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. Data Services transformation
  9. Deduplicate transformation
  10. Expression transformation
  11. Filter transformation
  12. Hierarchy Builder transformation
  13. Hierarchy Parser transformation
  14. Hierarchy Processor transformation
  15. Input transformation
  16. Java transformation
  17. Java transformation API reference
  18. Joiner transformation
  19. Labeler transformation
  20. Lookup transformation
  21. Machine Learning transformation
  22. Mapplet transformation
  23. Normalizer transformation
  24. Output transformation
  25. Parse transformation
  26. Python transformation
  27. Rank transformation
  28. Router transformation
  29. Rule Specification transformation
  30. Sequence Generator transformation
  31. Sorter transformation
  32. SQL transformation
  33. Structure Parser transformation
  34. Transaction Control transformation
  35. Union transformation
  36. Velocity transformation
  37. Verifier transformation
  38. 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.

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