"E1 8 DSS10065E PARAMETER 'OVERLAY' IS UNIDENTIFIED."
This is NOT a DFSORT error message. I don't know what 'jj' does but it may not understand DFSORT's control statements. Make sure OPTION and INREC statement in column 2, not column 1
. I don't know if that will satisfy whatever program gave that error, but it's worth a try. OVERLAY is, of course, recognized by DFSORT. Seems like something else is getting in the way.
can I know what is the importance of 'C' in INREC OVERLAY=(3:C'COBOL ') is it the same 'C' if we want to replace specific columns with numbers (apart from characters (like COBOL)).
C means character string. DFSORT can handle constants for many types of "numbers" (ZD, PD, BI, FI, etc). How you would code a constant for a specific number depends on the format of the number. For example if you wanted to use a constant of PL5'12345', you could code it as:
You'll need to be more specific about the type of number constant you want before I can provide more specific help.