RE: which should be faster

From: STEVE OLLIG <sollig_at_lifetouch.com>
Date: Fri, 02 May 2003 13:12:13 -0800
Message-ID: <F001.0058E73D.20030502131213@fatcity.com>

general rule: put most selective column first in concatenated indexes.  

if there really is only 1 value for organization in all rows it does no good to index it. a would be the correct answer.

-----Original Message-----

Sent: Friday, May 02, 2003 3:27 PM
To: Multiple recipients of list ORACLE-L

I have table invoice with columns ( organization , invdate , amount )  

there are tons of query which do search on organization and invdate. But there is only one distinct value for organization .  

which index should be faster
a. just on indate or
b. ( organization, indate ).    

-ak
     

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Author: STEVE OLLIG
  INET: sollig_at_lifetouch.com

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