RE: Create a constraint over 3 columns.

2006-03-25 Thread Tim Lucia
--Original Message- From: Scott Purcell [mailto:[EMAIL PROTECTED] Sent: Saturday, March 25, 2006 3:55 PM To: mysql@lists.mysql.com Subject: Create a constraint over 3 columns. I would like to be able to avoid inserting a duplicate record. The duplication consists of 3 columns though. Here is th

Create a constraint over 3 columns.

2006-03-25 Thread Scott Purcell
I would like to be able to avoid inserting a duplicate record. The duplication consists of 3 columns though. Here is the scenario. I have this existing table item (which is a product item) CREATE TABLE ITEM ( parent_id INT NOT NULL default 0, id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,