X-Original-To: pgsql-sql-postgresql.org@localhost.postgresql.org Received: from localhost (unknown [200.46.204.144]) by svr1.postgresql.org (Postfix) with ESMTP id 555FE32A052 for ; Tue, 28 Sep 2004 15:02:28 +0100 (BST) Received: from svr1.postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 43806-06 for ; Tue, 28 Sep 2004 14:02:22 +0000 (GMT) Received: from msgdirector3.onetel.net.uk (msgdirector3.onetel.net.uk [212.67.96.159]) by svr1.postgresql.org (Postfix) with ESMTP id 21CA032A040 for ; Tue, 28 Sep 2004 15:02:22 +0100 (BST) Received: from bolek.coachhouse (213-78-105-71.friaco.onetel.net.uk [213.78.105.71]) by msgdirector3.onetel.net.uk (MOS 3.4.6-GR) with ESMTP id CTD59218; Tue, 28 Sep 2004 15:02:19 +0100 (BST) Received: (Exim 3.36) #1 (Debian)) protocol: esmtp id 1CCIYO-0002E5-00 ; Tue, 28 Sep 2004 15:02:04 +0100 Message-ID: <41596EDA.4030909@numerixtechnology.de> Date: Tue, 28 Sep 2004 15:02:02 +0100 From: T E Schmitz Reply-To: mailreg@numerixtechnology.de User-Agent: Mozilla Thunderbird 0.7 (Windows/20040616) X-Accept-Language: en-us, en MIME-Version: 1.0 To: pgsql-sql Subject: CHECK col A not NULL if col B='x' Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, hits=0.0 tagged_above=0.0 required=5.0 tests= X-Spam-Level: X-Archive-Number: 200409/242 X-Sequence-Number: 19088 Hello, Is it possible to set up a table CHECK, which ensures that column A is NOT NULL if column B = 'x' ? -- Regards/Gruß, Tarlika Elisabeth Schmitz