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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@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 - 16:40:52 CST












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