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From: Richard Huxton <dev@archonet.com>
To: Graham Leggett <minfrin@sharp.fm>
Cc: Frank Bax <fbax@sympatico.ca>
Cc: pgsql-sql@postgresql.org
Subject: Re: Normalising an existing table - how?
Date: Fri, 25 Jun 2004 09:37:55 +0100
Message-ID: <40DBE463.7060308@archonet.com> (raw)
In-Reply-To: <40DB4B64.5080101@sharp.fm>
References: <5.2.1.1.0.20040624170431.04384a70@pop6.sympatico.ca>
	<40DB4B64.5080101@sharp.fm>

Graham Leggett wrote:
> Frank Bax wrote:
> 
>> Do all three steps in one command:
>>
>> create table newtable as (select key1, key2, money from oldtable);
> 
> 
> How would I put the primary key of each row in newtable back into 
> oldtable? Also, newtable already exists and contains data - I need to 
> add normalised data to an already partially normalised database.

How can newtable contain data if you don't have any keys for it?

Perhaps a fuller example, with the schemas of the tables in question 
would help.

-- 
   Richard Huxton
   Archonet Ltd



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