Logic And Prolog Database System

This paper discusses an initial research of a subfield of first order predicate logic applied to the database. Consideration has been made toward the relational database system.Here,the logic used boths as an inference system as well as a representation language. The use of logic for knowledge representation and manipulation is previously due to the work of question-answering system, which have been mainly concerned with the deductive manipulation of a small set of facts and thus require an inferential mechanism provided by logic. Similar techniques have been adopted to databases to handle large set of facts, open queries, and others. Keywords: Relational database, Programming in logic, classical interpretation, unification and queries