March 2007
Intermediate to advanced
488 pages
13h 46m
English
book
OnDemand SQL Performance Analysis Simplified on DB2 for i5/OS in V5R4
by Hernando Bedoya, Jaime Gaug, James Kerl, Ser Ser NG, Jose Cardoso dos Santos
Content preview from OnDemand SQL Performance Analysis Simplified on DB2 for i5/OS in V5R4
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86 OnDemand SQL Performance Analysis Simplified on DB2 for i5/OS in V5R4
the query in a few minutes. The query is then run when the optimum implementation is
achieved.
One of the most important debug messages to look for is advice about the creation of
indexes, since the objective of creating indexes is to improve the performance of your
queries. The query optimizer analyzes the record selection in the query and determines,
based on the default estimate, whether the creation of an index can improve performance. If a
permanent index is beneficial, it returns the key fields necessary to create the suggested
index. You can find Index Advisor inf ...
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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.
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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.