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. Creating a Data Subset
  8. Performing a Data Masking Operation
  9. Data Masking Techniques and Parameters
  10. Plans and Workflows
  11. Monitor
  12. Reports
  13. ilmcmd
  14. Data Type Reference
  15. Data Type Reference for Hadoop

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.