摘要
简单阐述了分布式数据库中查询优化的查询目的,并简单介绍了直接连接优化算法中的Hash划分和Partition算法。通过分析,指出Partition算法的不足,并加以改进。在改进算法中提出了查询图划分方法,缩短查询操作的响应时间。
This paper briefly describes the purpose of distributed database query optimization query and describes Hash algorithm and Partition algorithm. Through analysis, we point out the lack of Partition algorithm, and improve it. In the improved algorithm, we propose a new partition method to shorten the response time of queries.
出处
《微计算机应用》
2010年第3期47-49,共3页
Microcomputer Applications
