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 6. Custom Database Monitor Analysis 179
Figure 6-2 shows the result of the query in Example 6-1. The first row shows that the Open
operation took 5.917 milliseconds and only 0.561 milliseconds to fetch 6 rows.The query ran
with ALWCPYDTA *OPTIMIZE and with commitment control set to *NONE. Also, there were
no conversion problems when the query was run.
Figure 6-2 Common columns in the 1000 record
6.1.3 The 30XX Records: Query Optimization Row Type
The 30XX record types are referred to as Optimization rows because:
They contain information to construct the access plan for an SQL request
The Presence of Optimization rows indicate that a ...
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