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Re: Secondary index on index-organized table - Too large

From: Lyall Barbour <lbarbour_at_stanford.edu>
Date: Wed, 06 Sep 2000 09:34:08 -0700
Message-Id: <10611.116311@fatcity.com>


That looks like how much is allocated, but is that much being used? Can you run dbms_space against the index and find out how much is being used? How did you create the index? Did you use the default storage clause or did you specify 5 gig at the beginning?

Maybe these questions will give you some clues to the answers you're looking for.
Lyall Barbour

At 06:34 AM 9/6/00 -0800, you wrote:
>I've created an IOT with a secondary index.
>
>Seems that the secondary index gets as much disk space as the whole table
>itself - which is amazing I think.
>
>The table consists 10 columns, while the 2nd index consists 2.
>
>Below you'll find the numbers ...
>
>Anyone knows how to reduce it's size? if possible?!
>
>(We're using direct load from 4 threads to insert data into this table,
>8.1.5.1 on NT).
>
>Ronen Levit
>Database group manager
>Talmai
>Tel: +972 8 9460606 #212
>Fax: +972 8 9460705
>Cell: +972 52 448699
>
> > TABLE TOTAL UNUSED USED
> > TOTAL UNUSED USED %USED
> > NAME BLOCKS BLOCKS BLOCKS
> > BYTES BYTES BYTES
> > ------------------------------ ------ ------
> > ------ ----- -----
> > ----- -----
> > RT_PK ( IOT ) 768000 104448 663552
> > 6291456000 855638016 5435817984 0.86
> > (secondary index) 640000 0 640000
> > 5242880000 0 5242880000 1
> >
>--
>Author: Ronen Levit
> INET: ronen.levit_at_talmai.com
>
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Received on Wed Sep 06 2000 - 11:34:08 CDT

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