Re: Indexes with few values
From: Hui, Kwok Miu <huikomix_at_dt.com.hk>
Date: 1996/11/18
Message-ID: <3290DE84.440D_at_dt.com.hk>#1/1
Date: 1996/11/18
Message-ID: <3290DE84.440D_at_dt.com.hk>#1/1
Mats Larsson wrote:
> Suppose I have a table where one of the columns has only three
> different values :
> If I want to search for rows with the value 'N' then an index would help
> wouldn't it ?
If you are using Oracle7.3 and the index is bitmapped one, it will help
you great;
otherwise, normal index will do no help to you.
-- Hui, Kwok Miu (Xu, Guo Miao) E-Mail: huikomix_at_dt.com.hk Oracle DBA & Unix Administrator Tel : (00852)2589 3369 Cho Yang (Hong Kong) Co., Ltd. Fax : (00852)2559 3049Received on Mon Nov 18 1996 - 00:00:00 CET