Re: Unique Keys
From: Mikito Harakiri <mikharakiri_at_iahu.com>
Date: Wed, 24 Nov 2004 19:55:32 -0800
Message-ID: <xTcpd.28$mB.25_at_news.oracle.com>
Date: Wed, 24 Nov 2004 19:55:32 -0800
Message-ID: <xTcpd.28$mB.25_at_news.oracle.com>
"Kenneth Downs" <firstinit.lastname_at_lastnameplusfam.net> wrote in message
news:j8vf72-eg5.ln1_at_pluto.downsfam.net...
> which requires a constraint that no two reservations can overlap.
select 0 from Interval i1, Interval i2
where i2.x between i1.x and i1.y
or i2.y between i1.x and i1.y =
={}
Received on Thu Nov 25 2004 - 04:55:32 CET