From: Josh Berkus <josh@agliodbs.com>
To: pgsql-sql@postgresql.org
Subject: SQL Challenge: Skip Weekends
Date: Thu, 20 Jun 2002 17:13:03 -0700
Message-ID: <200206201713.03801.josh@agliodbs.com> (raw)
Folks,
Hey, I need to write a date calculation function that calculates the date
after a number of *workdays* from a specific date. I pretty much have the
"skip holidays" part nailed down, but I don't have a really good way to skip
all weekends in the caluclation. Here's the ideas I've come up with:
Idea #1: Use a reference table
1. Using a script, generate a table of all weekends from 2000 to 2050.
2. Increase the interval by the number of weekends that fall in the relevant
period.
Idea #2: Some sort of calculation using 5/7 of the interval, adjusted
according to the day of the week of our starting date. My head hurts trying
to figure this one out.
--
-Josh Berkus
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To: pgsql-sql@postgresql.org
Cc: josh@agliodbs.com
Subject: Re: SQL Challenge: Skip Weekends
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