What if mass storage were free?
CAW '80 Proceedings of the fifth workshop on Computer architecture for non-numeric processing
Dynamic derived relations within the RAQUEL II DBMS
ACM '79 Proceedings of the 1979 annual conference
Physical Database Design: the database professional's guide to exploiting indexes, views, storage, and more
VLDB '79 Proceedings of the fifth international conference on Very Large Data Bases - Volume 5
Theoretical and practical tools for data base design
VLDB '81 Proceedings of the seventh international conference on Very Large Data Bases - Volume 7
The implementation of GERM, an entity-relationship data base management system
VLDB '81 Proceedings of the seventh international conference on Very Large Data Bases - Volume 7
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During the last three or four years several investigators have been exploring 'semantic models' for formatted data bases. The intent is to capture (in a more or less formal way) more of the meaning of the data, so that data base design can become more systematic and the data base system itself can behave more intelligently. Two major thrusts are clear:1) the search for meaningful units that are as small as possible --- atomic semantics2) the search for meaningful units that are larger than the usual n-ary relation --- molecular semantics.In this paper we propose extensions to the relational model to support certain atomic and molecular semantics. These extensions represent a synthesis of many ideas from the published work in semantic modeling.