摘要
SDD-1算法是分布式数据库查询优化的一种算法,研究SDD-1算法的过程,分析SDD-1算法的优缺点,并针对该算法的不考虑最后一点传输代价的缺点提出了改进的SDD-1算法。
SDD-1 algorithm is the distributed database query optimization algorithm. This article studies the process of SDD-1 algorithm, analyzes the advantages and disadvantages of SDD-1 algorithm, and suggests the improved SDD-1 algorithm against the flaw that the algorithm does not consider the transmission cost of the last point.
