RE: Improve SQLRPGLE performance

[<Rick.Chevalier@xxxxxxxxxxxxxxx>]

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
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