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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Received on Tue Dec 09 2003 - 13:44:33 CST
