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.
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。
Optimize to the inquiry of the distributed database system, discussed three typical algorithms, INGRES algorithm, System R* algorithm, SDD-1 algorithm, and compare with , optimize , summarize.
针对分布式数据库系统的查询优化,讲述三个典型的算法:INGRES算法、System R*算法、SDD-1算法,并进行对比、优化、总结。
