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Re: Another motivational example for inverse view

From: Aloha Kakuikanu <aloha.kakuikanu_at_yahoo.com>
Date: 15 Nov 2006 15:55:54 -0800
Message-ID: <1163634954.665108.258580@k70g2000cwa.googlegroups.com>


NENASHI, Tegiri wrote:
> You are joking are you not ? It is simple because the structure of the
> relations is the same, there is not the change of the structure that a
> join of tables has, you did not create a new structure. The probleme of
> the view updatability is a morphing of one structure into the other.

Yes the relational transformation is indeed simple in this case. Yet the example is far from trivial. And the quesion is: how do one formally inverts such a view. Received on Wed Nov 15 2006 - 17:55:54 CST

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