I wondered about that. But I also thought it was only if you had a
percent sign in the front. I supposed a couple of sql's under debug
should show you that.
Rob Berendt
--
Group Dekko Services, LLC
Dept 01.073
PO Box 2000
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com
"Erich W. Schasse" <Schasse@xxxxxxxxxxxx>
Sent by: midrange-l-bounces@xxxxxxxxxxxx
10/05/2004 10:25 AM
Please respond to
Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
To
"'Midrange Systems Technical Discussion'" <midrange-l@xxxxxxxxxxxx>
cc
Fax to
Subject
RE: SQL Like vs. = sign
Hi Dan,
yes, there is a huge performance difference.
With LIKE the optimizer can't use any index, ==> sequential search.
Mit freundlichen Grüßen / Kind regards
i.A. Erich W. Schasse
WIEDEMANN GmbH & Co. KG
IT/ORG
Wiedemannstr.
31157 Sarstedt
Tel. 05066/997-190
Fax 05066/997-366
mailto:schasse@xxxxxxxxxxxx
www.wiedemann.de
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx]On Behalf Of Dan Bale
Sent: Tuesday, October 05, 2004 4:46 PM
To: midrange-l@xxxxxxxxxxxx
Subject: SQL Like vs. = sign
I am setting up a dynamic SQL statement based on user input for data
selection. They are able to select using wildcards, so I am using the
LIKE
predicate to handle this.
My question is this: When the user doesn't specify wildcards, and
specifies
a "straight" value, is there any difference between using LIKE and an
equal
sign? I.e.:
CUSTNAME LIKE 'BALE, DAN'
CUSTNAME = 'BALE, DAN'
tia,
db
--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing
list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/midrange-l.
--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing
list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/midrange-l.
