Re: SQL conditional UPDATE

Addressed to: "Derek Paterson" <d.paterson@craneware.com> php-db@lists.php.net ** Reply to note from "Derek Paterson" <d.paterson@craneware.com> Thu, 12 Oct 2000 14:46:51 +0100 > > Is there any way within one SQL query to Update to different values > dependant on conditions. I've guessed at subqueries but cannot get my > head round the syntax and web advice differs dependant on source. eg. > UPDATE table SET field1 = "valuea" WHERE condition1 ELSE field1 = > "valueb" > UPDATE table SET field1 = IF( condition1, 'valuea', 'valueb' ); An hour or two spend perusing the MySQL documentation might be very valuable. Chapter 7, the MySQL Language Reference is the area to spend most of your time. http://www.mysql.com/documentation/mysql/commented/manual.php?section=Reference Within that section you will find 7.4 Functions for Use in SELECT and WHERE Clauses very useful: http://www.mysql.com/documentation/mysql/commented/manual.php?section=Functions Rick Widmer Internet Marketing Specialists www.developersdesk.com