Re: On view updating

From: Alfredo Novoa <alfredo_at_ncs.es>
Date: Tue, 21 Sep 2004 14:55:34 GMT
Message-ID: <415040e4.8725687@news.wanadoo.es>

On Tue, 21 Sep 2004 10:22:25 -0400, "Laconic2" <laconic2_at_comcast.net> wrote:

>Surely you can't be serious.

I am.

> To take the phrase "if and only if" in the
>context of setting the criterion for view updateability, and to say that
>the "and only if" was redundant and for emphasis is to misread the text.

If I simply say that "a view update can be done if there is PRECISELY
an unique translation", the "only if" condition is already in the
meaning of "precisely".

Regards Received on Tue Sep 21 2004 - 09:55:34 CDT