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Titlebook: Query Processing in Database Systems; Won Kim,David S. Reiner,Don S. Batory Book 1985 Springer-Verlag Berlin Heidelberg 1985 Access.DBMS.P

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書目名稱Query Processing in Database Systems
編輯Won Kim,David S. Reiner,Don S. Batory
視頻videohttp://file.papertrans.cn/782/781797/781797.mp4
叢書名稱Topics in Information Systems
圖書封面Titlebook: Query Processing in Database Systems; Won Kim,David S. Reiner,Don S. Batory Book 1985 Springer-Verlag Berlin Heidelberg 1985 Access.DBMS.P
描述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 sit
出版日期Book 1985
關(guān)鍵詞Access; DBMS; Processing; Systems; database; database machine; database management; database system; global
版次1
doihttps://doi.org/10.1007/978-3-642-82375-6
isbn_softcover978-3-642-82377-0
isbn_ebook978-3-642-82375-6Series ISSN 1431-9365
issn_series 1431-9365
copyrightSpringer-Verlag Berlin Heidelberg 1985
The information of publication is updating

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