System for Accessing a Relational Database Using Semantic Queries

摘要

This invention is a system for integrating relational databases into a semantic web framework utilizing a simple mapping process and the SQL query optimizer present in the SQL database engine.

主权项

1. A system comprised of one or more computers for executing a digitally encoded database query received by the system, said query being expressed in a semantic query language, on the contents of a pre-existing relational database with a corresponding relational database schema, said system comprising:
a translating module comprised of logic configured to automatically translate the received database query into a second digitally encoded database query expressed in a relational query language by using a mapping data structure representing a semantic web language representation of the relational database domain automatically derived from the relational database schema, in order to create a translated relational query; and an execution module comprised of logic configured to execute the translated relational query on the relational database.