how to identify the file used in the JCL is an VSAM file.
Just seeing the JCL code how can we track the file as VSAM file?
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Answer Posted / selvam a
If the VSAM file is updated in a job, then definitely there
will be a backup step prior to the update step. The backup
can be a DASD backup (using IDCAMS utility - Repro) or a
Tape backup (using ADDRSSU utility). And if the job abends,
there will be a separate JCL to delete/define this VSAM file
and restore it from the backup taken.
So by checking these utilities presence we can make sure
that JCL has a VSAM file.
More over in our system, we differentiate a vsam file by
including a 'V' as the last character of the second
qualifier Ex: XXXX.YYYV.ZZZZ
I am not sure of the other systems.
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