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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198 OnDemand SQL Performance Analysis Simplified on DB2 for i5/OS in V5R4
Figure 6-14 shows the output of the query in Example 6-14.
Figure 6-14 Time-consuming jobs
The total time is in microseconds. Therefore, you must divide the time by 1000000 to see it in
seconds.
To find SQL requests that might cause the problems, look at different information. For
example, you should know whether the Database Monitor collection is from a sample period
of the day or from a period when response problems were observed. You can also determine
which SQL requests in a specific job or jobs take the most processing time.
6.4.2 Total time spent in SQL
During the analysis ...
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