Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1sHVWJ-008Ou7-4V for pgsql-general@arkaria.postgresql.org; Wed, 12 Jun 2024 21:28:39 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.94.2) (envelope-from ) id 1sHVWG-007PQg-Iw for pgsql-general@arkaria.postgresql.org; Wed, 12 Jun 2024 21:28:37 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1sHVWG-007PPe-7n for pgsql-general@lists.postgresql.org; Wed, 12 Jun 2024 21:28:37 +0000 Received: from mail.appl-ecosys.com ([50.126.108.78]) by makus.postgresql.org with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1sHVWE-00114d-8j for pgsql-general@lists.postgresql.org; Wed, 12 Jun 2024 21:28:35 +0000 Received: from salmo.appl-ecosys.com (salmo.appl-ecosys.com [192.168.55.1]) by mail.appl-ecosys.com (Postfix) with ESMTP id 938542A2B7C for ; Wed, 12 Jun 2024 14:28:32 -0700 (PDT) Date: Wed, 12 Jun 2024 14:28:32 -0700 (PDT) From: Rich Shepard Reply-To: Rich Shepard To: pgsql-general@lists.postgresql.org Subject: UPDATE with multiple WHERE conditions Message-ID: MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset=US-ASCII List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk I have a table with 3492 rows. I want to update a boolean column from 'false' to 'true' for 295 rows based on the value of another column. Is there a way to access a file with those condition values? If not, should I create a temporary table with one column containing those values, or do I write a psql script with 295 lines, one for each row to be updated? TIA, Rich