Nested Relations and Complex Objects in Databases - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Nested Relations and Complex Objects in Databases write by Serge Abiteboul. This book was released on 1989-05-10. Nested Relations and Complex Objects in Databases available in PDF, EPUB and Kindle. This volume was primarily intended to present selected papers from the workshop on Theory and Applications of Nested Relations and Complex Objects, held in Darmstadt, FRG, from April 6-8, 1987. Other papers were solicited in order to provide a picture of the field as general as possible. Research on nested relations and complex objects originates in the late seventies. The motivation was to obtain data models and systems which would provide support for so-called complex objects or molecular structures, i.e., for hierarchically organized data, thereby overcoming severe shortcomings of the relational model. This theme of research is now maturing. Systems based on those ideas are beginning to be available. Languages of various natures (algebras, calculi, graphical, logic-oriented) have been designed and a theory is slowly emerging. Finally, new developments in database technology and research are incorporating features of models involving complex objects. A variety of approaches is represented in this volume. The first three papers give overviews of major pioneering implementation efforts. The fourth paper is devoted to the important issue of implementation of storage structures. The next three papers propose excursions in the foundations of nested relations and complex objects. The following six contributions are all devoted to modeling of complex objects. The area of database design is represented by the last four papers.
Nested Relations and Complex Objects in Databases
Nested Relations and Complex Objects in Databases - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Nested Relations and Complex Objects in Databases write by Serge Abiteboul. This book was released on 2014-01-15. Nested Relations and Complex Objects in Databases available in PDF, EPUB and Kindle.
The Nested Universal Relation Database Model
The Nested Universal Relation Database Model - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Nested Universal Relation Database Model write by Mark Levene. This book was released on 1992-05-20. The Nested Universal Relation Database Model available in PDF, EPUB and Kindle. This monograph describes a method of data modelling whose basic aim is to make databases easier to use by providing them with logical data independence. To achieve this, the nested UR (universal relation) model is defined by extending the classical UR model to nested relations. Nested relations generalize flat relations and allow hierarchically structured objects to be modelled directly, whereas the classical UR model allows the user to view the database as if it were composed of a single flat relation. The author presents a comprehensive formalisation of the nested relational model, which incorporated null values into the model. Functional data dependencies and the classical notion of lossless decomposition are extended to nested relations and an extended chase procedure is defined to test the satisfaction of the data dependencies. The nested UR model is defined, and the classical UR model is shown to be a special case of the nested model.This implies that an UR interface canbe implemented by using the nested UR model, thus gaining the full advantages of nested relations over flat relations.
Query processing in object-oriented, complex-object and nested relation databases
Query processing in object-oriented, complex-object and nested relation databases - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Query processing in object-oriented, complex-object and nested relation databases write by . This book was released on 1991. Query processing in object-oriented, complex-object and nested relation databases available in PDF, EPUB and Kindle.
Object-Oriented Database System
Object-Oriented Database System - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Object-Oriented Database System write by Hiroshi Ishikawa. This book was released on 2012-12-06. Object-Oriented Database System available in PDF, EPUB and Kindle. Computer Science Workbench is a monograph series which will provide you with an in depth working knowledge of current developments in computer technology. Every volume in this series will deal with a topic of importance in computer science and elaborate on how you yourself can build systems related to the main theme. You will be able to develop a variety of systems, including computer software tools, computer graphics, computer animation, database management systems, and computer-aided design and manufacturing systems. Computer Science Workbench represents an important new contribution in the field of practical computer technology. Tosiyasu L. Kunii Preface The goal of this book is to give concrete answers to questions such as what object oriented databases are, why they are needed, how they are implemented, and how they are applied, by describing a research prototype object-oriented database system called Jasmine. That is, this book is aimed at creating a consistent view to object-oriented databases. The contents of this book are directly based on the results of the Jasmine project conducted at Fujitsu Laboratories, Ltd. The book is a polished version of my doctoral dissertation, which includes research papers which I have authored and published.
