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Opening a dynamic file

 
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arien

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Joined: 02 Nov 2006
Posts: 43
Location: London

PostPosted: Tue Mar 04, 2008 7:30 pm    Post subject: Opening a dynamic file
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Hi all,

I have an experiment in hand. I have a list of files with the same record structure which I need to open and perform the same task with.

My idea of going about this is as below:
1) Have an input parameter file that contains file locations along with file name. The record structure will be an X(80) and will contain data per row as:
c:\My Data\newfile.dat
d:\My Data\newfile2.dat

2) Open the input file within my program, read first record, open the file mentioned and start my processing.

My query is regarding the mapping from Logical to physical file name as I am aiming that to be dynamic. Can I achieve this dynamicism in my program? Any other suggestion ? I would like my input paramter file to be dynamic?
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Devzee

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Joined: 20 Jan 2007
Posts: 684
Location: Hollywood

PostPosted: Tue Mar 04, 2008 7:53 pm    Post subject:
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In which programming languauge you are experimenting.
Are you using PC or Unix COBOL or Mainframe COBOL?
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arien

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Joined: 02 Nov 2006
Posts: 43
Location: London

PostPosted: Tue Mar 04, 2008 8:49 pm    Post subject:
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Hi Devzee,

It is basically VMS cobol. It is fairly similar to mainframe cobol. Moreover we're working on flat files, if that is of relevance :-)
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arien

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Posts: 43
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PostPosted: Tue Mar 04, 2008 9:51 pm    Post subject:
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Hi all,

Any pointers?


Cheers,
arien icon_lol.gif
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enrico-sorichetti

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Joined: 14 Mar 2007
Posts: 10310
Location: italy

PostPosted: Tue Mar 04, 2008 11:37 pm    Post subject: Reply to: Opening a dynamic file
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a search on "VMS COBOL"
pointed to the HP(R) VMS cobol main documentation page
http://h71000.www7.hp.com/doc/cobol.html
and from here to the HP cobol reference manual
http://h71000.www7.hp.com/doc/82final/6296/6296pro.html

You could have done it Yourself with very little effort

and looking at the fd section guess it looks like the value of id clause might satisfy Your need
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