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From: Peter Eisentraut <e99re41@DoCS.UU.SE>
To: Imtiaz. S. M <imtiaz_sm@yahoo.com>
Cc: pgsql-sql@postgreSQL.org
Subject: Re: [SQL] SQL Problem
Date: Thu, 28 Oct 1999 12:58:29 +0200 (MET DST)
Message-ID: <Pine.GSO.4.02A.9910281257210.567-100000@Puma.DoCS.UU.SE> (raw)
In-Reply-To: <381829A7.67949B14@yahoo.com>

UPDATE second_table SET date_column = (SELECT min(date_column) FROM
first_table);

On Thu, 28 Oct 1999, Imtiaz. S. M wrote:

> I have two tables which have exactly the same structure. Both of them
> have one datetime column along with three other columns. But the
> datetime column value in the second table is NULL for all the rows. Now
> I want select the least date(date with the least value in the datetime
> column) from the first table and update all the rows in the second table
> with this least date value from the first table. I do not want to use
> any compiler or host variables. I should be able to do this only using
> SQL statements. Cn somebody please help me? Thanks in advance.
> 
> regards
> Imtiaz
> 
> 
> ************
> 
> 

-- 
Peter Eisentraut                  Sernanders vaeg 10:115
peter_e@gmx.net                   75262 Uppsala
http://yi.org/peter-e/            Sweden




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