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Sort features on VSAM file

 
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prabs2006

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Joined: 12 Jan 2006
Posts: 103

PostPosted: Mon Feb 27, 2006 12:03 pm    Post subject: Sort features on VSAM file
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Hi,

Is it possible for us to perform all sort features on a VSAM file?

T & R
Prabs
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priyesh.agrawal

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Joined: 28 Mar 2005
Posts: 1452
Location: Chicago, IL

PostPosted: Mon Feb 27, 2006 5:37 pm    Post subject: Re: Sort features on VSAM file
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Prabs,

I have been using VSAM files with SORT ... are you asking for any perticular SORT feature....

Regards,

Priyesh.
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prabs2006

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Joined: 12 Jan 2006
Posts: 103

PostPosted: Mon Feb 27, 2006 6:22 pm    Post subject:
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No. I have just asked generally. So whatever sort features applied to flat file can be applied for VSAM file, right?

T & R
Prabs
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Pollyannaish

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Joined: 09 Jul 2005
Posts: 31
Location: Pune, India

PostPosted: Mon Feb 27, 2006 7:01 pm    Post subject:
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Ya prabs

you are right but it is just that you can't concatenate VSAM files while sorting as you can do with sequential files icon_biggrin.gif .
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Frank Yaeger

DFSORT Moderator


Joined: 15 Feb 2005
Posts: 7130
Location: San Jose, CA

PostPosted: Mon Feb 27, 2006 10:00 pm    Post subject:
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Quote:
I have just asked generally. So whatever sort features applied to flat file can be applied for VSAM file, right?


If you're asking about DFSORT control statements and parameters, the answer is generally yes. However, there are some DFSORT parameters specifically for VSAM files such as VSAMIO, RESET, CINV and VSAMEMT.

You also have the option of processing VSAM input files as variable-length or fixed-length.

See the following for more information:

http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/ICE1CA10/1.8.3.4?SHELF=&DT=20050222160456&CASE=

Quote:
you can't concatenate VSAM files while sorting as you can do with sequential files


True, but note that's a system restriction, not just a DFSORT restriction.
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prabs2006

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Joined: 12 Jan 2006
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PostPosted: Tue Feb 28, 2006 11:41 am    Post subject:
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So how about the output file then? I believe it would be already created and defined. What will be the properties given?(disp=shr) Can you please give me a sample example (to copy or extract some recs)?

Also I would like to know whether the properties of both the input and output files shud be strictly same?

T & R
Prabs
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prabs2006

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Joined: 12 Jan 2006
Posts: 103

PostPosted: Tue Feb 28, 2006 11:49 am    Post subject:
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I think I shud make myself clear with my Q in the previous post.

What would be the output file(a FLAT or VSAM file?) when sorting an input VSAM file? Is it possible to give a vsam file in the output?

Please bear with me if am going awfully wrong.Thanks

T & R
Prabs
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Rupesh.Kothari

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Joined: 27 Apr 2005
Posts: 464

PostPosted: Tue Feb 28, 2006 12:15 pm    Post subject: Re: Sort features on VSAM file
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HI,

Quote:
What would be the output file(a FLAT or VSAM file?) when sorting an input VSAM file? Is it possible to give a vsam file in the output?


I believe, output file should be flat file.

Regards
Rupesh
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Frank Yaeger

DFSORT Moderator


Joined: 15 Feb 2005
Posts: 7130
Location: San Jose, CA

PostPosted: Tue Feb 28, 2006 9:28 pm    Post subject:
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You decide whether the output file will be a VSAM file or non-VSAM file by specifying the appropriate SORTOUT DD statement. If you want a non-VSAM file, DFSORT will fill in the attributes. If you want a VSAM file, you have to define the attributes in the normal way

Quote:
Also I would like to know whether the properties of both the input and output files shud be strictly same?


Again, that's up to you. For example, you could use OUTREC to change the length of the output records.
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