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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124 OnDemand SQL Performance Analysis Simplified on DB2 for i5/OS in V5R4
Allow Copy Data information
This item gives you the count of the number of statements that went each of the three
ALWCPYDTA options, YES, NO, or OPTIMIZE.
Optimization goal information
These two items give a count of the optimization goal for each of the queries in the
database monitor collection. The two choices for optimization goal are First IO, which
means that the optimizer should optimize the query with the goal of bringing back the first
page of records as quickly as possible, or All IO, which means the query should be
optimized to bring back the entire result set as quickly as possible.
Additional options provided to the optimizer
There are several additional ...
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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.