RE: Improve SQLRPGLE performance

Peter,

You might try a DDS logical with the date portion of the timestamp defined as a 
separate field.

Another option is to use the SQL analyzer in Ops Navigator to analyze your 
statement.  If you have used debug I don't think this will give any different 
information.

Rick

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx]On Behalf Of Peter Colpaert
Sent: Wednesday, August 04, 2004 3:05 AM
To: RPG400-L@xxxxxxxxxxxx
Subject: Improve SQLRPGLE performance


Hi group,

I made an inquiry SQLRPGLE program where I have to do a count of records 
in a file, whereby one of the group-by fields is the date portion of a 
timestamp field.  The data is presented in a panelgroup application.

The performance, when running in production over a 600.000-record file, is 
very VERY bad.

When I debug the program, it says that arrival sequence is used to build 
the access path.

Is there a way to improve the performance, such as by creating an index 
that has only the date portion of the timestamp field?

Thanks in advance.

Peter Colpaert
iSeries Application Developer

Honda Europe NV
Langerbruggestraat 104
B-9000 GENT
Belgium
Peter.Colpaert@xxxxxxxxxxxx
Tel: +32 9 2501 334
Fax: +32 9 2501 231
----------
Yoda of Borg are we: Futile is resistance. Assimilate you, we will.
----------


The information contained in this communication is confidential and may be 
legally privileged. It is intended solely for the use of the individual or the 
entity to whom it is addressed and others authorised to receive it. If you have 
received it by mistake, please let the sender know by e-mail reply and delete 
it from your system.
If you are not the intended recipient you are hereby notified that any 
disclosure, copying, distribution or taking any action in reliance of the 
contents of this information is strictly prohibited and may be unlawful.
Honda Europe NV is neither liable for the proper and complete transmission of 
the information contained in this communication nor for any delay in its 
receipt.    
--
This is the RPG programming on the AS400 / iSeries (RPG400-L) mailing list
To post a message email: RPG400-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/rpg400-l
or email: RPG400-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/rpg400-l.