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  1. Preface
  2. Understanding Mapping Architect for Visio
  3. Mapping Templates
  4. Mapping Objects
  5. Mapping Template Rules
  6. Using the Import Mapping Template Wizard
  7. Using the mapgen Command Line Program
  8. Using Informatica Mapping Templates
  9. Appendix A: Glossary

Mapping Architect for Visio Guide

Mapping Architect for Visio Guide

Union Transformation

Union Transformation

Use the Union transformation to merge data from multiple pipelines or pipeline branches into one pipeline branch. It merges data from multiple sources similar to the UNION ALL SQL statement to combine the results from two or more SQL statements.
The following table describes the required properties for the Union transformation:
Transformation Property
Description
Transformation Name
Name of the transformation.
Module Identifier
Name of the module.
Function Identifier
Name of the procedure in the module.
Transformation Scope
Indicates how the Integration Service applies the transformation logic to incoming data.
Generate Transaction
Indicates if the Union transformation can generate transactions.
Output Is Repeatable
Indicates if the order of the output data is consistent between session runs.
Group Name
Creates multiple input groups and multiple output groups in a transformation.
Group Ports
Creates and deletes ports for input groups and output groups.
When you create a port, PowerCenter adds it below the currently selected row or group.

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