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How to Perform XSUM Deduplication

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XSUM is a mainframe/JCL sort deduplication function that writes each first record with a unique key value to one target, and writes any subsequent duplicate-keyed records to another target.

This functionality can be achieved in DMExpress using cross-record logic via conditions and user defined values in a sort task.


The attached example demonstrates how to implement the XSUM function in DMExpress.

Attachments, compatible with DMExpress version 8.0.5 or higher

Additional Information

For more information on user defined values, see User defined values and functions in the DMExpress Help.

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