| 分布式数据库系统的查询优化策略 |
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| 引用本文： | 王书爱. 分布式数据库系统的查询优化策略[J]. 计算机与网络, 2008, 34(10): 52-54 |
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| 作者姓名： | 王书爱 |
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| 作者单位： | [1]荆楚理工学院,湖北荆门448000 [2]武汉理工大学,湖北武汉430070 |
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| 摘 要： | 简要的介绍了分布式数据库系统的概念和特点，并在分析比较分布式数据库系统和集中式数据库系统查询优化目标不同特点的基础上，归纳出分布式数据库系统的查询优化目标和代价分析，进而提出查询优化的策略，并在举例中重点讨论了操作执行顺序的不同对查询性能的影响。
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| 关 键 词： | 分布式数据库 查询优化 查询处理策略 |
Query Optimization Strategy in Distributed Database System |
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| WANG Shu-ai. Query Optimization Strategy in Distributed Database System[J]. China Computer & Network, 2008, 34(10): 52-54 |
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| Authors: | WANG Shu-ai |
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| Affiliation: | WANG Shu-ai(1 Jingchu University of Technology,Jingmen Hubei 448000,China)(2 Wuhan University of Technology,Wuhan Hubei 440070,China) |
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| Abstract: | The paper briefly introduces the concept and characteristics of distributed database system. When adding distributed data into database system, the distributed query processing is very difficult and complicated, and the cost of query processing is different due to different query processing strategies.Query optimization in distributed system is more important and has more notable effect. The paper discusses its purpose and strategy, and presents how different operation execution orders will affect the query performance. |
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| Keywords: | distributed database query optimization query processing strategy |
| 本文献已被 CNKI 维普 等数据库收录！ |
