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This DAL command is used to cancel pending requests whose execution has been initiated with PERFORM (see the DAL command PERFORM in chapter "Performing pending requests (PERFORM)").
This is possible so long as the DBH has not yet started executing these requests.
Following cancellation of any pending requests, transaction operation can be resumed without restriction.
Also, new requests can again be entered by means of DAL commands.
This function is useful primarily in those cases where after a PERFORM command has been entered it is determined that there are transactions that are delaying execution of the pending requests for a long period of time but that should not be rolled back.
The command does not affect any requests present for the activation or deactivation of realm or DBTT extensibility (ACT INCR, DEACT INCR, ACT DBTT-INCR, DEACT DBTT-INCR) because execution of these requests is not impeded by open transactions.