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

Sequence Generator transformation rules and guidelines

Sequence Generator transformation rules and guidelines

Consider the following guidelines when you create a Sequence Generator transformation:
  • When you map the NEXTVAL or CURRVAL output fields, ensure that the data type of the mapped field is appropriate.
  • When you run the mapping in the Mapping Designer, the current value is not saved so each time you run the mapping, it begins with the initial value.
  • When you run the task in the
    mapping
    task wizard, you can edit the current value to start the sequence with a specified value.
  • You cannot use a Sequence Generator transformation in a mapplet.
  • In an
    elastic mapping
    , generated values might not increase monotonically. Values are generated based on the order that the Spark engine processes the data.