X-Original-To: pgsql-sql-postgresql.org@postgresql.org Received: from localhost (mx1.hub.org [200.46.208.251]) by postgresql.org (Postfix) with ESMTP id 33A049FA5DD for ; Sun, 11 Jun 2006 16:03:39 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.208.251]) (amavisd-new, port 10024) with ESMTP id 46965-02 for ; Sun, 11 Jun 2006 16:03:30 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from mail47.e.nsc.no (mail47.e.nsc.no [193.213.115.47]) by postgresql.org (Postfix) with ESMTP id 0F9329FA3D7 for ; Sun, 11 Jun 2006 16:03:29 -0300 (ADT) Received: from [192.168.0.57] (062016183238.customer.alfanett.no [62.16.183.238]) (authenticated bits=0) by mail47.nsc.no (8.13.6/8.13.5) with ESMTP id k5BJ3RBG018070 for ; Sun, 11 Jun 2006 21:03:27 +0200 (CEST) From: "Leif B. Kristensen" To: pgsql-sql@postgresql.org Subject: Re: Finding multiple events of the same kind Date: Sun, 11 Jun 2006 21:03:27 +0200 User-Agent: KMail/1.9.1 References: <20060611183639.19893.qmail@web31810.mail.mud.yahoo.com> In-Reply-To: <20060611183639.19893.qmail@web31810.mail.mud.yahoo.com> X-Face: %iea8o"[SI'kMDS.`hz7lU=?\^lC9J-]CVjo; f{4-C:$?uVUEjyN~uYFn%*aH_c3d09U>=?utf-8?q?x=0A=09TXtaoj=7EMV=2E8PgG7hik9=3BcCT2N6+u?=@Y{wH\p3*_f~FH9k,Wi74e[_l%.7b^'zJ)8S'^G<(=?utf-8?q?=3D=0A=09zw8=5CPMC3=27=7BKl9=2EzL*ks!b6wA?=,c~'F`k&Vq|ELDGa|4 X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200606/119 X-Sequence-Number: 25355 On Sunday 11. June 2006 20:36, Richard Broersma Jr wrote: >Also, you could create a unique column constraint that would prevent > multiply instances of the same person in the participants table. I have considered that as well. But as my front end main view looks like a "structured document" in a browser window, ie. with events and their associated notes and sources, it's sometimes very convenient to enter and view duplicate events. It can be of immense help in a critical evaluation of sources. Here's a screenshot of the main view: -- Leif Biberg Kristensen | Registered Linux User #338009 http://solumslekt.org/ | Cruising with Gentoo/KDE