An application oriented approach to view updates

Authors:
Johannes Klein;Andreas Reuter
Affiliations:
University of Stuttgart, Stuttgart, FRG;University of Stuttgart, Stuttgart, FRG
Venue:
COCS '88 Proceedings of the ACM SIGOIS and IEEECS TC-OA 1988 conference on Office information systems
Year:
1988

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Abstract

Views are an indispensable mechanism for providing flexible database access in a workstation environment. On the other hand, views created from more than one base relation have complex and in some cases contradicting update semantics. In this paper we suggest to distinguish between object types as the units for data manipulation and views as the data structures materializing these objects. Hence, the same view can represent different object types, and depending on which of them the user is granted access, we can infer simple and coherent semantics, even for complex view definitions.