Article View: borland.public.interbase.sql
Article #11041Re: adding "is null" to an existing column with stored data
From: Robert Schieck
Date: Tue, 17 Dec 2002 13:39
Date: Tue, 17 Dec 2002 13:39
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In article <3dff2322@newsgroups.borland.com>, Jack wrote: > Is it possible in IB 6 to add PRIMARY KEY NOT NULL constraints to an > existing column (numeric) with data already stored in? > > For your help thanx in advance > Interesting... Why not just add a unique index to the column... I use them in place of Primary keys all the time. They will allow one null though... hth Robert Schieck (TeamB) MER Systems Inc. Inprise/Borland/InterBase Search Engine http://www.mers.com/searchsite.html
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 114a0e,f0ac75b988552c83 X-Google-Attributes: gid114a0e,public X-Google-ArrivalTime: 2002-12-17 05:40:04 PST Date: Tue, 17 Dec 2002 08:39:24 EST Newsgroups: borland.public.interbase.sql Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Newsreader: Virtual Access by Atlantic Coast PLC, http://www.atlantic-coast.com/va Organization: MER Systems Inc. Message-ID: <VA.0000036b.0202abdc@mers.com> Subject: Re: adding "is null" to an existing column with stored data From: Robert Schieck <rschieck@mers.com> Reply-To: rschieck@mers.com References: <3dff2322@newsgroups.borland.com> NNTP-Posting-Host: 205.207.149.16 X-Trace: newsgroups.borland.com 1040132360 205.207.149.16 (17 Dec 2002 05:39:20 -0800) Lines: 20 Path: arc1-ca.pugleaf.net!archiver1.google.com!news2.google.com!news1.google.com!sn-xit-02!sn-xit-03!sn-xit-01!sn-xit-09!supernews.com!diablo.theplanet.net!newsfeed.esat.net!lnewspeer01.lnd.ops.eu.uu.net!emea.uu.net!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail