Table of Contents

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  1. Preface
  2. Data integration tasks
  3. Mapping tasks
  4. Dynamic mapping tasks
  5. Synchronization tasks
  6. Data transfer tasks
  7. Replication tasks
  8. Masking tasks
  9. Masking rules
  10. PowerCenter tasks

Tasks

Tasks

Mapping tasks

Mapping tasks

Use the
mapping
task to process data based on the data flow logic defined in a mapping
or Visio template
.
When you create a
mapping
task, you select the mapping
or Visio template
for the task to use. The mapping
or Visio template
must already exist before you can create a
mapping
task for it. Alternatively, you can create a
mapping
task using a template.
A Visio template includes template parameters for the source and target connections. A Visio template can also include other template parameters, such as filter conditions or lookup connections.
If the mapping includes parameters, you can define the parameters when you configure the task or define the parameters when you run the task. You can use user-defined parameters for data filters, expressions, and lookup expressions in a
mapping
task. You define user-defined parameters in a parameter file associated with the task.
At run time, a
mapping
task processes task data based on the data flow logic from the mapping
or Visio template
, the parameters defined in the task, and the user-defined parameters defined in a parameter file, when available.

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