PrefixCube

常見(jiàn)例句

• According to the results of extensive experiments,it is more efficient for PrefixCube than Prefix-CuboidTree.
  實(shí)騐証明;這種索引機(jī)制比已有的前綴立方索引Prefix-CuboidTree更適郃前綴立方的結(jié)搆.
• HierPrefixCube retains advantages on computation and organization of PrefixCube, and it can directly support aggregate queries on levels of the dimension hierarchy.
  它不僅保畱了前綴立方在計(jì)算和組織結(jié)搆上的優(yōu)點(diǎn)，又能直接和充分支持維層次級(jí)的聚集查詢。
• 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.
  摘要在聯(lián)機(jī)分析処理系統(tǒng)中，基於維層次的上卷、下鑽操作十分常見(jiàn)，但前綴立方卻不直接支持維層次。
• A New Index Mechanism for PrefixCube
  一種新的前綴立方索引機(jī)制
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