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50. 資料庫系統開發流程中,將客戶需求變成 Entity-Relation 圖的階段是以下何者? (A)系統需求搜集與分析 (B)系統實作 (C)概念設計 (D)資料庫管理系統選擇。
問題詳情
50. 資料庫系統開發流程中,將客戶需求變成 Entity-Relation 圖的階段是以下何者?
(A)系統需求搜集與分析
(B)系統實作
(C)概念設計
(D)資料庫管理系統選擇。
參考答案
答案:C
難度:
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】評論
利用Entity-Relation圖來表示資料庫的概念設計,有助於設計過程中的構思及溝通討論。
上一篇 :
49. 設計一個關聯式資料表(Relational Tables) Customer (cid, name, dep_name, balance),分別表示客戶編號、客戶姓名、客戶任職單位、餘額,假設
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