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

On Mar 10, 7:54 am, "Walt" <wami..._at_verizon.net> wrote:
> "Marshall" <marshall.spi..._at_gmail.com> wrote in message
>
> news:1173540150.918109.138900_at_p10g2000cwp.googlegroups.com...
>
>
>
> > On Mar 10, 6:15 am, "Walt" <wami..._at_verizon.net> wrote:
> > > "Dmitry Shuklin" <shuk..._at_bk.ru> wrote in message
>
> > >news:1173440677.467627.35460_at_q40g2000cwq.googlegroups.com...
>
> > > [snip]
>
> > > > Note, that the concept of references to the rows is also not new and
> > > > was embodied long ago in such famous RDBMS, as Oracle.
>
> > > [snip]
>
> > > It's not only not new, but also not relational.
>
> > It's not only not relational, but also not necessary.
>
> > 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.
>
> > > Anyone relying on using a reference to a row as implicitly referencing
> the
> > > data contained in the row is suing the graph model of data, and not the
> > > relational model of data.
>
> > Hmmm. Various of us have pondered many different ways to
> > help educate the programming public about the value of the
> > relational model, but I don't think anyone has ever proposed
> > involving the courts before. But as an American I love the idea!
> > Let us sue other data models for false advertising.
>
> > Marshall
>
> > PS. Sorry.
>
> My bad. Typo. "suing" should be "using".

Or a Freudian Slip.

-t- Received on Sat Mar 10 2007 - 21:44:15 CET