Re: In an RDBMS, what does "Data" mean?

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"Dawn M. Wolthuis" <dwolt_at_tincat-group.com> wrote in message news:cahpg9$bg6$1_at_news.netins.net...
> "x" <x-false_at_yahoo.com> wrote in message news:40c98cce$1_at_post.usenet.com...
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> > "Anthony W. Youngman" <wol_at_thewolery.demon.co.uk> wrote in message
> > news:C033GQQQL7xAFwgd_at_thewolery.demon.co.uk...
> >
> > > So if I put my data into an MV database I can access it as if it were
in
> > > an RDBMS. However, the converse is not true.
> >
> > So all data in a MV database can be represented in relational model,
> > but not all data in a RDBMS can be represented in MV model :-)
> >
> > Which one is more expressive ? :-)
>
> Easy question --

It was a joke, not a question :-)
It shows what we get when playing with words and mixing issues.

Codd in 1979 ACM paper said:
Actually, the task of capturing the meaning of data is a never-ending one.

With regard to meaning, two complementary quests are evident:

(1) What constitutes an atomic fact (atomic semantics)?
(2) What larger clusters of information constitute meaningful units
(molecular semantics)?

I think your quest is (2)

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