Part of the Lecture Notes in Computer Science book series (LNCS, volume 767)


Retrospection on the extended Entity-Relationship model, on the extended Entity-Relationship calculus, on the PROLOG implementation, and on the formal semantics of the relational query language SQL; future applications of the calculus; TROLL light — a language for the specification of objects.

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© Springer-Verlag Berlin Heidelberg 1994

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