Re: Re: First Saturday and Last Saturday of a month

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От Alex Page
Тема Re: Re: First Saturday and Last Saturday of a month
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Msg-id 045f01c120e9$227a6540$7fc472c1@solidstatelogic.com
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Ответ на First Saturday and Last Saturday of a month  ("Brian C. Doyle" <bcdoyle@mindspring.com>)
Ответы Re: Re: First Saturday and Last Saturday of a month  (Peter Eisentraut <peter_e@gmx.net>)
Список pgsql-general
From: "Allan Engelhardt" <allane@cybaea.com>
To: "Brian C. Doyle" <bcdoyle@mindspring.com>;
<pgsql-general@postgresql.org>
Sent: Wednesday, August 08, 2001 11:18 PM
Subject: [GENERAL] Re: First Saturday and Last Saturday of a month


> You *do* know the algorithm for testing if year yyyy is a leap year, don't
you?

> ((yyyy%4) && !(yyyy%400))

ITYM ((yyyy%4) && ( !(yyyy%400) || (yyyy%1000) ) - year 2000 was a leap
year, even though it was a multiple of 400, because it was a millenium.

Alex
--
Alex Page, IT Department, Solid State Logic
E-Mail: alex.page@solid-state-logic.com
Phone: +44 (0) 1865 842 300
Web: http://www.solid-state-logic.com



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