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SHANKS · Beginner Joined: 04 Jul 2007 Posts: 2 Topics: 2

I had used subscripts in application programming.I had never used indexes.I wanted to know what are indexes and what are its advantages?

dbzTHEdinosauer · Posted: Sun Jul 08, 2007 9:49 am Post subject:

Here is a link to the COBOL documentation which has a rather good write-up.
In addition, the page discusses other topics.

If this page does not answer all your questions, use the Search feature.
Though this is Enterprise COBOL documentation, what is said here applies to all IBM COBOL.
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jajularamesh · Beginner Joined: 14 Apr 2006 Posts: 87 Topics: 33

Hi Shanks,

Indexes are like register variables in C.Register variables uses Registers for storage which are accessble very fast.

So in other languages especially for looping Register/ Indexed variables are used.

Using index variables over subscript variables improves the performance.

Regards,
Ramesh

kolusu · Posted: Mon Jul 09, 2007 7:41 am Post subject:

SHANKS,

Check these links

http://www.mvsforums.com/helpboards/viewtopic.php?t=3975&highlight=index

http://www.mvsforums.com/helpboards/viewtopic.php?t=1583&highlight=index

Kolusu
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