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DOOD
1991
Springer
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13 years 7 months ago
Non-Determinism in Deductive Databases
This paper examines the problem of adding non-deterministic constructs to a declarative database language based on Horn Clause Logic. We revise a previously proposed approach, the...
Fosca Giannotti, Dino Pedreschi, Domenico Sacc&agr...
PLILP
1998
Springer
13 years 8 months ago
A Hidden Herbrand Theorem
: The bene ts of the object, logic or relational, functional, and constraint paradigms can be obtained from our previous combination of the object and functional paradigms in hidde...
Joseph A. Goguen, Grant Malcolm, Tom Kemp