Extending the ODMG Architecture with a Deductive Object Query Language

Deductive database languages have often evolved with little regard for ongoing developments in other parts of the database community. This tendency has also been prevalent in deductive object-oriented database (DOOD) research, where it is often difficult to relate proposals to the emerging standards for object-oriented or object-relational databases. This paper seeks to buck the trend by indicating how deductive languages can be integrated into the ODMG standard, and makes a proposal for a deductive component in the ODMG context. The deductive component, which is called DOQL, is designed to conform to the main principles of ODMG compliant languages, providing a powerful complementary mechanism for querying, view definition and application development in ODMG databases.