改进的分布式数据查询算法研究和实现  

Research on the improved query optimization strategy of distributed database and its implementation

作　　者：曹渠江[1] 刘罡[1] 

机构地区：[1]上海理工大学计算机与电气工程学院,上海200093

出　　处：《上海理工大学学报》2008年第4期405-408,共4页Journal of University of Shanghai For Science and Technology

摘　　要：通过对数据库查询领域中SDD-1算法性能的分析,针对其在特定情况下存在的不足,引入人工智能领域的A*算法.将改进后的SDD-1算法与J2EE技术结合,应用到生产加工企业的材料供应链系统中.通过实验表明,新算法比SDD-1算法更具有适用性.Based on the performance analysis of SDD-1 algorithm, A^＊-algorithm, originated from artificial intelligence theory, was put forward to improve the algorithm of SDD- 1. Joining with the J2EE technique, the improved algorithm was applied in the supply systems of manufactaring enterprises and processing industries. It is proved by practice that the new algorithm will have wider applicability than SDD-1 algorithm.

关 键 词：分布式查询优化 SDD-1算法 A^＊算法 

分 类 号：TP311.133.1[自动化与计算机技术—计算机软件与理论]