Purpose
Deletes entries in TPRI_PAR that no background job refers to anymore.

Activities
Indicate a maximum age. Any background job that is older than this isselected. The system collects any references they make to TRPI_PAR.
Then the system deletes all entries (application "B") from TRPI_PARthat are older than the specified maximum age and not contained in thecollection. The system only deletes entries from TPRI_PAR that nobackground job refers to anymore.