問題詳情
43. 資料立方(data cube)是由資料倉儲綱要所建立的多維度數值統計資訊,若決策者希望獲得某單一維度的部分條件之統計量來分析資料時,可以用下列何種 OLAP 的運算來達成?
(A) roll up
(B) drill down
(C) slice
(D) dice
(A) roll up
(B) drill down
(C) slice
(D) dice
參考答案
答案:C
難度:計算中-1
書單:沒有書單,新增
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