Table of Contents

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