SQL ontologies are ontologies that implement the Semantic Web in SQL and are designed to provide common business meaning to data distributed in varied sources and enable them as concepts with inference and graph traversal capabilities to facilitate discovery, use and access to data.
With Timbr, you can model and explore your ontology visually or in standard SQL. The SQL Ontology is exposed to the SQL user as a virtual schema with virtual tables (concepts) using any SQL client with JDBC/ODBC.