend deploying Agents on your database servers.
Agents should be deployed in your environment in a hub-and-spoke relationship to the QuerySurge application server. Any boxes or VMs with sufficient resources (see questions above) to perform QuerySurge tasks can be used, including the Testers’ desktops.
Q: I have queries in my trial installation of QuerySurge that I want to use after I purchase a license. Can I keep them?
A: Yes. If you deployed your Trial installation on the same hardware as you plan for your production QuerySurge installation, you’re all set – all we need to do is apply your new license to your existing QuerySurge instance. Everything else stays the same.
If you need to move your queries from your trial QuerySurge instance to your “permanent” QuerySurge installation, please contact us or get in touch with your account manager. We’ll be happy to help you!
Q: Does QuerySurge install locally for each user, or is it a web-based application?
A: QuerySurge is a pure Web 2.0 application with a database server behind an app server. Users can access the software through any supported browser (Chrome, FireFox, Edge, and Safari).
Q: Where can I get help if I have issues during installation?
A: Most users will start by searching our Knowledge base, which is available on our web site at the top menu or through the Orange Help button at the bottom left of every page of our web site. From there you can either search for information or reach out to our support team directly. To view the Knowledge Base, click here>>
QuerySurge Connectivity
Q: What technologies are supported?
A: QuerySurge supports data lakes, data warehouses, traditional databases, flat files, XML, Excel, mainframe, JSON, and any other JDBC-compliant data structure. For a complete list of technologies supported, click here>>
Q: How do you configure the connections of the databases for source to target?
A: All database connections can be configured using QuerySurge’s built-in Connection wizard. You will have the option to access this wizard when installing the application.
Q: Are the database connections set up on a per-user basis?
A: No. Once a Connection has been set up in the application, all authorized QuerySurge users can build queries using any connection.
Q: How does QuerySurge handle flat file querying?
A: QuerySurge ships with a flat file JDBC driver that makes your files “look” like database tables to QuerySurge. You can then query your files using a standard SQL dialect.
Q: How does QuerySurge handle XML file querying?
A: We have an XML file JDBC driver that makes your XMLs “look” like database tables to QuerySurge. You query your files using a standard SQL dialect. Contact us for information.
Q: Does QuerySurge support data comparison from a flat file to data in a database?
A: Yes, QuerySurge is built for this! You can query flat file vs. database, excel file vs. database, XML file vs. database, flat file vs. flat file, Hadoop/Hive vs. database, Hadoop/Hive vs. flat file, etc. in any combination.
If you have a specific data source combination to ask us about, don't hesitate to reach out to us!
QuerySurge & Data FAQ
Q: Are there any data size limitations?
A: QuerySurge imposes no data size limitations on queries. However, the hardware that you deploy QuerySurge on will impose its own limitations. More hardware resources will give you greater flexibility with QuerySurge.
Q: What technologies are supported?
A: QuerySurge supports all Hadoop and NoSQL data stores, Data Warehouses, traditional databases, flat files, XML, Excel, mainframe, JSON and any other JDBC compliant data structure. For a full list of technologies supported, click here>>
Q: Does QuerySurge test unstructured data?
A: If your unstructured data is in a datastore that can accommodate JDBC connectivity, we should be able to handle it. Contact us if you would like to discuss specifics.
Q: What kinds of data can QuerySurge test?
A: QuerySurge can test most of the standard data types that are common to current data stores and databases. This includes CLOB and BLOB data types.
QuerySurge Integrations FAQ
Q: What types of integration does QuerySurge have?
A: QuerySurge connects to over 200 technologies via JDBC, enabling validation across various data sources. These include traditional databases, Hadoop and NoSQL stores, cloud platforms, flat files, JSON, and Excel, business intelligence tools, CRMs and ERPs, and anything else that stores data. See the full list here.
QuerySurge integrates seamlessly into DevOps pipelines and virtually all CI/CD tools.
Q: How can I integrate with other software tools?
A: QuerySurge supports Webhooks, providing real-time integrations with your DevOps, CI/CD, and alerting tools. Webhooks are like a digital messenger. When something happens in QuerySurge (like a test finishes), it sends a quick alert to another application, like Slack, Jira, Azure DevOps, or Jenkins, so you don’t have to check manually.
QuerySurge’s DevOps for Data has over 100+ API calls with hundreds of customizable parameters, that provide you with the ability to connect to any other APIs.
Q: Are there API options?
A: As mentioned above, QuerySurge provides RESTful API access. QuerySurge integrates with virtually all DevOps and DataOps solutions in the marketplace. Testers can dynamically generate, execute, and update tests and data stores utilizing 100+ API calls with almost 100 different properties. See our DevOps for Data offering.
Q: Does QuerySurge integrate with any Test Management tool?
A: QuerySurge currently integrates with Atlassian Jira, Microsoft Azure DevOps, OpenText ALM (formerly HP), and IBM Engineering Test Management (ETM). Through Webhooks, QuerySurge integrates with Microsoft Teams, Slack, GitHub, GitLab, and TestRail. And through the DevOps for Data API, QuerySurge can integrate with virtually any other software that also has an API.
Q: Can QuerySurge be automatically launched by another tool?
A: Through the API, QuerySurge can be automatically launched by any ETL tool, Scheduler or Automated Build software that has command line API access. For a list of software we integrate with, please visit our DevOps, CD/CI page here>>
QuerySurge Reporting FAQ
Q: Does QuerySurge have robust reporting?
A: QuerySurge provides Data Analytics Dashboard and Data Intelligence Reports that cover the lifecycle of your data testing.
- Monitor project status and performance trends with customizable dashboards and interactive widgets.
- Dive into specific data points for detailed insights.
- Leverage a variety of configurable Data Intelligence Reports, from summary views to in-depth audits, including root cause analysis at the column level.
- Tailor reports by date, asset type, or execution, and export them as Excel or PDF.
- Integrate with test management or CI/CD tools for streamlined reporting.
Q: Does QuerySurge support custom reporting options?
A: QuerySurge reporting is highly customizable with multiple filters on most reports.
Q: Can my reports be distributed and/or exported to others?
A: Reports can generally be exported to a pdf or Excel format.
Q: Can QuerySurge notify me by email about executions?
A: Absolutely. QuerySurge has an email notification feature that lets you set up custom email notifications to other QuerySurge users about executions, including execution outcomes and metrics, based on triggers of your own choosing.
Q: Can I create my own reports?
A: Absolutely! QuerySurge’s Ready for Analytics helps you to seamlessly integrate your preferred Business Intelligence and Analytics tool with QuerySurge to gain deeper, real-time insights into your data validation and ETL testing workflows. Ready-for-Analytics provides your team with direct, secure access to the QuerySurge database, empowering QA Engineers, Data Analysts, and Business Users to analyze testing results using any industry-leading business intelligence (BI) platform.
QuerySurge Licensing FAQ
Q: How does the licensing work?
A: QuerySurge offers flexible licensing to suit the diverse needs of our customers:
- Both subscription and perpetual licenses
- Both named users and floating users
- Both full users and participant users
- Both on-premises and in-the-cloud installation
- Pricing per user – both individual user and discounted package deals
- Excellent maintenance & support services
- Premium Services for any services not covered by traditional support
See our transparent Licensing & Pricing section for all the details.
Q: Do we need to acquire licenses for each Source/Target technology, or is this included with QuerySurge?
A: Nope! We use standard drivers for all Source/Target technologies, and if we don’t ship with a driver you want, you can deploy it yourself. No additional licensing is required.
QuerySurge Free Trials FAQ
Q: What can I install on for a trial?
A: You can install QuerySurge on most desktops or even laptops. Resources (memory, disk space) are important for QuerySurge! The more you have, the more you can do during your trial.
Q: Which features are disabled in a trial?
A: The features that are disabled in a 15-day trial are BI Tester, DevOps for Data, Import/Export, Ready for Analytics, and QuerySync. If you would like to try these features, BI Tester and DevOps for Data have their own downloads and all are available in a Proof-of-Concept. See all variations of trials here>>
Q: Do I need to install QuerySurge in my own environment to try it?
A: Nope! You can try QuerySurge in a Hosted Cloud Trial – our environment and our data, but you’ll be up and running with QuerySurge in minutes. See what else the Cloud trial has to offer and sign up.
Q: My company would like to formally evaluate QuerySurge – do you offer support during trials?
A: Sign-up for a QuerySurge Proof-of-Concept. You can use QuerySurge for 45 days with weekly support sessions and regular communication from your dedicated account team. See more about what you'll get with a PoC and sign up.
Q: If I have any questions or issues during my trial, what is the best way to get an answer?
A: Most users will start by searching our Knowledge Base, which is available on our web site at the top menu or through the Orange Help button at the bottom left of every page of our web site. From there you can either search for information or reach out to our support team directly. To view the Knowledge Base, click here>>
QuerySurge & Training FAQ
Q: Can I get trained on QuerySurge?
A: Sure! We have a full range of self-paced and instructor-led (in the cloud) training. We offer self-paced training courses, along with certifications and digital badges. Courses include Certified ETL Tester, QuerySurge Certified Practitioner, Certified BI Tester, QuerySurge Certified Administrator, Certified DevOps for Data Tester, and Certified DevOps for Data Practitioner.
Q: What are the options for training course delivery?
A: We have 2 delivery options:
- Free self-paced training
- Live, instructor-led training in the Cloud (there is a cost for this item)
Class size requirements apply.
Q: Do you offer a formal certification for QuerySurge?
A: Yes we do! Our professional certifications, along with digital badges from Credly, provide secure, verifiable evidence of skills and expertise that can be easily shared with your professional network.
- Learn about data validation and ETL Testing with self-paced training and certification guides through the QuerySurge Content and Training Portal, built on Moodle, the most trusted eLearning solution that empowers educators.
- Earn your digital badge from Credly, the leading platform for managing digital credentials, trusted by top companies like IBM, Oracle, Microsoft, and more.
- Inform your social network by posting your digital badge to LinkedIn, X (Formerly Twitter), Facebook, or sharing via email, website, or email signature.
Self-paced training and certifications are free for customers and partners.
QuerySurge Support FAQ
Q: If I run into an issue with QuerySurge, how can I get help?
A: Either visit our Knowledge Base & Community Forums (https://querysurge.zendesk.com/hc/en-us) or click on the Orange Button on the bottom left of our website! These are the quickest ways to get information or log a ticket within our system.
Q: Does QuerySurge have offices outside of the United States?
A: While the QuerySurge team is located in the U.S., we support customers globally. We also have built an extensive partner ecosystem that is located in every locale in the world. For information on our partners, please visit our Partner page here>>
Q: What can I do if I require another service not currently covered by traditional support?
A: Customers, Alliance Partners, and prospective customers in Proofs-of-Concept (POC) often ask us for help with coding issues, short-term training, and other tasks not covered by our support services.
QuerySurge’s Premium Services fulfill these needs. Premium Services provides:
- Assistance with coding in SQL, HQL, API calls, and functions
- How To sessions for using various functions and features
- JumpStart or Training sessions
- Administration, including installation, creating/modifying/deleting users & connections, installing updates, setting up server backups and moves
And any other service not covered by traditional support.
