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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214 OnDemand SQL Performance Analysis Simplified on DB2 for i5/OS in V5R4
QQRCOD
This column indicates the reason code for an index build. You most commonly see the
following reason codes:
I2 Ordering/grouping
I4 Nested loop join
I3 Selection and ordering/grouping
For a detailed list of possible reason codes, search on Database Monitor qqrcod 3002 in
the V5R4 iSeries Information Center on the Web at:
http://publib.boulder.ibm.com/infocenter/iseries/v5r4/index.jsp
QQI2
This column contains the number of suggested primary key columns that are listed in
column QQIDXD. These are the left-most suggested key columns. The remaining key
columns are c ...
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