Table of Contents

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  1. Preface
  2. Transformations
  3. Source transformation
  4. Target transformation
  5. Aggregator transformation
  6. Cleanse transformation
  7. Data Masking transformation
  8. Deduplicate transformation
  9. Expression transformation
  10. Filter transformation
  11. Hierarchy Builder transformation
  12. Hierarchy Parser transformation
  13. Hierarchy Processor transformation
  14. Input transformation
  15. Java transformation
  16. Java transformation API reference
  17. Joiner transformation
  18. Labeler transformation
  19. Lookup transformation
  20. Mapplet transformation
  21. Normalizer transformation
  22. Output transformation
  23. Parse transformation
  24. Python transformation
  25. Rank transformation
  26. Router transformation
  27. Rule Specification transformation
  28. Sequence Generator transformation
  29. Sorter transformation
  30. SQL transformation
  31. Structure Parser transformation
  32. Transaction Control transformation
  33. Union transformation
  34. Velocity transformation
  35. Verifier transformation
  36. Web Services transformation

Transformations

Transformations

Unique substitution

Unique substitution

Unique substitution masking ensures that each unique source value uses a unique dictionary value.
To mask a source value with a unique dictionary value, you can configure unique substitution masking. If a source value is masked with a specific dictionary value, then no other source value is masked with this dictionary value.
For example, the Name column in the source data contains multiple entries of
John
. If you configure repeatable masking, every entry of
John
takes the same dictionary value, such as
Xyza
. However, other source values might also be masked with the same dictionary value. A source entry
Jack
can also use the dictionary value
Xyza
. As a result, all entries of John and Jack use the same dictionary value. When you configure unique substitution masking, if all source values of
John
use the
Xyza
dictionary value, then no other source value uses the same dictionary value.
Unique substitution masking requires a storage connection for the storage tables. Storage tables contain the source to dictionary value mapping information required for unique substitution masking.
If the source data contains more unique values than the dictionary, the masking fails because there are not enough unique dictionary values to mask all the source data.