RE: Difference bet. Primary and Full procedural file.

While you  avoid it like the plague I like and use both methods.  On a
recent assignment I was asked to not use the cycle because none of the new
people understood it.

I was able to replace 4 simple lines of I-specs (L1 & M1) with several
layers of ReadE-loops in the calc specs.  What is really a mainline of under
10 lines became 30+ lines.

I'd agree that people avoid it like the plague, but that is fear of the
unknown and has no basis in complexity.

when you need to process a lot of records and performance is an issue
UpdatePrimary with no K was, for many years, unbeatable.  Lately I have
heard that's no longer true but I do not have facts for either case.

(Just testing
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-------Original Message-------

From: rpg400-l@midrange.com
Date: Wednesday, May 22, 2002 08:38:03
To: rpg400-l@midrange.com
Subject: RE: Difference bet. Primary and Full procedural file.

Dan,

I take it the key phrase here is "fr those who know how to use it".

I for one try to avoid cycle processing as the plague. As do most of the
RPG programmers I know.

Peter





"Dan Bale" <dbale@samsa.com&gt;@midrange.com on 22/05/2002 14:17:47
Please respond to rpg400-l@midrange.com
Sent by: rpg400-l-admin@midrange.com

To: <rpg400-l@midrange.com>

cc:

Subject: RE: Difference bet. Primary and Full procedural file.


There *are* other reasons, Mike. <g>

Level break processing, which is available only for primary file processing
(i.e., using the RPG cycle), can be a godsend for those who know how to use
it. While it is possible to write the code to do this (my favorite:
JDEdwards S002 subroutine!), RPG's internal level break processing can save
a lot of coding and mistakes.

- Dan Bale
(I am *NOT* "Dale"
http://archive.midrange.com/midrange-l/200105/msg00281.html )
SAMSA, Inc.
989-790-0507
DBale@SAMSA.com <mailto:DBale@SAMSA.com>
Quiquid latine dictum sit altum viditur.
(Whatever is said in Latin seems profound.)

-----Original Message-----
From: rpg400-l-admin@midrange.com [mailto:rpg400-l-admin@midrange.com]On
Behalf Of Mike.Collins@syan.co.uk
Sent: Wednesday, May 22, 2002 7:18 AM
To: rpg400-l@midrange.com
Subject: Re: Difference bet. Primary and Full procedural file.



A file designed as input primary (or indeed secondary) is read using the
RPG cycle, that is you do not and indeed cannot issue your own reads or
chains to that file. A file designed as fully procedural means that you
control the reading of that file. In the very early days of RPG the cycle
was the only way to process a file, and this function still remains in
"modern" RPG, however it is rarely used these days, in fact most RPG
programmers will have NEVER used it at all, though some people on this list
still use it on occasion, as it is in theory quicker to read a file in
using the cycle than to code it yourself.

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