Re: Controlling adhoc queries

I apologize for resurrecting an old thread, but that's how long it's taken
for my article to wend its way through the hallowed halls of IBM.
Nevertheless, I'm happy to announce that it is now publically viewable at
https://ibm.co/2GSx77c. Hopefully it can be of some help to anyone who is
struggling to bring adhoc queries under control.

Tim Clark
Db2 for IBM i

From: "Timothy P Clark" <timclark@xxxxxxxxxx>
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>,
Date: 03/13/2018 10:50 AM
Subject: Re: Controlling adhoc queries
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>

Don,

Your timing is so perfect, I'd think someone were paying you... :-)

I'm at this moment working on an article describing some enhancements

that

IBM is making to the MAXTMPSTG parameter available on the
CRTCLS/CHGCLS/CHGJOB commands. These enhancements are intended to help
control runaway ad-hoc queries that use excessive temporary storage,
particularly when *SYSBAS is running low on space. You may also want to
look at the CPUTIME parameter which limits the amount of actual

processing

time a job may use.

The article about MAXTMPSTG should go live on DeveloperWorks in the next
few weeks. It will be part 3 of the series that starts here:
https://ibm.co/2tIv9QR. The 7.3. PTFs that provide the enhancement are
available right now: MF64447, MF64448, MF64449, MF64450, SI66499, and
SI66500. You'll want to read the cover letters to understand some of the
nuances of the enhancements.

Hope that helps...

Tim Clark
Db2 for IBM i