Table of Contents

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  1. Preface
  2. Introduction to Data Validation Option
  3. New Features and Behavior Changes
  4. Repositories
  5. XML Data Source
  6. Tests for XML Data Sources
  7. Connections
  8. Expressions
  9. Table Pairs
  10. Tests for Table Pairs
  11. Single-Table Constraints
  12. Tests for Single-Table Constraints
  13. Examples of Tests from Spreadsheets
  14. SQL Views
  15. Lookup Views
  16. Join Views
  17. Aggregate Views
  18. Business Intelligence and Reporting Tools Reports
  19. Dashboards
  20. DVOCmd Command Line Program
  21. Troubleshooting
  22. Datatype Reference
  23. Reporting Views
  24. Metadata Import Syntax
  25. Jasper Reports
  26. Glossary

Data Validation Option User Guide

Data Validation Option User Guide

Test Logic Processing in the Data Source

Test Logic Processing in the Data Source

To increase performance, you can configure a single table or table pair so that the data source processes some of the test logic. The data source can process the WHERE clause, sorting, aggregation, and data sampling.
Data Validation Option generates a PowerCenter mapping that contains the test logic. By default, when you run a table-pair test, the PowerCenter Integration Service processes the test logic. In some cases, you can significantly increase test performance if the data source processes the test logic.
The data source can process the following test logic:
  • WHERE clause
  • Sorting and aggregation
  • Data sampling
The load on the data source increases when it processes test logic. Verify that the net gain is beneficial when the data source processes the test logic.