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suresh05 · Beginner Joined: 14 Sep 2005 Posts: 18 Topics: 8

Hi,

I have just a basic question.How can we identify if a file used is VSAM or not from a COBOL program. I know we can identify KSDS & RRDS from the ORGANIZATION clause in the Select statement. I am not sure about ESDS becasue the ORGANIZATION clause in the Select statement will be Sequential for VSAM & flat files.

haree_amrid · Posted: Wed Dec 21, 2005 9:39 am Post subject:

Hi Suresh,
In the COBOL program if we are using ESDS, the SELECT statement will be like this:-

suresh05 · Beginner Joined: 14 Sep 2005 Posts: 18 Topics: 8

I am not sure prefix AS- is mandatory for VSAM files. I think it will work without the AS- prefix

Phantom · Posted: Wed Dec 21, 2005 10:14 am Post subject:

Suresh05,

Please search before posting. Check this link which discusses about identifying the vsam files in a cobol program

http://www.mvsforums.com/helpboards/viewtopic.php?t=1466&highlight=vsam

Hope this helps,

Thanks,
Phantom

Phantom · Posted: Thu Dec 22, 2005 12:56 am Post subject:

Suresh05,

Also check this link for more information on the ASSIGN Clause,
http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/IGY3LR10/4.2.3?DT=20020920180651

Thanks,
Phantom