Titlebook: Database and Expert Systems Applications; 7th International Co Roland R. Wagner,Helmut Thoma Conference proceedings 1996 Springer-Verlag Be

Isthmus

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言行自由

Using a query language to state consistency constraints for repositories, items in the repository. The queries are handled by a generic analyzer, which checks the defined constraints whenever appropriate. Furthermore, we present a general classification schema for consistency constraints and describe how different classes of constraints are handled by our approach.

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0302-9743 tive databases, temporal databases, transactions and concurrency, relational databases, CSCW and workflow systems, parallel and distributed systems, expert systems, knowledge-based systems, and information retrieval.978-3-540-61656-6978-3-540-70651-9Series ISSN 0302-9743 Series E-ISSN 1611-3349

A簡潔的

View maintenance in object-oriented databases,e., views derived from base classes. To achieve incremental view update, we introduce a modification list into each base class. A series of algorithms are developed to serve the purpose. Finally it happened that, view maintenance within object-oriented databases subsumes that within the nested and hence conventional relational models.

Conscientious

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