Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 1EF562E300E for ; Wed, 12 Mar 2008 12:49:17 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 46325-02 for ; Wed, 12 Mar 2008 12:48:58 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.5 Received: from perseverance.services.encs.concordia.ca (perseverance-96.encs.concordia.ca [132.205.96.94]) by postgresql.org (Postfix) with ESMTP id C01422E2DC1 for ; Wed, 12 Mar 2008 12:48:57 -0300 (ADT) Received: from cacao.encs.concordia.ca (emilu@cacao.encs.concordia.ca [132.205.47.225]) by perseverance.services.encs.concordia.ca (envelope-from emilu@encs.concordia.ca) (8.13.7/8.13.7) with ESMTP id m2CFlIAQ032749 for ; Wed, 12 Mar 2008 11:48:22 -0400 Message-ID: <47D7FB06.10707@encs.concordia.ca> Date: Wed, 12 Mar 2008 11:47:18 -0400 From: Emi Lu Reply-To: emilu@encs.concordia.ca User-Agent: Thunderbird 2.0.0.12 (X11/20080213) MIME-Version: 1.0 To: pgsql-sql@postgresql.org Subject: case when... end in update clause? Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.58 on perseverance.encs.concordia.ca at 2008/03/12 11:48:22 EDT X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200803/55 X-Sequence-Number: 30383 Hello, May I know can "case when " used by update clause. If yes, how? I use one small Example, table: test ============================= id == 5 6 8 try to update test.id update test case when id =5 then SET id = 6 end ; Thanks!