什么是金融衍生產(chǎn)品，什么是科學(xué)數(shù)據(jù)管理？元數(shù)據(jù)元數(shù)據(jù)描述了數(shù)據(jù)在倉庫數(shù)據(jù)的結(jié)構(gòu)和建立方法。數(shù)據(jù)三層倉庫結(jié)構(gòu)的組件為數(shù)據(jù)三層倉庫數(shù)據(jù)結(jié)構(gòu)的組件為:企業(yè)數(shù)據(jù)模型層；數(shù)據(jù)層(運算數(shù)據(jù)，諧波數(shù)據(jù)，導(dǎo)出數(shù)據(jù))；元數(shù)據(jù)層(操作類型數(shù)據(jù)、和諧數(shù)據(jù)層元素數(shù)據(jù)、市場元素-1。1、數(shù)據(jù)倉庫三層結(jié)構(gòu)中的組成部分是數(shù)據(jù)三層數(shù)據(jù)結(jié)構(gòu)為:企業(yè)數(shù)據(jù)模型層；數(shù)據(jù)層(運算數(shù)據(jù)，諧波數(shù)據(jù)，導(dǎo)出數(shù)據(jù))；元數(shù)據(jù)層(操作類型數(shù)據(jù)、和諧數(shù)據(jù)層元素數(shù)據(jù)、市場元素數(shù)據(jù))/倉庫數(shù)據(jù)倉庫是整個-1的核心與被操縱的數(shù)據(jù)數(shù)據(jù)庫相比，其突出特點是支持海量數(shù)據(jù)和快...