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Message-ID: <426DB1A0.2000604@carvalhaes.net>
Date: Tue, 26 Apr 2005 00:12:32 -0300
From: Rodrigo Carvalhaes <grupos@carvalhaes.net>
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Cc: pgsql-sql@postgresql.org
Subject: UPDATE WITH ORDER BY
References: <fddc0c5705042511464f94be68@mail.gmail.com>
	<20050425202406.GA3289@winnie.fuhr.org>
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<tt>Hi Guys!<br>
<br>
I need to make an UPDATE on a column reordering it with a sequence
using order by a description.<br>
Confusing??? Well.. Let me give an example...<br>
<br>
Today, my table it's organized like this:<br>
<br>
Code&nbsp;&nbsp;&nbsp;&nbsp; / Description<br>
9&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Orange<br>
15&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Apple<br>
1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Pear<br>
3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Tomato<br>
<br>
I wanna to reorganize (reordering the code from 1 to ... ordering by
description)<br>
</tt><tt><br>
Code&nbsp;&nbsp;&nbsp;&nbsp; / Description<br>
</tt><tt>1 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Apple</tt><br>
<tt>2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Orange<br>
3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Pear<br>
4 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Tomato</tt><br>
<tt><br>
I created a sequence but I am having no succes to use it because UPDATE
don't accept ORDER BY CLAUSE. The "ideal SQL" is UPDATE table SET code
= nextval('sequence') ORDER BY description <br>
<br>
I searched a lot on the NET without ant "tip" for my case. <br>
It's a very simple need but I am not able to solve it...<br>
<br>
Anyone knows how I can do it?<br>
<br>
Cheers,<br>
<br>
-- <br>
Rodrigo Carvalhaes<br>
<br>
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