Terse ?
You haven't heard me terse until you hear me
trying to get the kids to sleep at night.
Don got it easy ;)
----- Original Message -----
Sent: Wednesday, December 10, 2003 8:14
AM
Subject: Re: rebuilding indexes - sure to
cause a ruckus
And in case you miss it in
Richard's terse message, one of the big reasons that it
is not 'rocket science' is that you can perform
operations that modify the index(es),
and perform block dumps of the index as you go. You can see
exactly what Oracle is
doing with the
index.
Jared
|
| Yong Huang <yong321@yahoo.com>
Sent by: ml-errors@fatcity.com
12/09/2003 11:44 AM
Please respond to ORACLE-L
|
To:
Multiple recipients of list ORACLE-L
<ORACLE-L@fatcity.com>
cc:
Subject: Re: rebuilding indexes - sure
to cause a ruckus |
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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Received on Wed Dec 10 2003 - 04:59:26 CST
