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

Mappings

Mappings

Mapping data preview

Mapping data preview

When you create a mapping, you can preview data for individual transformations to test the mapping logic.
To preview mapping data, your organization must have the appropriate license.
You preview data for a transformation on the
Preview
panel of the transformation. Select the number of source rows to process and the runtime environment that runs the preview job.
When you run a preview job,
Data Integration
creates a temporary mapping task that contains a virtual target immediately downstream of the selected transformation.
Data Integration
discards the temporary task after the preview job completes. When the job completes,
Data Integration
displays the data that is transformed by the selected transformation on the
Preview
panel.
The following image shows the
Preview
panel of a Sorter transformation after you run a preview job on the transformation:
The mapping contains Source, Filter, Sorter, and Target transformations. The Sorter transformation is selected, and the Preview panel is displayed. The Preview panel shows the rows of data that have been processed by the Filter and Sorter transformations.
To preview data in a mapping, you must have the Data Integration Data Previewer role or your user role must have the "Data - preview" feature privilege for
Data Integration
.
You can preview data if the mapping uses input parameters.
Data Integration
prompts you for the parameter values when you run the preview.
You cannot preview data when you develop a mapplet in the Mapplet Designer. You cannot preview data that contains special, emoji, and Unicode characters in the table name.
Elastic and non-elastic mappings provide some different preview behaviors.