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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356 OnDemand SQL Performance Analysis Simplified on DB2 for i5/OS in V5R4
9.6.1 CQE - Temporary Indexes
The index advised in CQE are basic advise and it covers Radix index only. The advice is
based on table scan and local selection columns. The temporary index creation information
provides you with insight to fine-tune your SQL performance. Further more, Visual Explain
always try and tie pieces together to advise you with a good index and presented to you in a
graphical picture as shown in Figure 9-36.
Figure 9-36 CQE Temporary Index in Visual Explain
9.6.2 SQE - Temporary Indexes
The index advised in SQE is of robust advise. The support includes ...
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