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

Single-Table Constraints Overview

Single-Table Constraints Overview

Use a single-table constraint to run tests on a single table. Single-table constraints define valid data within a table. You can enforce valid values, aggregates, formats, and uniqueness. For example, you might want to verify that no annual salary in an employee table is less than $10,000.
Errors in complex logic often manifest themselves in very simple ways, such as NULL values in the target. Therefore, setting aggregate, value, NOT_NULL, UNIQUE, and FORMAT constraints on a target table is a critical part of any testing plan.
To run single-table constraints, you must create a single table. You can select a relational table, flat file, XML file, lookup view, SQL view, or join view as a single table.
If a single-table constraint fails to run, right-click the single table to retrieve the corresponding session log. View the session log to view errors that may have occurred while running the underlying PowerCenter session.