Query optimization research of distributed database based on university teaching material management system
Zhang Xue-qin
Abstract
Zhang Xue-qin
Abstract
This paper introduced issue need to be considered of query optimization based on distributed database,and then described process of query optimization based on distributed database.Finally,it bought formard distributed query policy in the university teaching material management system.
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This paper introduced issue need to be considered of query optimization based on distributed database,and then described process of query optimization based on distributed database.Finally,it bought formard distributed query policy in the university teaching material management system.
Key concepts: Query optimization, Computer science, Distributed database, Database, Sargable, View, Query language, Query expansion