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  • Common Content for Data Engineering 10.2.1
  • All Products

Table of Contents

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

Developer Mapping Guide

Developer Mapping Guide

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Persisting Mapping Outputs

Persisting Mapping Outputs

After you add the mapping to a workflow, you can persist mapping outputs from the Mapping task. You can use persisted mapping outputs as input to the Mapping task the next time it runs.
  1. Add the mapping to a workflow to create a Mapping task.
  2. Click the Mapping task icon in the workflow to view the Mapping task
    Properties
    .
  3. Click the
    Persistence
     view.
    A list of the user-defined mapping outputs appears in the
    Persistence
     view.
    The Persistence view lists the mapping outputs that you can persist in a Mapping task. The image show the Total Order Amount and the Last Order Date mapping outputs. The Persist column contains a check box. The Aggregation Function column and the Description column is empty for each mapping output.
  4. Enable
    Persist
     to save the mapping output after the Mapping task runs.
  5. Optionally, change the aggregation type and enter the description.
    The following image shows the Persistence view for a Mapping task:
    The image shows the Persistence view for the Mapping Task. The Persist check box is enabled for the Last Order Date mapping output. The Aggregate Function is MAX.
    The Last_Order_Date mapping output is persisted. The aggregate function is MAX, so the Data Integration Service saves maximum order date value in the repository.
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