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Go Back  dBforums > Database Server Software > DB2 > How to know my query is the optimized one.

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Old 07-30-09, 04:11
hmuraleedhar hmuraleedhar is offline
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How to know my query is the optimized one.
Hi all,

I just want to know how we can ensure our query is the optimized one ? Any way to optimize the querry by ourselves .
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Old 07-30-09, 08:30
ARWinner ARWinner is offline
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The best way to know if a query is performing well is to examine the number of row read to the number of rows selected. The larger the ratio, the worse the query is performing. Who better to optimize the query than the person who knows the system the best.


Andy
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