Re: INSERT if record NOT EXISTS

2004-07-26 Thread Adaikalavan Ramasamy
Cawley, Gerald Clark and Michael Dykman for helping with this problem. I learnt a lot from the list today. Thanks! Regards, Adai. On Mon, 2004-07-26 at 18:04, Keith Ivey wrote: > Adaikalavan Ramasamy wrote: > > >This naive syntax does not work : > >IF EXISTS (SELECT myID FROM

Re: INSERT if record NOT EXISTS

2004-07-26 Thread Adaikalavan Ramasamy
, but you could make use of the > ON DUPLICATE KEY mechanism. Assuming you create a unique index on > firstname, lastname, your update might read: > INSERT INTO tb (firstname, lastname) VALUES ('Jack', 'Doe') > ON DUPLICATE KEY UPDATE lastname = lastname; >

Re: INSERT if record NOT EXISTS

2004-07-26 Thread Adaikalavan Ramasamy
firstname='Jack' AND lastname='Doe') ELSE (INSERT INTO tb(firstname, lastname) VALUES ('Jack', 'Doe'); On Mon, 2004-07-26 at 16:20, [EMAIL PROTECTED] wrote: > Adaikalavan Ramasamy <[EMAIL PROTECTED]> wrote on 26/07/2004 > 16:05:23: > >

INSERT if record NOT EXISTS

2004-07-26 Thread Adaikalavan Ramasamy
I am creating a small database that keeps track of users and assigns them a unique user ID. The problem is that sometimes the users might request to be added more than once (i.e. click on the submit button multiple times). Therefore I only want to add users if their details (here defined by both

RE: String substitution in MYSQL

2004-07-26 Thread Adaikalavan Ramasamy
-26 at 14:07, Victor Pendleton wrote: > Try using the REPLACE command. > > -Original Message- > From: Adaikalavan Ramasamy > To: [EMAIL PROTECTED] > Sent: 7/26/04 8:04 AM > Subject: String substitution in MYSQL > > I am looking for a string substitution command in

String substitution in MYSQL

2004-07-26 Thread Adaikalavan Ramasamy
I am looking for a string substitution command in MYSQL and was wondering if anyone can help me. Searching the archives was not fruitful. Here is an example : CREATE TABLE tbl (id INT(2), names VARCHAR(20)); INSERT INTO tbl VALUES (1, 'aaa'); INSERT INTO tbl VALUES (2, 'bbb; aaa; ccc'); SE

Installing MySQL

2004-03-27 Thread Adaikalavan Ramasamy
ppreciated. Thank you very much. Regards, Adaikalavan Ramasamy -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]

Local installation of mysql

2004-03-25 Thread Adaikalavan Ramasamy
Dear all, My system specs are Sun Solaris 8. As I do not have root permission, is it possible to install mysql locally in my home drive ? I checked the manuals but there does not seem to answer my question. If so, what is the expected total size on disk and recommended steps (./configure, make, m