RE: Why are my indexes being ignored?

From: Mohan, Ross <MohanR_at_STARS-SMI.com>
Date: Fri, 29 Jun 2001 08:37:41 -0700
Message-ID: <F001.0033D9A7.20010629081149@fatcity.com>

index is not selective enough. it would wind up pulling MORE db blocks in using the index than a FTS.

hth

Hannibal

-----Original Message-----
Sent: Friday, June 29, 2001 11:36 AM
To: Multiple recipients of list ORACLE-L

Hi,

I created an index on a table. The table has about 83,000 rows. The index is a simple index on one field, 35 different values of the index. I analyzed the table and I analyzed the index, trying it both with a histogram and without a histogram. No matter how I do it, it does a full table scan. Any ideas why? I know I can use a hint, but it seems to me that it ought to use the index.

Bill Carle
AT&T
Database Administrator
816-995-3922
wcarle_at_att.com

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Author: Carle, William T (Bill), NLCIO
INET: wcarle_at_att.com

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Author: Mohan, Ross
INET: MohanR_at_STARS-SMI.com

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