Re: A new proof of the superiority of set oriented approaches: numerical/time serie linear interpolation

paul c wrote:
> I certainly do. RT isn't as complicated or subtle as this thread is
> making it out to be. Relvars are nothing more a language device (as are
> dbvars), for talking about relations, whether the language is D or
> English. They merely serve to save us enumerating a relation everytime
> we refer to it.

I think this is oversimplifying. Constraints are associated with variables, so we need the variables for something more than value aliases.

> Maybe
> Codd opened the door to such myticism when he mentioned "time-varying
> relations". Unfortunate phrase, if you ask me.

Agreed. "Relation variable", on the other hand, is a brilliant term.

-- 
Jon