Attribute inheritance implemented on top of a relational database system

An implementation technique which solves integrity checking, query evaluation, and transaction synchronization tasks in database systems with multiple attribute inheritance and uses the support of a relational database system is presented. It is shown how to implement an integrity checker and a transaction synchronization component of a database system with attribute inheritance. The basic idea is to map arbitrary integrity constraints, queries, and locks associated with classes of an inheritance lattice onto integrity constraints, queries, and locks associated with relations of an underlying relational database