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how to read a ps file from bottom to top

 
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perarasan

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Joined: 28 Sep 2006
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Location: chennai

PostPosted: Thu Sep 28, 2006 10:08 pm    Post subject: how to read a ps file from bottom to top
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is it possible to read the ps file from bottom to top using the cobolo programming...
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MFRASHEED

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Joined: 14 Jun 2005
Posts: 186
Location: USA

PostPosted: Thu Sep 28, 2006 10:26 pm    Post subject: Re: how to read a ps file from bottom to top
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Why would you want to do that?

I would suggest:
If there is no single key in your file which can reverse order of records, use SORT to add Seqnum and sort on seqnum to reverse record order of records.

One other way i can think of which is not efficient way if file is big or volume is high would be read file in a Working Storage table, then process from table way you want.
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DavidatK

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Joined: 22 Nov 2005
Posts: 700
Location: Troy, Michigan USA

PostPosted: Thu Sep 28, 2006 10:44 pm    Post subject: Re: how to read a ps file from bottom to top
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No, you cannot read a file from the back to the front using native cobol.

See this Previous post

If the file is sorted in a different order then read, the file is still being read from front to back, If its read into a table, still its being read front to back.

Dave
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Kevin

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Joined: 25 Aug 2005
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PostPosted: Fri Sep 29, 2006 9:56 pm    Post subject: Re: how to read a ps file from bottom to top
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I wonder why folks continue to find it necessary to post this question at least once a week?
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