This paper deals with the implementation of logic queries where array structures are manipulated. Both top-down and bottom-up implementations of the presented logic language, called DatalogA, are considered. Indeed, SLD-resolution is generalized to realize DatalogA top-down query answering. Further, a fixpoint based evaluation of DatalogA queries is introduced, which forms the basis for efficient bottom-up implementation of queries obtained by generalizing rewriting techniques such as magic set method to the case of DatalogA programs.
Querying Datalog with Arrays: Design and Implementation Issues / Greco, Sergio; Palopoli, L.; Spadafora, E.. - In: JOURNAL OF SYSTEMS INTEGRATION. - ISSN 0925-4676. - 6(4)(1996), pp. 299-327.
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Titolo: | Querying Datalog with Arrays: Design and Implementation Issues |
Autori: | |
Data di pubblicazione: | 1996 |
Rivista: | |
Citazione: | Querying Datalog with Arrays: Design and Implementation Issues / Greco, Sergio; Palopoli, L.; Spadafora, E.. - In: JOURNAL OF SYSTEMS INTEGRATION. - ISSN 0925-4676. - 6(4)(1996), pp. 299-327. |
Handle: | http://hdl.handle.net/20.500.11770/139155 |
Appare nelle tipologie: | 1.1 Articolo in rivista |