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How to update the flat file throgu cobol85

 
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prashant.k.gupta

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Joined: 08 Oct 2007
Posts: 6
Location: Pune

PostPosted: Wed Feb 13, 2008 3:23 pm    Post subject: How to update the flat file throgu cobol85
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Hi,
i want to update the flat file having last run date.
for every run i want to update the date in the flat file.
could any one help me, how to code it?
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agkshirsagar

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Joined: 27 Feb 2007
Posts: 685
Location: Earth

PostPosted: Wed Feb 13, 2008 3:51 pm    Post subject:
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where's the problem in this? open the file in I-O mode, read and rewrite.. simple enough.. isn't it?
Do let me know if there is more to this requirement which you didn't mention in your post.
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Vinoth Kumar P

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PostPosted: Wed Feb 13, 2008 4:03 pm    Post subject: Reply to: How to update the flat file throgu cobol85
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If you have any date files, you will surely have the last run date or last business day field in the file. If you have it, then use that date subroutine in the program to get the last run date from that file.
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Vinoth Kumar P

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PostPosted: Wed Feb 13, 2008 4:07 pm    Post subject: Reply to: How to update the flat file throgu cobol85
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for every run do you want to update the last run date or current date in the flat file?
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dick scherrer

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Joined: 23 Nov 2006
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PostPosted: Wed Feb 13, 2008 8:59 pm    Post subject:
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Hello,

It is almost always bad design to update flat files "in place".

If there are any problems, the file is lost. A better practice is to read the existing file and create a new file with the required update(s).
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