【摘要】 数据仓库中存放的是大量的实视图,文章利用实视图技术来优化查询。在分析传统优化查询方法的基础上,对其进行改进和扩展,给出了在数据仓库中使用实视图进行优化查询的方法和策略,以有效提高数据仓库的查询处理速度。更多还原

【Abstract】 A data warehouse stores a set of materialized views .This article studies the issues in optimizing queries using materialized views.It analyzes traditional queries processing approaches,extends and improves them.The method and strategy on optimizing queries using materialized are given.This improves queries processing speed in data warehouse.更多还原