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Jerry,

As mentioned earlier, this request is NOT referring a record address file, as would be typically generated by FMTDTA (or by #GSORT). Rather it's referring to a technique where you can specify one or more ranges of keys to process via a "limits" file.

This has nothing to do with conserving disk space. Other methods require a lot more code and end up being quite messy when dealing with many ranges of records to select.

-mark


At 5/1/09 08:15 AM, you wrote:
As someone else said, if we each had $100 to spend on RPG enhancements, this would not garner $1.

Old programs that use RAF still work. If anyone is creating new programs with RAF, they need to move into the 21st century.

I loved and used RAF's on the /36 because we were limited by disk space. Today there are more viable options (LF's and SQL DDM just to name two).

Jerry C. Adams
IBM System i Programmer/Analyst
--
B&W Wholesale
office: 615-995-7024
email: jerry@xxxxxxxxxxxxxxx


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of M. Lazarus
Sent: Thursday, April 30, 2009 8:38 PM
To: RPG programming on the IBM i / System i
Subject: Re: Update primary filre

Barbara,

That means that it's more difficult to generate the limits file and
the key lengths need to be hardcoded in the program(s) using it.

Is there any technical barrier to implementing it "properly"?

-mark


At 4/30/09 09:21 PM, you wrote:
>Jeff Young wrote:
> > ... A Limits file was a file that had a record length of exactly
> > twice the length of the key of the file to be processed. This file
> > contained a From and To key to be processed. The data in this file
> > would be used by the system to read all records in the group
> > represented by the From and To keys. AFIK, this method of processing
> > is only valid for program defined files.
> >
>
>The file to be processed can be an externally-described file (both RPG
>III and RPG IV). The limits file does have to be program defined.

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