Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder1.news.weretis.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.freenet.ag!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.026 X-Spam-Evidence: '*H*': 0.95; '*S*': 0.00; 'does,': 0.09; 'identifier,': 0.09; 'imply': 0.09; 'name)': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'applies': 0.15; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'suggestion.': 0.16; 'mon,': 0.16; 'subject:request': 0.17; 'feb': 0.19; '+0000': 0.20; 'define': 0.20; 'germany': 0.21; 'idea': 0.24; 'separate': 0.27; 'header:X-Complaints-To:1': 0.28; 'key,': 0.29; 'probably': 0.29; 'maybe': 0.29; 'primary': 0.30; 'stuff': 0.30; '(and': 0.32; 'could': 0.32; 'club': 0.33; 'url:home': 0.33; 'handle': 0.33; 'to:addr:python-list': 0.33; 'another': 0.33; 'needed': 0.35; 'same.': 0.35; 'stores': 0.35; 'table': 0.35; 'received:org': 0.36; 'but': 0.36; "didn't": 0.36; 'should': 0.36; 'charset:us-ascii': 0.36; 'does': 0.37; 'why': 0.37; 'ones': 0.37; 'data': 0.37; 'subject:: ': 0.38; 'to:addr:python.org': 0.39; 'skip:" 10': 0.40; 'header:Received:5': 0.40; 'mentioned': 0.63; 'more': 0.63; 'more...': 0.65; 'foreign': 0.72; 'special': 0.73; '2013': 0.84; 'season': 0.84; 'dennis': 0.91; 'league': 0.91; 'received:108': 0.91; 'youth': 0.93 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Dennis Lee Bieber Subject: Re: Improve reduce functions of SQLite3 request Date: Mon, 04 Feb 2013 18:47:14 -0500 Organization: > Bestiaria Support Staff < References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Gmane-NNTP-Posting-Host: adsl-108-79-219-20.dsl.klmzmi.sbcglobal.net X-Newsreader: Forte Agent 3.3/32.846 X-No-Archive: YES X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 39 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1360021639 news.xs4all.nl 6938 [2001:888:2000:d::a6]:60081 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:38150 On Mon, 4 Feb 2013 22:05:08 +0000 (UTC), Steffen Mutter declaimed the following in gmane.comp.python.general: > There's much more stuff in the table of the database, but these ones > does not matter, the table Runde20122013 stores all the data needed for > gameplay during this season and is made to handle ALL leagues in germany > and if you enter another federation name as 'dhb' it could handle even > more... > Jutst to explain: the numbers define the team(s) of the club in a > special category (male/female, youth E,D,C,B,A adults, senior), playing > in a league. Which does, to me, imply an unnormalized database. The "team/category" should be a separate field. club(*ID*, name) team(*ID*, /club/, category) {where *..* is primary key, /../ is a foreign key} and league should probably be another table (and "club" may have a /league/ entry). Yes, that would imply using JOINs to get a full identifier, and maybe more complex GROUP BY terms... > Woha! > Why didn't I get this out by myself? Well, I only got the idea after someone else mentioned using min(); but I don't recall if they had GROUP BY in that suggestion. GROUP BY ensures the min() only applies when the "nr" is the same. -- Wulfraed Dennis Lee Bieber AF6VN wlfraed@ix.netcom.com HTTP://wlfraed.home.netcom.com/