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  1. Preface
  2. Mappings
  3. Mapplets
  4. Mapping Parameters
  5. Where to Assign Parameters
  6. Mapping Outputs
  7. Generate a Mapping from an SQL Query
  8. Dynamic Mappings
  9. How to Develop and Run a Dynamic Mapping
  10. Dynamic Mapping Use Cases
  11. Mapping Administration
  12. Export to PowerCenter
  13. Import From PowerCenter
  14. Performance Tuning
  15. Pushdown Optimization
  16. Partitioned Mappings
  17. Developer Tool Naming Conventions

Developer Mapping Guide

Developer Mapping Guide

Parameters in Custom Queries for Relational Sources

Parameters in Custom Queries for Relational Sources

You can assign a parameter to the custom query for a customized data object read operation, or a relational data object in a Read transformation.
When you configure the custom query, you must create an advanced query and specify the query using a parameter.
The following image shows where you can parameterize the custom query:
This image shows the Query tab in the Properties view. The query type is Advanced. Custom query is selected. The query is specified by a parameter.

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