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Table of Contents

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  1. Preface
  2. Transformations
  3. Source transformation
  4. Target transformation
  5. Aggregator transformation
  6. Expression transformation
  7. Filter transformation
  8. Input transformation
  9. Joiner transformation
  10. Lookup transformation
  11. Mapplet transformation
  12. Normalizer transformation
  13. Output transformation
  14. Rank transformation
  15. Router transformation
  16. Sequence transformation
  17. Sorter transformation
  18. SQL transformation
  19. Union transformation

Transformations

Transformations

Disabling incoming fields

Disabling incoming fields

You can disable incoming fields to connect only the generated sequence in the output fields, NEXTVAL and CURRVAL, to one or more downstream transformations. When you disable incoming fields, you can't connect the Sequence transformation to upstream transformations.
When you disable incoming fields, at least one field from another transformation must be connected to the downstream transformation along with the Sequence transformation fields. For example, if the mapping contains a Sequence transformation and a Source transformation and the Sequence transformation is connected to a Target transformation, you must connect at least one field from the Source transformation to the Target transformation.
The following image shows a mapping where incoming fields are disabled in the Sequence transformation:
The mapping canvas shows the Source transformation and the Sequence transformation connected to the Target transformation.

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