Titlebook: Entity-Relationship Approach - ER ‘92; 11th International C G. Pernul,AM. Tjoa Conference proceedings 1992 Springer-Verlag Berlin Heidelber

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Meta object management and its application to database evolution,s, realizing incremental changes to the database schema and their propagation to data instances. We show, how each schema update of a given taxonomy is realized by direct updating of schema objects, and how this approach can be used to build a complete tool for database evolution.

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Lecture Notes in Computer Sciencehttp://image.papertrans.cn/e/image/311661.jpg

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https://doi.org/10.1007/3-540-56023-8Constraint; Data Modeling; Database Applications; Database Design; Database Management; Datenbank-Anwendu

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Diffraction Contrast in TEM Images,omplete lifecycle of a database as an interface model. For this purpose, the concepts of the ER-model need to be theoretically wellfounded. The aim of this paper is to show how the theoretical basis of one of the most important class of integrity constraints can be constructed and then used for the

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Carrier Transmission of Signals,e is stepwise so that clustered designs on different levels are achieved. Parenthood connections are used to build increasingly complex entity sets out of primitive ones. No semantical extensions of the original ER model are necessary because these connections are identified by their cardinalities a

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