PrefixCube

常见例句

According to the results of extensive experiments,it is more efficient for PrefixCube than Prefix-CuboidTree.
实验证明;这种索引机制比已有的前缀立方索引Prefix-CuboidTree更适合前缀立方的结构.
HierPrefixCube retains advantages on computation and organization of PrefixCube, and it can directly support aggregate queries on levels of the dimension hierarchy.
它不仅保留了前缀立方在计算和组织结构上的优点，又能直接和充分支持维层次级的聚集查询。
The rollup and the drilldown are quite frequent based on dimension hierarchies in on line analytical pro cessing (OLAP), but prefixCube does not directly support dimension hierarchies.
摘要在联机分析处理系统中，基于维层次的上卷、下钻操作十分常见，但前缀立方却不直接支持维层次。
A New Index Mechanism for PrefixCube
一种新的前缀立方索引机制