Hi Jane,
No questions are lame.
The statement you wrote down wouldn't work as IFNULL() function doesn't work
the way you intended. See
http://www.mysql.com/doc/C/o/Control_flow_functions.html for this..
I would accomplish it in two statements. Here it is:
SELECT (@a:=(CASE box1 WHEN '' THEN NOW() ELSE box1 END)) from users;
UPDATE users SET box1=@a, box2=NOW() WHERE email='[EMAIL PROTECTED]';
I hope this helps..
Gurhan
-Original Message-
From: jane [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, March 13, 2002 12:09 PM
To: [EMAIL PROTECTED]
Subject: [PHP-DB] IFNULL used in a UPDATE
Hello, I am new to SQL so I hope this is not a lame question.
I want to UPDATE two fields ('box1' & 'box2') in table 'users'.
One field I want to always set the current time.
The other field I want to put the current time ONLY if it has the value
NULL.
Here is my attempt:
UPDATE users SET IFNULL(box1 = NOW()), box2 = NOW() WHERE eMail =
'[EMAIL PROTECTED]'
Any help would be greatly appreciated.
Jane.
Using: MySQL 3.22.27
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