問(wèn)答題
元數(shù)據(jù)是關(guān)于數(shù)據(jù)的數(shù)據(jù),他描述了數(shù)據(jù)倉(cāng)庫(kù)的
答案:
答案:元數(shù)據(jù)是關(guān)于數(shù)據(jù)的數(shù)據(jù),它描述了數(shù)據(jù)倉(cāng)庫(kù)的數(shù)據(jù)模型、數(shù)據(jù)結(jié)構(gòu)、數(shù)據(jù)來(lái)源、數(shù)據(jù)轉(zhuǎn)換規(guī)則、數(shù)據(jù)更新頻率、數(shù)據(jù)質(zhì)量以及數(shù)...