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.是什么意思_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.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句