Received: from mail.postgresql.org (webmail.postgresql.org [216.126.85.28]) by mail.postgresql.org (8.11.1/8.11.1) with SMTP id eBTMdLL34095 for ; Fri, 29 Dec 2000 17:39:21 -0500 (EST) (envelope-from pgsql-sql-owner@postgresql.org) Received: from news.tht.net (news.hub.org [216.126.91.242]) by mail.postgresql.org (8.11.1/8.11.1) with ESMTP id eBNJcN680077 for ; Sat, 23 Dec 2000 14:38:23 -0500 (EST) (envelope-from news@news.tht.net) Received: (from news@localhost) by news.tht.net (8.9.3/8.9.3) id OAA31251 for pgsql-sql@postgresql.org; Sat, 23 Dec 2000 14:16:16 -0500 (EST) (envelope-from news) X-Authentication-Warning: news.tht.net: news set sender to using -f From: "xyzii" X-Newsgroups: comp.databases.postgresql.sql Subject: left join ? Date: Sun, 24 Dec 2000 03:16:07 +0800 Organization: Hub.Org Networking Services (http://www.hub.org) Lines: 12 Message-ID: <922tls$ugc$1@news.tht.net> X-Trace: news.tht.net 977598973 31244 210.244.71.101 (23 Dec 2000 19:16:13 GMT) X-Complaints-To: scrappy@hub.org X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 To: pgsql-sql@postgresql.org X-Archive-Number: 200012/291 X-Sequence-Number: 628 hi all, I try select purc.trn_no,purcsub.item_no,purcsub.qty,emp_no,emp_na from purc left join purcsub on (purc.trn_no=purcsub.trn_no) left join emp on (purc.emp_no = emp.emp_no) postgresql not run,please help,thank