Re: grouping in tuple relational calculus
From: Mikito Harakiri <mikharakiri_at_iahu.com>
Date: Tue, 15 Feb 2005 14:40:52 -0800
Message-ID: <s4vQd.28$BP3.131_at_news.oracle.com>
Date: Tue, 15 Feb 2005 14:40:52 -0800
Message-ID: <s4vQd.28$BP3.131_at_news.oracle.com>
"Antonio Martinez" <antonio_at_colpos.mx> wrote in message
news:e0fac771.0502151328.630ece22_at_posting.google.com...
> Does anybody know how to represent
> grouping queries in tuple relational
> calculus? either that or an extension
> that allows such operations ? (avg, sum,
> etc)
>
> any pointers will be very wellcome!
The Alice book, pg 93? Received on Tue Feb 15 2005 - 23:40:52 CET