There might be situations when you need to create a new transformation based on the mappings defined in an existing transformation. In such situations, you can create a duplicate of that transformation and customize its mappings to suit your requirement.
To create a duplicate of a transformation, do the following steps:
From the Transformation View, select the transformation that you want to create a duplicate of.
Note: You can select multiple transformations at a time by pressing the Ctrl key.
Right-click and select Duplicate.
A duplicate copy of the selected transformation appears in the Transformation View. For example, if you create a duplicate of a transformation with the name SalesData, a duplicate copy of the transformation appears with the name Duplicate of SalesData. If you create a duplicate of SalesData again, the next duplicate copy of the transformation appears with the name Duplicate(2) of SalesData, and so on.
You can create any number of duplicates of a transformation. Duplicated transformations include all the classifier mappings, feature mappings, and associated expressions of the original transformation. However, the transformation ID of each duplicated transformation is different.
If you create a duplicate of a transformation that is not saved, the unsaved changes are not duplicated.
Note: DDW treats the duplicated transformation as a new transformation. Therefore, the deployment version of the transformation is initialized to 0, irrespective of the number of times the original transformation was deployed.