March 2006
Intermediate to advanced
630 pages
14h 45m
English
book
DB2 Performance Expert for Multiplatforms V2.2, 2nd Edition
by Whei-Jen Chen, Ute Baumbach, Marcia Miskimen, Werner Wicke
Content preview from DB2 Performance Expert for Multiplatforms V2.2, 2nd Edition
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498 DB2 Performance Expert for Multiplatforms V2.2
The CM application is written using implicit transactions, but the user is
executing long queries. Possible explanations include:
– The queries are well tuned but just taking longer than the current setting of
the LOCKTIMEOUT value in your database configuration. You should
determine if you can execute these queries at times where the system
workload is low. If this is not an option, you should increase the
LOCKTIMEOUT value to get these queries finished.
– The queries are not well tuned. For example, table scans or sorts occur
because an index is missing. See “Identifying long-running SQL
statements” on page 512.
But first use Performance Expert to analyze the reason for the deadlock or ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.