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. Analyzing Test Data with Data Coverage
  14. Plans and Workflows
  15. Monitor
  16. Reports
  17. ilmcmd
  18. tdwcmd
  19. tdwquery
  20. Data Type Reference
  21. Data Type Reference for Test Data Warehouse
  22. Data Type Reference for Hadoop
  23. Glossary

Seed

Seed

Apply a seed value to create repeatable output for data masking output. The seed value is a starting point for generating masked values.
You can define a seed value from 1 through 999. The default seed value is 1. Apply the same seed value to a column to return the same masked data values in different source data. For example, you have the same
Cust_ID
column in four tables. If you want all of them to output the same masked values, you can apply the same seed value when you mask each column.
You can create a variable for the seed value in a parameter file. When you configure repeatable output in a masking rule, enter the name of the variable instead of a seed value. You can then change the seed value in the parameter file if you need to change the seed value, instead of editing the masking rule.
The TDM administrator can also set a central seed value for all data masking components with repeatable output. The central seed value overrides any other seed value.