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

Transformations

Transformations

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Input groups

Input groups

By default, a Union transformation has two input groups. If you want to merge data from more than two sources, add an input group for each additional source. Each group can have different field rules for each upstream transformation.
The input groups have the following characteristics:
  • The Union transformation initializes its output fields based on fields in the first source that you connect to an input group.
  • Each input group can use a different field mapping mode or parameter.
  • You can parameterize the field mappings or define the field mapping for each input group.
To add an input group, in the Mapping Designer, connect an upstream transformation to the "New Group" group of the Union transformation. You can also add input groups on the
Incoming Fields
 tab of the Union transformation.
You can rename input groups. You can also delete input groups as long as there are at least two remaining input groups. Rename and delete input groups on the
Incoming Fields
 tab.
To delete an input group, hover over the input group name on the
Incoming Fields
 tab. Click the
Delete
 icon that appears. When the transformation has only two input groups, the
Delete
 icon won't appear because Union transformations require at least two input groups.
0 COMMENTS
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Data Integration - December 20, 2023

How can I delete one input from an IICS union transformation and leave the ones I still need? 

Informatica Documentation Team - January 06, 2024

Hi Data Integration,

Thanks for reaching out. You can delete an input group on the Incoming Fields tab of the Union transformation. To do this, select the Incoming Fields tab and locate the input group that you want to delete. When you hover the mouse over the input group name, a delete (trash can) icon appears on the right side in the same row as the input group name. Click the delete icon.

Note that a Union transformation needs to have at least two input groups. So, when the transformation has only two input groups, the delete icon doesn't appear when you hover over the input group name.

Hope that helps!