paperback. Etat : Very Good. Query Processing in Database Systems (Topics in Information Systems) This book is in very good condition and will be shipped within 24 hours of ordering. The cover may have some limited signs of wear but the pages are clean, intact and the spine remains undamaged. This book has clearly been well maintained and looked after thus far. Money back guarantee if you are not satisfied. See all our books here, order more than 1 book and get discounted shipping. . N� de r�f. du vendeur 7719-9783642823770

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Query Processing in Database Systems (Topics in Information Systems)

Edit� par Springer, 2011

ISBN 10 : 3642823777 ISBN 13 : 9783642823770

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Query Processing in Database Systems (Topics in Information Systems)

Edit� par Springer, 2011

ISBN 10 : 3642823777 ISBN 13 : 9783642823770

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Query Processing in Database Systems

W. Kim

Edit� par Springer Berlin Heidelberg Dez 2011, 2011

ISBN 10 : 3642823777 ISBN 13 : 9783642823770

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Vendeur : BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Allemagne

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Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book is an anthology of the results of research and development in database query processing during the past decade. The relational model of data provided tremendous impetus for research into query processing. Since a relational query does not specify access paths to the stored data, the database management system (DBMS) must provide an intelligent query-processing subsystem which will evaluate a number of potentially efficient strategies for processing the query and select the one that optimizes a given performance measure. The degree of sophistication of this subsystem, often called the optimizer, critically affects the performance of the DBMS. Research into query processing thus started has taken off in several directions during the past decade. The emergence of research into distributed databases has enormously complicated the tasks of the optimizer. In a distributed environment, the database may be partitioned into horizontal or vertical fragments of relations. Replicas of the fragments may be stored in different sites of a network and even migrate to other sites. The measure of performance of a query in a distributed system must include the communication cost between sites. To minimize communication costs for-queries involving multiple relations across multiple sites, optimizers may also have to consider semi-join techniques. 388 pp. Englisch. N� de r�f. du vendeur 9783642823770

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Query Processing in Database Systems

W. Kim

Edit� par Springer Berlin Heidelberg, 2011

ISBN 10 : 3642823777 ISBN 13 : 9783642823770

Neuf Taschenbuch

Vendeur : AHA-BUCH GmbH, Einbeck, Allemagne

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Taschenbuch. Etat : Neu. Druck auf Anfrage Neuware - Printed after ordering - This book is an anthology of the results of research and development in database query processing during the past decade. The relational model of data provided tremendous impetus for research into query processing. Since a relational query does not specify access paths to the stored data, the database management system (DBMS) must provide an intelligent query-processing subsystem which will evaluate a number of potentially efficient strategies for processing the query and select the one that optimizes a given performance measure. The degree of sophistication of this subsystem, often called the optimizer, critically affects the performance of the DBMS. Research into query processing thus started has taken off in several directions during the past decade. The emergence of research into distributed databases has enormously complicated the tasks of the optimizer. In a distributed environment, the database may be partitioned into horizontal or vertical fragments of relations. Replicas of the fragments may be stored in different sites of a network and even migrate to other sites. The measure of performance of a query in a distributed system must include the communication cost between sites. To minimize communication costs for-queries involving multiple relations across multiple sites, optimizers may also have to consider semi-join techniques. N� de r�f. du vendeur 9783642823770

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Query Processing in Database Systems

Kim, W.|Reiner, D. S.|Batory, Don S.

Edit� par Springer Berlin Heidelberg, 2011

ISBN 10 : 3642823777 ISBN 13 : 9783642823770

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Vendeur : moluna, Greven, Allemagne

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Etat : New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. This book is an anthology of the results of research and development in database query processing during the past decade. The relational model of data provided tremendous impetus for research into query processing. Since a relational query does not specify . N� de r�f. du vendeur 5071637

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