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Regarding Sort VSAM into vsam/flat file.

 
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sid_aec

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Joined: 01 Jul 2008
Posts: 60
Location: Kolkata

PostPosted: Thu Apr 22, 2010 11:54 pm    Post subject: Regarding Sort VSAM into vsam/flat file.
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Hi,
I am confused over the below point:

One VSAM KSDS using DFSORT I am copying into a Flat file which is FB, then Input VSAM is considered as FB.
I can use INCLUDE COND=(1,1,CH,EQ,C'A')

Same VSAM using DFSORT copying into another empty vsam then Input VSAM is considered as VB.
I can use INCLUDE COND=(5,1,CH,EQ,C'A')

Now my confusion is how same physical data can be at two different bytes in two cases?Could you please put some light how internal processing happens?

Thanking you as always.
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dick scherrer

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Joined: 23 Nov 2006
Posts: 19270
Location: Inside the Matrix

PostPosted: Fri Apr 23, 2010 12:00 am    Post subject:
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Hello,

When using a vb dataset, you must add 4 for the record descriptor word (rdw). FB files do not have an rdw.

This is true for both qsam and vsam files.
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CICS Guy

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Joined: 18 Jul 2007
Posts: 2150
Location: At my coffee table

PostPosted: Fri Apr 23, 2010 12:05 am    Post subject: Re: Regarding Sort VSAM into vsam/flat file.
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sid_aec wrote:
Now my confusion is how same physical data can be at two different bytes in two cases?Could you please put some light how internal processing happens?
Read about in the manual, for example: You can have DFSORT process VSAM records as fixed-length (F) or variable-length (V). When you use VSAM input, DFSORT selects fixed-length processing if you specify RECORD TYPE=F or variable-length processing if you specify RECORD TYPE=V.
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