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

"Anthony W. Youngman" <wol_at_thewolery.demon.co.uk> wrote:

[snip]

>Note that relational actively *avoids* any reference to performance.
>Therefore, poor performance by relational databases can be blamed on the
>relational model to the extent that the model does not address
>performance. All relational cares about is that any operation completes

     Why not complain that an adding machine performing slowly can be blamed on the mathematical model of addition since that model does not address performance either?

>in finite time - it doesn't care whether finite is a few seconds, or
>longer than the life of the universe :-)

     So implementers require a paragraph like:

     Anthony Youngman wants you to know--in case you have not realised it--that in any implementation of this model, the faster the implementation performs, the better. If low score is better is a unfamiliar or confusing paradigm for you, consider the common case of golf scores.

     What would such a paragraph add to a model?

Sincerely,

Gene Wirchenko

Computerese Irregular Verb Conjugation:

     I have preferences.
     You have biases.
     He/She has prejudices.