× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.

Chances are that native I/O will still outperform but why not test it if you are concerned.

Basically one of the most =frustrating things for the database folks is that much of what they do to improve performance will also benefit native I/O so they are constantly chasing a moving target!

Jon Paris

On Nov 9, 2021, at 1:49 PM, Alan Cassidy <cfuture@xxxxxxxxxxx> wrote:

i'm using SQL to get the maximum value for a field meeting key field WHERE comparisons into an RPG variable.

I'm replacing code that used the SETGT with READPE to find the maximum value.

I'm wondering which method shows better performance if somebody knows. I was told once that single-value CHAIN trumps using SQL to get one value for one composite key. But time has passed and IBM keeps on juicing up the SQL engine...

-Alan Cassidy

This is the RPG programming on IBM i (RPG400-L) mailing list
To post a message email: RPG400-L@xxxxxxxxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: https://lists.midrange.com/mailman/listinfo/rpg400-l
or email: RPG400-L-request@xxxxxxxxxxxxxxxxxx
Before posting, please take a moment to review the archives
at https://archive.midrange.com/rpg400-l.

Please contact support@xxxxxxxxxxxxxxxxxxxx for any subscription related questions.

Help support midrange.com by shopping at amazon.com with our affiliate link: https://amazon.midrange.com

As an Amazon Associate we earn from qualifying purchases.

This thread ...


Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2023 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.