Table of Contents

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  1. Preface
  2. Working with Transformations
  3. Aggregator Transformation
  4. Custom Transformation
  5. Custom Transformation Functions
  6. Data Masking Transformation
  7. Data Masking Examples
  8. Expression Transformation
  9. External Procedure Transformation
  10. Filter Transformation
  11. HTTP Transformation
  12. Identity Resolution Transformation
  13. Java Transformation
  14. Java Transformation API Reference
  15. Java Expressions
  16. Java Transformation Example
  17. Joiner Transformation
  18. Lookup Transformation
  19. Lookup Caches
  20. Dynamic Lookup Cache
  21. Normalizer Transformation
  22. Rank Transformation
  23. Router Transformation
  24. Sequence Generator Transformation
  25. Sorter Transformation
  26. Source Qualifier Transformation
  27. SQL Transformation
  28. Using the SQL Transformation in a Mapping
  29. Stored Procedure Transformation
  30. Transaction Control Transformation
  31. Union Transformation
  32. Unstructured Data Transformation
  33. Update Strategy Transformation
  34. XML Transformations

Transformation Guide

Transformation Guide

Joining Two Instances of the Same Source

Joining Two Instances of the Same Source

You can also join same source data by creating a second instance of the source. After you create the second source instance, you can join the pipelines from the two source instances. If you want to join unsorted data, you must create two instances of the same source and join the pipelines.
The following figure shows two instances of the same source joined with a Joiner transformation:
The mapping contains two sources, ITEMS and ITEMS1, and two source qualifiers. ITEMS connects to a Joiner transformation. ITEMS1 connects to a Aggregator transformation, which connects to the Joiner transformation. The Joiner transformation connects to a target.
When you join data using this method, the Integration Service reads the source data for each source instance, so performance can be slower than joining two branches of a pipeline.

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