摘要： 介绍了一种改进的并行连接算法:Diag-Join算法,并将它运用到并行环境中。实验表明,Diag-Join算法在内存足够时可以取得最好的性能,即使在内存较小的情况下,仍能得到令人满意的效果。

关键词: 关系数据库, 并行数据库, 连接算法, 索引, 查询优化

Abstract: The paper presents an improved parallel join algorithm: Diag-Join which is used in a parall enviroment. The experiment shows that Diag-Join algorithm needs sufficient memory to achieve best case, but even for small buffer sizes the performance is still satisfactory.

中图分类号: 

• TP301.6