The papers contained in this publication examine both theroretical and pragmatic issues related to database systems. Topics covered include: indexing techniques; deductive database systems; active and temporal databases; hypermedia systems; and schemas and integration techniques.
Views of objects and rules; implementation of very generalized data structures; smallest-first query evaluation for database systems; using optimized multi-attribute hash indexes for hash joins; avoiding redundant computations in evaluating linear queries; using KL-ONE knowledge representation techniques to structure active database rules; efficient rebalancing of tree-type main-memory dictionaries; methods of integrating knowledge-based and database systems; an integrated concurrency control approach in multidatabase systems; abstraction techniques for conceptual schemas. (Part contents.)