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File OPEN mode for performing DELETE operation

 
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Lavanya_Dhushetty
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Joined: 30 Aug 2007
Posts: 24
Location: Chennai

PostPosted: Mon Sep 17, 2007 4:48 pm    Post subject: File OPEN mode for performing DELETE operation
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What should be the file OPEN mode for performing DELETE operation on an Indexed file?
Answers:
a. First INPUT then OUTPUT
b. I-O
c. INPUT
d. OUTPUT
e. Either OUTPUT or I-O will do
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BalaMuraliL

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Joined: 01 Aug 2007
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PostPosted: Mon Sep 17, 2007 5:21 pm    Post subject:
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Hi Lavanya,

It's absolutely I-O mode for DELETE the records.
Ans is "b".
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Lavanya_Dhushetty
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Joined: 30 Aug 2007
Posts: 24
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PostPosted: Mon Sep 17, 2007 6:57 pm    Post subject: Reply to: About Indexed files
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Thanks for da reply

Actually I was in confusion whether it is B or E.
From the manuals it was 'B'.But the answer in my material was 'E'.So i want to clarify it.
Thanks,
Lavanya
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dick scherrer

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Joined: 23 Nov 2006
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Location: Inside the Matrix

PostPosted: Mon Sep 17, 2007 7:45 pm    Post subject:
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Hello,

I suppose records might be deleted without being read first, but it is not a practice i'd use. Usually, when deletes are done, some information (audit trail) is written about the records being deleted.

Where was your material written and how was output only explained?
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CICS Guy

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Joined: 18 Jul 2007
Posts: 2150
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PostPosted: Mon Sep 17, 2007 7:51 pm    Post subject:
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As the FM point out: When the DELETE statement is executed, the associated file must be open in I-O mode.
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