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VSAM file compare using FILEAID JCL

 
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smita257

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Joined: 02 Aug 2010
Posts: 1
Location: Kolkata

PostPosted: Sun Feb 24, 2013 1:28 am    Post subject: VSAM file compare using FILEAID JCL
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Hi,

I am trying to compare VSAM(RRDS) files using Fileaid JCL but it's throwing the return code of RC08. The output comapre dataset which got created is showing the below error message:

U329-READ AHEAD COUNT LIMIT WAS EXCEEDED BEFORE A MATCH WAS FOUND

Otherwise this output compare dataset is also showing the compare statistics between the 2 VSAM files of matching and mis matching records.

The FILEAID compare Parmlib I am using is :
$$DD01 COMPARE

Can you please guide to a solution to get RC =0?
Please let me know if any further info is required.
Appreciate your quick help.

Thank You!
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Bill Woodger

DFSORT Moderator


Joined: 09 Mar 2011
Posts: 7308

PostPosted: Sun Feb 24, 2013 1:51 am    Post subject: Reply to: VSAM file compare using FILEAID JCL
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You have a record on one of the files, and it has not matched on the second file, and FILE-AID has then searched forward as far as you have told it to find a match for that record, and failed to find one.
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PeterHolland

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Joined: 27 Oct 2009
Posts: 2431
Location: Netherlands, Amstelveen

PostPosted: Sun Feb 24, 2013 1:17 pm    Post subject:
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The default read ahead count is 100, it is possible to set it to 999 (see the manual). I dont think that will be of much help, cause your rrds datasets are not sorted and then what happens is what Mr. Woodger said.
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