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 uses

Sequence Generator transformation uses

Use a Sequence Generator transformation to generate a sequence of numbers in the following ways:
Generate a sequence of unique numbers.
The sequence begins with the Initial Value that you specify.
Generate a cyclic sequence of numbers.
You can establish a range of values for the Sequence Generator transformation. If you use the cycle option, the Sequence Generator transformation repeats the range when it reaches the end value. For example, if you set the sequence range to start at 10 and end at 50, and you set an increment value of 10, the Sequence Generator transformation generates the following values: 10, 20, 30, 40, 50. The sequence starts over again at 10.
Does not apply to
elastic mappings
.
Continue an existing sequence of numbers.
Each time you run the
mapping
task, the task updates the value to reflect the last-generated value plus the Increment By value. If you want the numbering to start over each time you run the task, you can enable the Reset configuration property.
Generate a sequence of unique numbers for multiple partitions using the same Sequence Generator.
You can specify the number of sequential values the
mapping
task caches at a time so that the task does not generate the same numbers for each partition. You cannot generate a cyclic sequence of numbers when you use the same Sequence Generator for multiple partitions.
Does not apply to
elastic mappings
.