"(XSCCOMP13) You cannot delete values from %j because it is an aggregated COMPRESSED COMPOSITE."
*Cause: The user tried to MAINTAIN DELETE from an aggregated
*Action: In order to perform this sort of maintenance the composite
must first be cleared. This can be done by running the
CLEAR AGGREGATES command on the variable dimensioning the
composite. Note that this will remove all data computed during
the last AGGREGATE command.