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Re: rebuilding indexes - sure to cause a ruckus

From: Yong Huang <yong321_at_yahoo.com>
Date: Tue, 09 Dec 2003 11:44:33 -0800
Message-ID: <F001.005D950F.20031209114433@fatcity.com>


Thanks, Richard. I'll read your long message more carefully later. I like your statement that rebuilding an index or not is not rocket science. One needs to measure the performance before and after the rebuild and make a conclusion himself. Many times we discuss performance issues and get very technical and sophisticated, without showing experimental results! Having been a science researcher before, I'd like to emphasize that facts speak louder than theories. There may be 10,000 24x7 databases in the world that don't easily allow even testing an index rebuild. But there may be 100 times more production databases in the world that are not 24x7. The individual DBA needs to do his control study and conclude, using experts' opinions as reference.

Yong Huang



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Author: Yong Huang
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