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

Creating an Aggregator Transformation

Creating an Aggregator Transformation

To use an Aggregator transformation in a mapping, add the Aggregator transformation to the mapping. Then configure the transformation with an aggregate expression and group by ports.
To create an Aggregator transformation:
  1. In the Mapping Designer, click Transformation > Create. Select the Aggregator transformation.
  2. Enter a name for the Aggregator, click Create. Then click Done.
    The Designer creates the Aggregator transformation.
  3. Drag the ports to the Aggregator transformation.
    The Designer creates input/output ports for each port you include.
  4. Double-click the title bar of the transformation to open the Edit Transformations dialog box.
  5. Select the Ports tab.
  6. Click the group by option for each column you want the Aggregator to use in creating groups.
    Optionally, enter a default value to replace null groups.
  7. Click Add to add an expression port.
    The expression port must be an output port. Make the port an output port by clearing Input (I).
  8. Optionally, add default values for specific ports.
    If the target database does not handle null values and certain ports are likely to contain null values, specify a default value.
  9. Configure properties on the Properties tab.

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