W dniu 2012-02-07 23:22, Bill Fairchild pisze:
> You listed the only two things supported by IBM in its operating
> system. There is also an unknown number of user applications with
> files that have keys, which could be BSAM, BDAM, or BPAM (PDS with
> keys in its members and not just in its directory). IBM no longer
> supports ISAM, but there may still be some ISAM files that are being
> used somehow. And long, long ago the operating system used a
> dataset named PASSWORD that was unblocked with keys. The ancient
> system catalog structure with 8-byte keys has been replaced by
> VSAM structures.
Yes, I listed only two things supported, but you did not add anything
else which is SUPPORTED. ISAM datasets, PASSWORD - those things are dead
now.
User applications? Well, there still can be user applications using
ISAM... but usage of ISAM is *impossible* on current systems. Existing
ISAM files can be deleted - the only support for ISAM. AFAIK The
application can still work with VSAM files, using IIP. Of course that
means no KEY of CKD.
--
Radoslaw Skorupka
Lodz, Poland
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