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This volume contains the proceedings of the eleventh BritishNational Conference on Databases, held at Keele University,England. A dominant themein the volume is the provision ofthe means to enhance the capabilities of databases to handleinformation that has a rich semantic structure. A majorresearch question is how to achieve such a semantic scale-upwithout sacrificing performance. There are currently twomain paradigms within which it is possible to proposeanswers to this question, deduction-oriented andobject-oriented. Both paradigms are well represented in thiscollection, with the balance in the direction of thedeductive approach, which is followed by both the invitedpapers, by Michael Freeston from the EuropeanComputer-Industry Research Centre in Munich and CarloZaniolo from the University of California at Los Angeles. Inaddition, the volume contains 13 full papers selected from atotal of36 submissions.

Advances in Databases: 11th British National Conference on Databases, BNCOD 11, Keele UK, July 7-9, 1993. Proceedings

Begriffsverzeichnis: a concept index.- On the unification of active databases and deductive databases.- Semantic constraints in a medical information system.- A methodology for semantically enriching interoperable databases.- Distributed databases tied with string.- Viewing objects.- Function materialization through object versioning in object-oriented databases.- A C++ database interface based on the Entity-Relationship approach.- Object-oriented database methodology - State of the art.- Deductive databases with conditional facts.- A deductive object-oriented database for data intensive application development.- Storage and retrieval of first-order terms using a relational database.- Principles of implementing historical databases in RDBMS.- Integrity constraint enforcement in the functional database language PFL.- Implementation of a version model for artists using extended relational technology.