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Home -> Community -> Usenet -> comp.databases.theory -> Re: An object-oriented network DBMS from relational DBMS point of view

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

From: Cimode <cimode_at_hotmail.com>
Date: 12 Mar 2007 11:34:50 -0700
Message-ID: <1173724490.757769.205370@8g2000cwh.googlegroups.com>


On 12 mar, 19:08, "Dmitry Shuklin" <shuk..._at_bk.ru> wrote:
> On 10 อมา, 18:32, "JOG" <j..._at_cs.nott.ac.uk> wrote:
>
> > - Row A says Aristotle is a Row Z
> > - Row Z says a Human is a mortal.
>
> No,
> Row A has attribute Name = "Aristotle" and attribute Type = RowZ
> Row Z has attribute Lifetime = "mortal"
You are stating the same thing JOG did. Only you are stating it in a overcomplicated and basically wrong way

--> A Row does not have attributes, A relation does. You are redefining what the meaning of an attribute. --> Tuples are propositions validated by true in 2VL *only*. Your logic is vague N-VL.
--> The chances such vagueness may allow to define a logical operator such as JOIN demonstrate one thing. You have no clue of what constitutes referential integrity and domain of values.

> So here is one join

In your dreams...pal Received on Mon Mar 12 2007 - 13:34:50 CDT

Original text of this message

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