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Questions about INREC and OUTREC

 
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bipinpeter

Active User


Joined: 18 Jun 2007
Posts: 208
Location: Cochin/Kerala/India

PostPosted: Sat Mar 29, 2008 12:42 pm    Post subject: Questions about INREC and OUTREC
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I've a question regarding the INREC and OUTREC usage. What is the basic difference between inrec and outrec?
Which is more cost effective? and why?
How do inrec and outrec internally work?

Regards,
Bipin Peter
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Frank Yaeger

DFSORT Moderator


Joined: 15 Feb 2005
Posts: 7130
Location: San Jose, CA

PostPosted: Sat Mar 29, 2008 8:54 pm    Post subject:
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Quote:
What is the basic difference between inrec and outrec?


INREC and OUTREC perform the same functions, but at different points in DFSORT processing.

INREC reformats records before they are copied, merged or sorted.

OUTREC reformats records after they are copied, merged or sorted.

They are essentially interchangeable unless you need the records reformatted before sorting rather than after sorting (use INREC) or after sorting rather than before sorting (use OUTREC).

Quote:
Which is more cost effective? and why?


For a situation where you can significantly reduce the size of the records before they are sorted, INREC can be more cost effective then OUTREC since the less bytes you need to sort, the more efficient the sort is.

Quote:
How do inrec and outrec internally work


That's proprietary information
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