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Titlebook: Relational Database Technology; Suad Alagi? Book 1986 Springer-Verlag New York Inc. 1986 Processing.data model.database.modeling.optimizat

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書(shū)目名稱(chēng)Relational Database Technology
編輯Suad Alagi?
視頻videohttp://file.papertrans.cn/827/826094/826094.mp4
叢書(shū)名稱(chēng)Monographs in Computer Science
圖書(shū)封面Titlebook: Relational Database Technology;  Suad Alagi? Book 1986 Springer-Verlag New York Inc. 1986 Processing.data model.database.modeling.optimizat
描述This book presents a unified collection of concepts, tools, and techniques that constitute the most important technology available today for the design and implementation of information systems. The framework adopted for this integration goal is the one offered by the relational model of data, its applica- tions, and implementations in multiuser and distributed environments. The topics presented in the book include conceptual modeling of application environments using the relational model, formal properties of that model, and tools such as relational languages which go with it, techniques for the logical and physical design of relational database systems and their imple- mentations. The book attempts to develop an integrated methodology for addressing all these issues on the basis of the relational approach and various research and practical developments related to that approach. This book is the only one available today that presents such an inte- gration. The diversity of approaches to data models, to logical and physical database design, to database application programming, and to use and imple- mentation of database systems calls for a common framework for all of them. It has b
出版日期Book 1986
關(guān)鍵詞Processing; data model; database; modeling; optimization; programming; relational database
版次1
doihttps://doi.org/10.1007/978-1-4612-4922-1
isbn_softcover978-0-387-96276-4
isbn_ebook978-1-4612-4922-1Series ISSN 0172-603X Series E-ISSN 2512-5486
issn_series 0172-603X
copyrightSpringer-Verlag New York Inc. 1986
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Logical Design,l entities including those which are in fact relationships. It requires little justification. In fact, we already showed that the hierarchical (unnormalized) model exhibits the insertion, deletion, and update anomalies. The reason is precisely the fact that more than one entity was represented by a
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Data Integrity, constraints are specified during the logical design phase and are in fact a part of the model. Various general types of integrity constraints discussed so far have to do with functional dependencies and keys, multivalued dependencies, aggregation, generalization, and so on. In addition, there are m
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https://doi.org/10.1007/978-1-4612-4922-1Processing; data model; database; modeling; optimization; programming; relational database
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Introduction,Concepts, techniques, and tools of the technology that is the topic of this book are meant to be applied in a diversity of environments. In such an application environment, a diversity of users and their information needs are the reason for introducing the relational technology in the environment to satisfy those needs in the best possible way.
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Data Model,A model is a representation of a set of objects and their relationships. Such a representation is always the result of a process of abstraction. During that process relevant objects, relevant relationships among them, and relevant attributes of both objects and relationships are chosen.
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