Entity-Relationship Approach to Database Design and Querying. Proceedings of the
Zustand: geringe Gebrauchs- u. Lagerspuren, sehr gutes Exemplar. Twenty-three high quality papers were solicited for this book, dealing with both the principles and pragmatics of using the entity-relationship approach in research and business. Two broad topics are covered: database design and database querying. The book reflects the trends in recent years of extending the modeling power of the ER model and of incorporating knowledge-based techniques into design tools for - and implementations of - ER-based systems. Inhalt: Perspective and Future Directions. The Leading Edge of Database Technology (W. Kent). Some Findings on the Intuitiveness of ER Constructs (R.C. Goldstein, V.C. Storey). Extending the ER Data Model. A Proposal for Formalizing and Extending the Generalization and Subset Abstractions in the ER Model (L. Tucherman et al.).
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