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Proceedings Article: BibTeX citation key:  Buddrus
F. Buddrus, H. Gärtner and S.-E. Lautemann, "First Steps to a Formal Framework for Multilevel Database Modifications" in Proc. 8th Int. Conf. Database and Expert Systems Applications~(DEXA'97), A. Hameurlain and M. A. Tjoa, Eds., 1997, p. 240–251.
Added by: Deleted user 2007-01-08 09:59:44
 B 
Categories: AG-Gogolla, SAT, SQuIS, [ old ---- Adaptive Kommunikation --- old ]
Creators: Buddrus, Gärtner, Hameurlain, Lautemann, Tjoa
Collection: {Proc. 8th Int. Conf. Database and Expert Systems Applications~(DEXA'97)}

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Abstract
{ We propose a formal basis for operations which can be understood as implicitly used in many kinds of schema modifications. Approaches for view definition, schema evolution, and schema versioning all rely on operations which work either on instance, on schema, or on both levels. This paper discusses a basic set of these operations called modification primitives and describes their semantics on the basis of the Extended Entity Relationship (EER) Model in a Hoare-style notation. We focus on the structural part of the schema definition and outline our ideas for arbitrary manipulations of instances.}
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