RE: RE: Index-Organized Table experiences
- From: "Powell, Mark D" <mark.powell@xxxxxxx>
- To: "'oracle-l@xxxxxxxxxxxxx'" <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 28 Apr 2004 13:24:05 -0400
The guesses only take place when the IOT access is via a secondary index
which first seeks the logical rowid location. If you are accessing the IOT
by PK then the 'guess factor' is not an issue.
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of ryan.gaffuri@xxxxxxx
Sent: Wednesday, April 28, 2004 1:16 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: Re: RE: Index-Organized Table experiences
We have alot of many to many relationships. IOTs sound like a good option.
However, our many to many relationships are in a high transaction database.
I remember reading that Oracle has to 'guess' the location of IOTs and that
if you perform alot of DML those guesses can be inaccurate.
anyone have experience with this?
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