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Home -> Community -> Mailing Lists -> Oracle-L -> Re: IOT Vs Normal Tables
IOTs can complicate your life (try looking for the object name, I freaked
when I didn't see the table name)...
BUT.. I have a table with 2 columns -- the first is 12 characters and the primary key. The second is one character -- used or unused. Made no sense to me to create a table and an index when I would ALWAYS be accessing both columns...... and I got to play with an IOT as well :)
Rachel
>From: jared still <jkstill_at_teleport.com>
>Reply-To: ORACLE-L_at_fatcity.com
>To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
>Subject: Re: IOT Vs Normal Tables
>Date: Wed, 13 Dec 2000 20:35:31 -0800
>
>On Wed, 13 Dec 2000, Sanjay Kumar wrote:
>
> > Hi,
> >
> > Can anyone tell me how to see the performance differences of using IOTs
>over the normal tables.
> >
> > Sanjay
> >
>
>I don't think you will see any performance increase
>from an IOT.
>
>You can get the same performance if your query can
>be satisfied by an index without reading the table.
>i.e. the index has all the columns to satisfy the query.
>
>IOT's just save space and complicate your life. :)
>
>Jared Still
>Certified Oracle DBA and Part Time Perl Evangelist ;)
>jkstill_at_teleport.com
>jared_still_at_enron.net
>
>--
>Please see the official ORACLE-L FAQ: http://www.orafaq.com
>--
>Author: jared still
> INET: jkstill_at_teleport.com
>
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