Re: Possible bridges between OO programming proponents and relational model

From: vc <>
Date: 3 Jun 2006 12:07:58 -0700
Message-ID: <>

Cimode wrote:
> <<What's the substantial difference with repect to 'dimensionality' ?>>
> Mainly that SQL current implementation are direct image implementation
> which limits their ability to represent relvar adequately.

Hold on right there. No one is talking about implementation, much less about 'direct image implementation', whatever it is. Please state clearly what the difference is between two expressions describing the variable that can contain a three dimensional object (except minor syntactical pecularities).

>They can
> only manipulate relvar on a representation per representation basis.

What's that supposed to mean ?

> <<See above, and what analogy do you have in mind ?>>Please read above.
> A ruby's cube has 3 dimensions (width, length, depth).

So do both the relval and the SQL object descriptions. It's, like, a trivial observation.

> When you look
> at one face of the cube you see only 2 dimensions. These 2 dimensions
> are on possible representation of the cube.

That does not make any obvious sense.

Received on Sat Jun 03 2006 - 21:07:58 CEST

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