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

Session Processing

Session Processing

The Integration Service can insert and update rows in the dynamic lookup cache based on expression results. The expression results might vary based on whether the lookup port value is NULL and is included in the expression.
When you enable Insert Else Update, the Integration Service inserts a row with the expression result if the data is not in the cache. The lookup port value is NULL when data does not exist in the cache. If the expression refers to the lookup port value, the Integration Service substitutes the default port value in the expression. When you enable Insert Else Update and the data exists in the cache, the Integration Service updates the cache with the expression result.
When you enable Update Else Insert, the Integration Service updates the cache with the expression result if the data exists in the cache. When the data does not exist in the cache, the Integration Service inserts a row that contains the expression result. If the expression refers to a lookup port value, the Integration Service substitutes the default port value in the expression.
If you configure the Lookup transformation to synchronize dynamic cache, the Integration Service inserts a row into the lookup cache with the expression result. It inserts a row into the lookup source with the expression result.

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