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  1. Preface
  2. Mappings
  3. Parameters
  4. CLAIRE recommendations
  5. Data catalog discovery
  6. Visio templates

Mappings

Mappings

Mapping revisions and mapping tasks

Mapping revisions and
mapping
tasks

You might need to update a mapping that is used in a
mapping
task.
When you update a mapping used in a
mapping
task, the
mapping
task uses the revised mapping. If you change the mapping so that the
mapping
task is incompatible with the mapping, an error occurs when you run the
mapping
task.
For example, you add a parameter to a mapping after the
mapping
task was created and you do not update the
mapping
task to specify a value for the parameter. When you run the
mapping
task, an error occurs.
If you do not want your updates to affect the
mapping
task, you can make a copy of the mapping, give the new mapping a different name, and then apply your updates to the new mapping.