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So did QUEL, as implemented in Ingres circa 1976. Perhaps this is what happens when you go back to basics and take a good long look at Codd's relational calculu
by inopinatus 3y ago
So did QUEL, as implemented in Ingres circa 1976. Perhaps this is what happens when you go back to basics and take a good long look at Codd's relational calculus (or, equivalently, relational algebra), to which SQL bears only a passing resemblance.
- johnthescott 3y agoback in my day, i thought a WHERE clause on the "RANGE OF alias IS RELATION" would be useful. nowadays, a session level VIEW is the way to go.