Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Mailing Lists -> Oracle-L -> RE: nvl affect on idexes

RE: nvl affect on idexes

From: Bala, Prakash <prakash.bala_at_cingular.com>
Date: Thu, 29 Mar 2001 08:15:40 -0800
Message-ID: <F001.002DB9D1.20010329081630@fatcity.com>

Eric, Oracle won't use the index in this case. Instead have a function-based index.

Prakash

-----Original Message-----
Sent: Thursday, March 29, 2001 9:43 AM
To: Multiple recipients of list ORACLE-L

Does nvl have any effect on indexes. In other words would it slow down a query if you used the nvl function in the where clause on an indexed field.

i.e.

select *
from foo
where indexField > nvl(xfoo,0);

Thanks,
Eric
--

Please see the official ORACLE-L FAQ: http://www.orafaq.com
--

Author: Chesebro, Eric
  INET: Eric.Chesebro_at_apfs.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
--

Please see the official ORACLE-L FAQ: http://www.orafaq.com
--

Author: Bala, Prakash
  INET: prakash.bala_at_cingular.com
Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Thu Mar 29 2001 - 10:15:40 CST

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US