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

Filtering Lookup Source Rows

Filtering Lookup Source Rows

Add the lookup source filter to limit the number of lookups that the Integration Service performs on a relational lookup source.
  1. In the Mapping Designer or Transformation Developer, open the Lookup transformation.
  2. Select the
    Properties
    tab.
  3. Verify that caching is enabled.
  4. Click the
    Open
    button in the
    Lookup Source Filter
    field.
  5. In the SQL Editor, select the input ports or enter any Lookup transformation port that you want to filter.
  6. Enter a filter condition.
    Do not include the keyword WHERE in the filter condition. Enclose string mapping parameters and variables in string identifiers.
  7. To validate the condition, select the ODBC data source that has the source included in the query.
  8. Enter the user name and the password to connect to this database.
  9. Click
    Validate
    .
    The Designer runs the query and reports whether its syntax is correct.

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