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From: A. Kretschmer <andreas.kretschmer@schollglas.com>
To: pgsql-sql@postgresql.org
Subject: Re: interval as hours or minutes ?
Date: Wed, 7 Feb 2007 18:44:32 +0100
Message-ID: <20070207174432.GA24390@a-kretschmer.de> (raw)
In-Reply-To: <200702071903.35126.aarni@kymi.com>
References: <200702071903.35126.aarni@kymi.com>

am  Wed, dem 07.02.2007, um 19:03:35 +0200 mailte Aarni Ruuhimäki folgendes:
> Hi all,
> 
> Could anyone please tell an easy way to get total hours or minutes from an 
> interval ?
> 
> SELECT SUM(stop_date_time - start_date_time) AS tot_time FROM work_times WHERE 
> user_id = 1;

Perhaps. You can, for instance, with extract(epoch from stop_date_time)
retrieve the number of seconds and work with this. 


Andreas
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Andreas Kretschmer
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