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English
  • Common Content for Data Engineering 10.2.2
  • All Products

Table of Contents

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  1. Preface
  2. Workflows
  3. Workflow Variables
  4. Workflow Parameters
  5. Cluster Tasks
  6. Command Task
  7. Human Task
  8. Mapping Task
  9. Notification Task
  10. Gateways
  11. Workflow Recovery
  12. Workflow Administration

Developer Workflow Guide

Developer Workflow Guide

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Configuring a Mapping to Run an SQL Command

Configuring a Mapping to Run an SQL Command

To support a complete restart of a mapping that writes to a relational target, write an SQL command that the Data Integration Service runs to delete target rows before it reads the source.
  1. Select the Mapping task in the editor.
  2. In the
    Properties
     view, click the
    General
     tab.
  3. Click the name of the mapping that the task runs.
    The mapping opens.
  4. Select the relational data object in the editor.
  5. In the
    Properties
     view, click the
    Advanced
     tab.
  6. In the
    Value
     column for the
    PreSQL
     property, click the
    Open
     button.
    The
    SQL Query
     editor appears.
  7. Enter an SQL command and then click
    OK
    .
    The Developer tool does not validate the SQL.
    The following figure shows an SQL command that deletes all rows written today from the table named DEPT:
  8. Click
    File
    Save
     to save the mapping.
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