If you aren't using a unique key, you can always use "LIMIT 1" at the end of your query, but unless your ORDERing correctly to get the exact data row you want to update, this can have unexpected results. Gary Every Sr. UNIX Administrator Ingram Entertainment Inc. 2 Ingram Blvd, La Vergne, TN 37089 "Pay It Forward!" -----Original Message----- From: Bob Lockie [mailto:bjlockie@xxxxxxxxx] Sent: Wednesday, June 16, 2004 9:21 AM To: PHP-DB Mailing List Subject: Re: [PHP] update count On 06/16/04 09:53 John Nichel spoke: > Bob Lockie wrote: > >> What is the best way to only do an update if it going to update only >> one row? >> I want to protect my code so that it won't accidentally update more >> than one row. >> I can do a select first but there must be an easier way. :-) >> > > UPDATE thisDB.thisTable SET thisTable.thisColumn = 'thisValue' WHERE > thisTable.uniqueColumn = 'someUniqueValue' Ok, a primary key is unique, right? -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
