Re: UPDATE instead of INSERT INTO

From: Date: Sat, 05 Sep 2009 23:40:03 +0000
Subject: Re: UPDATE instead of INSERT INTO
References: 1 2  Groups: php.db 
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Thanks ----- Original Message ----- From: "Waynn Lue" <waynnlue@gmail.com> To: "Ron Piggott" <ron.php@actsministries.org>; <php-db@lists.php.net> Sent: Saturday, September 05, 2009 4:45 PM Subject: Re: [PHP-DB] UPDATE instead of INSERT INTO
INSERT INTO ON DUPLICATE KEY UPDATE is what you're looking for. On 9/5/09, Ron Piggott <ron.php@actsministries.org> wrote:
I made an application which lets users rate web site content. At the heart of the application is this mySQL query: INSERT INTO ratings ( reference , content_type , content_reference , language , ip_address , rating_timestamp , rating ) VALUES ( NULL , '$content_type','$content_reference' , '$language', '$ip_address', NOW( ) , '$user_rating' ); I am wondering if there is a way to check if the user has already voted (IE If there is already a matching record with the same content_type, content_reference, language, ip_address values) so all that happens is an UPDATE to the rating field? Ron
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