Table of Contents

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  1. Preface
  2. Transformations
  3. Source transformation
  4. Target transformation
  5. Access Policy transformation
  6. Aggregator transformation
  7. B2B transformation
  8. Cleanse transformation
  9. Data Masking transformation
  10. Data Services transformation
  11. Deduplicate transformation
  12. Expression transformation
  13. Filter transformation
  14. Hierarchy Builder transformation
  15. Hierarchy Parser transformation
  16. Hierarchy Processor transformation
  17. Input transformation
  18. Java transformation
  19. Java transformation API reference
  20. Joiner transformation
  21. Labeler transformation
  22. Lookup transformation
  23. Machine Learning transformation
  24. Mapplet transformation
  25. Normalizer transformation
  26. Output transformation
  27. Parse transformation
  28. Python transformation
  29. Rank transformation
  30. Router transformation
  31. Rule Specification transformation
  32. Sequence transformation
  33. Sorter transformation
  34. SQL transformation
  35. Structure Parser transformation
  36. Transaction Control transformation
  37. Union transformation
  38. Velocity transformation
  39. Verifier transformation
  40. Web Services transformation

Transformations

Transformations

Sequence transformation

Sequence transformation

The Sequence transformation is a passive and connected transformation that generates numeric values. Use the Sequence transformation to create unique primary key values, replace missing primary keys, or cycle through a sequential range of numbers.
The Sequence transformation contains pass-through fields and two output fields, NEXTVAL and CURRVAL.
In advanced mode, the transformation contains one output field, NEXTVAL. You can connect the output fields to one or more downstream transformations.
The
mapping
task generates a numeric sequence of values each time the mapped fields enter a connected transformation. You set the range of numbers in the Mapping Designer. You can change the initial number in the sequence when you run the task.
After the task completes, you can see the current value and the initial value for a Sequence transformation in the
mapping
task details.

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