Table of Contents

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  1. Preface
  2. Introduction to Test Data Management
  3. Test Data Manager
  4. Projects
  5. Policies
  6. Data Discovery
  7. Data Subset
  8. Data Masking
  9. Data Masking Techniques and Parameters
  10. Data Generation
  11. Data Generation Techniques and Parameters
  12. Working with Test Data Warehouse
  13. Plans and Workflows
  14. Monitor
  15. Reports
  16. ilmcmd
  17. tdwcmd
  18. tdwquery
  19. Data Type Reference
  20. Data Type Reference for Test Data Warehouse
  21. Glossary

Primary Key Discovery

Primary Key Discovery

To discover possible keys in source tables, create a primary key profile.
To identify potential data quality issues, create a primary key profile that discovers non-unique rows. A primary key discovery profile is also useful when the primary key is a combination of columns that uniquely defines a row. Non-conforming rows might contain duplicate information. After you discover potential keys in a table, you can add the keys to the source table in a project.
For example, an Employee table contains an EmpID column. The value of the column is 100% unique. A primary key profile identifies the column as a possible primary key that you can add to the table in the project.