Jena Property Table Design

A common approach to providing persistent storage for RDF is to store statements in a three-column table in a relational database system. This is typically referred to as a triple store. There are many variations on this approach, e.g., storing literals and URI’s in a separate table referenced from the triple store. But, the basic approach is that each RDF statement maps onto a single row in a database table. However, many RDF datasets have a lot of regularity, i.e., frequently occurring patterns of statements. For example, an employee dataset might include for each employee, an employee number, a name, location, phone, etc.