Data Migration Testing
Migrate data with confidence, not guesswork
Whether you are modernizing legacy platforms, migrating from one vendor to another, or moving from on-premises systems to the cloud, data migration is one of the most complex and high-risk initiatives IT teams face.
QuerySurge automates data migration testing so your team can validate source-to-target data at scale, catch issues early, and move into cutover with evidence-based confidence.
Why QuerySurge for data migration testing?
Manual SQL checks and spreadsheet spot checks do not scale for enterprise migrations. QuerySurge gives you a repeatable validation framework that supports mock runs, cutover, and post-migration verification
Key Benefits
- Automated source-to-target validation
- Faster test creation with Query Wizard
- AI-assisted acceleration with QuerySurge AI
- Repeatable test suites for every migration wave
- Rapid defect isolation during mock runs
- Audit-ready reporting for sign-off
- API-driven execution for CI/CD and orchestration
What QuerySurge validates during a migration
QuerySurge helps teams prove that migrated data is complete, accurate, and usable in the target system.
Common validation types
- Completeness checks - Confirm row counts and record volumes match between source and target.
- Control totals and reconciliations - Validate sums, counts, minimums, maximums, and other aggregates by business slice (date, region, product, line of business).
- Field mapping verification - Confirm IDs, codes, statuses, and key business attributes map correctly.
- Transformation logic validation - Verify derived fields, standardization rules, and conversion logic behave as expected.
- Referential integrity checks - Catch orphaned records and broken parent-child relationships.
- Filtered and subset comparisons - Validate specific migration waves, batches, or high-risk populations.
- Exception and variance handling - Separate true defects from approved legacy data exceptions and document both.
Accelerate migration testing with the Query Wizard— No Coding Needed.
The Query Wizard can help your team validate data with no coding required – and it’s all performed graphically through the QuerySurge interface.
The Wizard speeds up the validation process dramatically and simplify the workload by validating hundreds of tables and columns in minutes.
How the Query Wizard helps
- Speeds up test build-out for counts, aggregates, and filtered comparisons
- Reduces SQL bottlenecks so analysts and SMEs can contribute
- Standardizes query patterns across domains and migration waves
- Makes defect triage faster by quickly creating narrowed validations for batch, date, or entity-specific issues
- Supports rapid cutover changes when new tables or revised filters are introduced late
With Query Wizard, teams can create and refine migration validations faster, while keeping test logic consistent and repeatable.
Add AI-assisted migration validation
with QuerySurge AI
Migration teams often lose time translating requirements, mappings, and test ideas into executable validations. QuerySurge AI helps accelerate that process by assisting teams in generating and refining migration test logic faster.
How QuerySurge AI helps
- Speeds up test design by helping teams turn validation intent into executable test logic
- Expands coverage by surfacing additional validation scenarios that teams may miss manually
- Improves consistency across migration waves with standardized test generation patterns
- Supports faster triage by helping teams investigate failures and build follow-up checks
- Reduces manual effort in creating repetitive validation queries and comparison logic
QuerySurge AI + Query Wizard together
- Query Wizard helps users quickly build structured source and target queries
- QuerySurge AI helps accelerate test creation, suggest validation patterns, and refine logic
This combination helps migration teams move faster while maintaining strong test coverage and repeatability.
QuerySurge will help you:
- Leverage artificial intelligence to quickly & easily increase test coverage
- Continuously detect data issues in the delivery pipeline
- Utilize analytics to optimize your critical data
- Improve your data quality at speed
- Provide a huge ROI
But don’t believe us (or our clients). Try it for yourself.
Check out our free trials and great tutorial
