Data Warehouse Testing

Automate the data validation & testing of your Data Warehouse to deliver data quality at speed

What's Involved in Data Warehouse Testing?

According to authors Doug Vucevic and Wayne Yaddow in the book "Testing the Data Warehouse Praticum" (Trafford Publishing), some of the main challenges to test for in data warehouse testing are:

  • Data Completeness
  • Data Transformation
  • Data Quality
  • Regression Testing

The only way to perform these tests in a reasonable time frame, which will compare huge volumes of data, is through automating the tests.

$8.2 million

what the average organization loses annually because of bad data

$20 million

22% estimated this annual loss resulting from bad data

$100 million

4% put that figure at this astounding amount

source: Gartner, Inc.

The 3 Biggest Issues with Data Warehouse Testing

  • The #1 Method to compare data from sources and target data warehouse – Sampling, also known as “Stare and Compare” - is an attempt to verify data dumped into Excel spreadsheets by viewing or “eyeballing” the data. Less than 10% is usually verified and reporting is manual.
  • The #2 MethodMINUS queries – subtracts data sets from each other twice and you analyze leftover rows - is inefficient and produces no audit trail or reporting.
  • Both methods require SQL programming and very few testers, analysts or operations people know SQL.

QuerySurge - The Data Warehouse Testing Solution

QuerySurge is the smart Data Testing solution for automating the validation & testing of Data Warehouses and the ETL testing process. And QuerySurge makes it really easy for both novice and experienced team members to validate their organization's data quickly through our Query Wizards while still allowing power users the ability to write custom code.

QuerySurge ensures that the data extracted from data sources remains intact in the target data warehouse by analyzing and pinpointing any differences quickly.

The Benefits of QuerySurge

  • Data quality at speed. Validate up to 100% of all data up to 1,000 x faster than traditional testing. more>>
  • Test automation. Now you can automate your data testing from the kickoff of tests to performing the validation to automated emailing of the results and updating your test management system. more>>
  • Test across 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. more>>
  • DevOps for Continuous Testing. QuerySurge integrates with most Data Integration/ETL solutions, Build/Configuration solutions, and QA/ Test Management solutions. more>>
  • Analyze your data, with our Data Analytics Dashboard & Data Intelligence Reports more>>
  • Integrate with leading Test Management Solutions. QuerySurge offers integration with Micro Focus (formerly HP) ALM/Quality Center, IBM RQM and Microsoft DevOps (formerly TFS & VSTS). Now you can store all of your data tests and receive all of your results in your favorite test management solution. more>>

QuerySurge will help you:

But don’t believe us (or our clients). Try it for yourself.
Check out our free trials and great tutorial