I don't have any idea what you are trying to say.

A database should be a black box. You put data in and pull data out. The less you have to know about the details of what goes on inside, the better.

You can easily benchmark two black box systems that perform the same function (with unknown implementations), and the results are totally relevant as a comparison of those two systems.


Anthony Youngman wrote:

Because the results are not (scientifically) reproducible. (Well, they
are for that one implementation...)

Because data storage is part of the Pick data model, we can be confident
that benchmark results are valid across all (similar?) implementations.
Because relational forbids knowing anything about the implementation,
any benchmark is valid for that one configuration only.

--
Geoffrey Mitchell
Programmer/Analyst
Home Decorator's Collection
314-684-1062
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