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To me, it would be more intuitive to use the retrieve pointer to User
Space Api and use QSORT from there. Just me. 

Mark Walter
Senior Programmer/Analyst
Hainey Business Systems
(717) 718-9601 x7148
mwalter@xxxxxxxxxxx
http://www.hbs-inc.com
 

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of
Rick.Chevalier@xxxxxxxxxxxxxxx
Sent: Tuesday, September 13, 2005 2:49 PM
To: rpg400-l@xxxxxxxxxxxx
Subject: RE: Sorting a user space


Rob,

It may be a matter of preference but I would suggest using QSORT. 

I recently wrote an application with a subfile of customer payment
history.  Some of the history runs into hundreds of records.  The
subfile can be sorted on any of about five different columns.  I'm not
sure if I even figured out how to solve it using an array and a user
index would have to be rebuilt for every sort.  The way I handled it is
when the subfile is loaded I also load each record into a user space.
When the user requests a sort a procedure determines which column to
sort on and calls QSORT.  There is an additional procedure to handle the
actual high, low, equal logic for QSORT.  The entries are then read from
the user space back into the subfile.  Very fast and simple.

If you are only sorting on one value the array approach would work just
fine.  I'm now a believer in using QSORT when there could be varying
sort criteria.

Rick

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx]On Behalf Of rob@xxxxxxxxx
Sent: Tuesday, September 13, 2005 1:34 PM
To: RPG programming on the AS400 / iSeries
Subject: RE: Sorting a user space


I don't see how that would be any easier, or more effective.

Rob Berendt
--
Group Dekko Services, LLC
Dept 01.073
PO Box 2000
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com


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