From: Jeff Boes <jboes@nexcerpt.com>
Subject: Re: calculating interval
Date: Fri, 22 Nov 2002 13:34:57 -0500
Organization: Nexcerpt, Inc.
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To: pgsql-sql@postgresql.org

On Fri, 22 Nov 2002 09:26:31 -0500, praveen  vejandla wrote:

> Dear All,
> 
> Is there any way in postgresql to calculate the interval between two
> times excluding specific days,specific duration.
> 
> Ex:
> timestamp1 : 2002-10-01 10:30AM
> timestamp2 : 2002-15-01 04:50PM
> 
> suppose if i need the difference between timestamp1,timestamp2 but i
> don't want to count how many sun days are coming, i want to ignore all
> sundays in between,i want to ignore certain timings(say 10.00 AM to
> 5:00PM)s also,then how can I get the duration in this way.
> 

The easiest way would be to write a function in a language that supports
some kind of date library.  I'm most familiar with Perl and its
Date::Manip library, so that's what I would turn to.


-- 
Jeff Boes                                      vox 616.226.9550 ext 24
Database Engineer                                     fax 616.349.9076
Nexcerpt, Inc.                                 http://www.nexcerpt.com
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