Coupling Logic Programming with Relational Databases
Sabrina Silva
October 2005
Abstract
The declarative nature of a logic programming language and the
ultra-efficient data handling capabilities of database systems
provides an outstanding reason for coupling the two systems. However,
such a merge can be of a tenuous nature, often having to deal with
certain obstacles. Coupling approaches between these two systems have
seen a great amount of research, mainly on the strategies used to
establish connections between them.
With this research we aim at developing three alternative coupling
approaches for distinct forms of communication between both the
systems. We propose an initial approach where tuples from the
relational database are asserted as logic programming facts. The
second approach consists in accessing database tuples through
backtracking. The last approach transfers unification from the
logic programming language to the relational database engine with
the use of a Prolog to SQL translator .
The results in this thesis show that it is possible to couple a logic
programming system with a relational database which combines the
following three aspects: simplicity, performance and efficiency. This
combination, together with the optimization obtained from view-level
accesses and indexing can prove to be an interesting solution.
Bibtex
@MastersThesis{silva-msc,
author = {S. Silva},
title = {{Coupling Logic Programming with Relational Databases}},
school = {University of Porto},
address = {Portugal},
month = {October},
year = {2005},
type = {{MSc Thesis}},
}
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