On Tue, Sep 14, 2021 at 3:58 PM Guyren Howe <guyren@xxxxxxxxx> wrote: > You’re confusing SQL with the relational model. Datalog and Quel and Tutorial D and other database languages and systems can and did provide those features also. By analogy: Arabic and Roman numerals both describe the natural numbers. Hence, they have the same mathematical properties. Spending a little time doing algebra with Roman numerals should convince anyone, however, that how you express a concept matters a lot. -- Ray Brinzer
