In this paper we introduce G-Log, a declarative graphical query language which combines of the expressive power of logic, the modelling power of objectorientedness and the representation power of graphs. As in the case of prolog, G-Log may be used in a totally declarative way, as well as in a more procedural way. Furthermore, it provides an intuitive and flexible graphical tool for non-expert database users. We prove that G-Log is a graphical equivalent of the first order predicate calculus. Finally, we study its features as a non-deterministic language and compare it with other existing non-deterministic languages.

G-Log: A declarative graphical query language

TANCA, LETIZIA
1991-01-01

Abstract

In this paper we introduce G-Log, a declarative graphical query language which combines of the expressive power of logic, the modelling power of objectorientedness and the representation power of graphs. As in the case of prolog, G-Log may be used in a totally declarative way, as well as in a more procedural way. Furthermore, it provides an intuitive and flexible graphical tool for non-expert database users. We prove that G-Log is a graphical equivalent of the first order predicate calculus. Finally, we study its features as a non-deterministic language and compare it with other existing non-deterministic languages.
1991
Deductive and Object-Oriented Databases
9783540466468
9783540550150
Deductive databases; Datalog; graph-based languages; query languages
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/665524
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 18
  • ???jsp.display-item.citation.isi??? 3
social impact