Dropping IDICNFxx parmlib member data set specifications
It is possible to drop all data set specifications for a given DDname specified in the IDICNFxx parmlib member by using the special data set name, -DROPCNF-.
If, for example, the IDICNFxx parmlib member contained:
DataSets(IDILCOB(FRED.L1,FRED.L2))
and
an IDIOPTS user-options file contained:
DataSets(IDILCOB(FRED.L3,-DROPCNF-,FRED.L4))
then
the final logical concatenation of data sets for the IDILCOB DDname would be: IDILCOB DD DISP=SHR,DSN=FRED.L3
DD DISP=SHR,DSN=FRED.L4
Note that the -DROPCNF- data set name can be specified anywhere
that a DataSets option can be specified. It can, however, not be provided by an Analysis Control user
exit.