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Re: An object-oriented network DBMS from relational DBMS point of view

From: Dmitry Shuklin <shuklin_at_bk.ru>
Date: 12 Mar 2007 11:01:24 -0700
Message-ID: <1173722484.114193.91700@v33g2000cwv.googlegroups.com>


Hello

> Every relation, by definition, has a set of attributes
> whose values are unique, and which can therefore
> be used in relational expressions to uniquely identify
> a row. That's all you'd get out of a pointer. Further,
> by requiring the unnecessary pointer, you constrain
> implementations unnecessarily.

But when I lose pointers I lose instance identity. So It is impossible or very dificult for some table to be a self row. It is not a deal for me.
Also I lose possibility for some row to be contained by many tables.

WBR, Dmitry Received on Mon Mar 12 2007 - 13:01:24 CDT

Original text of this message

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