Developer Mapping Guide

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Defining Mapping Outputs

Create a mapping and define the mapping outputs in the mapping

Properties

. Each mapping output definition describes what type of aggregation to perform and the data type of the results.

After you create a mapping, click the editor to access the mapping

Properties

Click the

Outputs

view.

Click

New

to create a mapping output.

The Developer tool creates a mapping output with default field values.

The following image shows the mapping output default values in the

Outputs

view:

Change the name that identifies the mapping output.

Select a numeric or date mapping output type. Enter the precision and scale.

Choose the aggregation type for the mapping output.

You can summarize the output expression or you can find the minimum or maximum expression value that the mapping processed. Default is SUM.

Click

File

Save

to save the mapping output.

You must save the mapping output before you can create a mapping output expression in the Expression transformation.

The following image shows a mapping output that contains the sum of a decimal field and a mapping output that contains a maximum date value: