Algres: an advanced database system for complex applications

A description is given of Algres, a programming environment that extends the relational model to handle complex objects and operations and integrates the logic programming paradigm. Algres is designed to be used to develop knowledge bases, software-engineering systems, office-automation systems, and computer-aided design and manufacturing databases. The discussion covers the Algres components, its data model, the RA abstract machine, and user languages. The system is written entirely in C.<
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