Nevermind...
Just read an interesting comment in the MySQL online docs.
http://www.mysql.com/doc/en/ANSI_diff_Sub-selects.html
First user comment pointed me in the right direction.
Thanks for your help though. Much appreciated! (Especially when I
upgrade to 4.x)
--
Greg
On Tue, Jun 24, 2003 a
Jake,
Since I am running MySQL 3.23.5x, I cannot do subselects.
I am able to do the following:
SELECT * FROM Items_Pictures
LEFT JOIN Items
ON Items_Pictures.Items_ID = Items.Items_ID
WHERE Items.Items_ID IS NULL;
*BUT*, if I try to do a DELETE instead
DELETE FROM Items_Pictures
Hello Greg,
You are much better off using a not exists clause...
delete from child c
where not exists ( select 1 from parent p
where p.id = c.id)
Regards,
Jake Johnson
[EMAIL PROTECTED]
--
Plutoid - http://
I am trying to delete some orphaned records in an old database on a
website that I've recently taken over. Although the website is php
driven, I am doing this manually in a mysql client.
Mysql 3.23.54
Tables:
Items:
Items_ID
Pictures:
Picture_ID
Items_ID
I want to get
