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

Rules and Guidelines for Expression Masking

Rules and Guidelines for Expression Masking

Use the following rules and guidelines for expression masking:
  • You cannot use the output from an expression as input to another expression. If you manually add the output column name to the expression, you might get unexpected results.
  • Select functions, columns, variables, and operators from the point-and-click interface to minimize errors when you build expressions.
  • If the data masking rule is configured for repeatable masking, specify the storage table in the data masking plan. If the storage table does not exist, the data masking operation fails.