Disjunctive datalog.

We consider disjunctive Datalog, a powerful database query language based on disjunctive logic programming. Briefly, disjunctive Datalog is a variant of Datalog where disjunctions may appear in the rule heads; advanced versions also allow for negation in the bodies which can be handled according to...

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Библиографические подробности
Опубликовано в::	ACM transactions on database systems. 22, 3 (1997).
Главный автор:	Eiter, Thomas
Другие авторы:	Gottlob, Georg, Mannila, Heikki
Формат:	Статья
Язык:	English
Предметы:	Information systems. Database management. Languages. Datalog. Software. Programming techniques. Theory of computation. Analysis of algorithms and problem complexity. Mathematical logic and formal languages. Mathematical logic. Logic and constraint programming. Query languages. Computing Methodologies. Artificial intelligence. Theory.