Flags records for rejection in an update strategy expression. DD_REJECT is equivalent to the integer literal 3.
Use the DD_REJECT constant in the Update Strategy transformation only. Use DD_REJECT instead of the integer literal 3 to facilitate troubleshooting complex numeric expressions.
When you run a workflow, select the data-driven update strategy to reject records from a target based on this flag.
Use DD_REJECT to filter or validate data. If you flag a record as reject, the
PowerCenter Integration Service
skips the record and writes it to the session reject file.