Re: Is it possible to build a purely relational database on top of SQL?

Em Sat, 17 Jul 2004 09:28:25 -0700, Erich Schultz escreveu:

> "You may want to
> take a look at Alphora's Dataphor data language, a step in the right
> direction."

        This is even more interesting:
http://www.hughdarwen.freeola.com/TheThirdManifesto.web/Projects.html

        Does anyone have more details on how D4’s NULLs compare to SQL’s, and to D&D’s special values proposal, and why they have chosen their own path?

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