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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