X-Original-To: pgsql-sql@postgresql.org
Received: from spampd.localdomain (postgresql.org [64.49.215.8])
	by postgresql.org (Postfix) with ESMTP id 5BC274763AC
	for <pgsql-sql@postgresql.org>; Fri,  2 May 2003 19:12:05 -0400 (EDT)
Received: from megazone.bigpanda.com (megazone.bigpanda.com [63.150.15.178])
	by postgresql.org (Postfix) with ESMTP id 04E02476463
	for <pgsql-sql@postgresql.org>; Fri,  2 May 2003 19:11:55 -0400 (EDT)
Received: by megazone.bigpanda.com (Postfix, from userid 1001)
	id B697ED643; Fri,  2 May 2003 16:11:57 -0700 (PDT)
Received: from localhost (localhost [127.0.0.1])
	by megazone.bigpanda.com (Postfix) with ESMTP
	id AC46B5C0B; Fri,  2 May 2003 16:11:57 -0700 (PDT)
Date: Fri, 2 May 2003 16:11:57 -0700 (PDT)
From: Stephan Szabo <sszabo@megazone23.bigpanda.com>
To: Katka a Daniel Dunajsky <daniel_katka@hotmail.com>
Cc: <pgsql-sql@postgresql.org>
Subject: Re: Time formating
In-Reply-To: <Law12-F49x4XFKpRcTC00007e31@hotmail.com>
Message-ID: <20030502160941.K77930-100000@megazone23.bigpanda.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
X-Spam-Status: No, hits=-25.2 required=5.0
	tests=BAYES_10,EMAIL_ATTRIBUTION,IN_REP_TO,QUOTED_EMAIL_TEXT,
	REPLY_WITH_QUOTES autolearn=ham	version=2.50
X-Spam-Level: 
X-Spam-Checker-Version: SpamAssassin 2.50 (1.173-2003-02-20-exp)
X-Archive-Number: 200305/40
X-Sequence-Number: 13205


On Fri, 2 May 2003, Katka a Daniel Dunajsky wrote:

> Hello All,
>
> This question is related to my preceeding question.
>
> How to format a value 7383 to represent 02H:03M:03SS (hours-minutes-seconds)
> using postgresql?
>
> I have this query:
>
> SELECT SUM (session_length))/60)/60 AS "Total",
> FROM   user_sessions
> WHERE  TO_CHAR(session_start, 'YYYY-MM') = '2003-04';
>
> If session_length = 7383 I will receive 2.

A better way would probably be something like:
SELECT INTERVAL '1 second' * session_length AS "Total"
 ...


> I have received advice that I should use . and it will work with
>
> select 5./2, however how to do it when I have a variable?

Use a cast of the general form CAST(<variable> as <type>).