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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Chapter 3. Overview of tools to analyze database performance 75
Figure 3-42 QAQQINI file configured to use MQTs
Characteristics of MQT usage feedback:
Visual Explain will show MQT in place of one or more base tables
Visual Explain does not indicate explicit MQT usage in V5R3
Visual Explain supports “highlight MQT” in V5R4
iSeries Navigator “Show MQTs” reports all MQTs on a table in V5R4
SQL Performance Monitor contains information about MQT optimization and use
Detailed Database Monitor only (that is, STRDBMON)
– 3030 Record
– 3000, 3001, 3002 Records
– 3014 Record
– 1000/3006 Records
The MQT evaluator was introduced in V5R4. The MQT evaluator ...
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