Use the Call instruction with the Data-Decision-DDF-RunOptions.pxOverwriteDestination activity to overwrite the destination and create nested data flow chains. When calling this method, the modified data flow is validated before execution.
Create an instance of the Activity rule by selecting Activity from the Technical category.
In the activity steps, use the Call Data-Decision-DDF-RunOptions.pxOverwriteDestination method.
Click the arrow to the left of the Method field to expand the method and specify its parameters:
The applies to class of the instance used as source. By default, it is the applies to class of the data flow.
Name of the instance that you want to use as the destination.
Destination type (Data set or Data flow). By default it is data set.
Additional parameters used in nested data flow chains:
Parameter to identify the applies to class of a data flow that is not the one defined in the RunOptions page.
Parameter to run a data flow that is not the one defined in the RunOptions page.
For database data set: Select the DoDestinationUpdate check box to update the destination data set (by default, the operation is insert). Other type of data sets or destinations ignore the value set in this parameter.
Shape ID (the pyMOID of the shape) that you are going to overwrite.
Click Save.