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59.於分散式關聯資料庫系統中,若採用“水平式分割”(horizontal fragmentation),請問其分割的單位為何? (A)資料錄(record)(B)索引(index) (C)欄位(fi
問題詳情
59.於分散式關聯資料庫系統中,若採用“水平式分割”(horizontal fragmentation),請問其分割的單位為何?
(A)資料錄(record)
(B)索引(index)
(C)欄位(field)
(D)視界(view)
參考答案
上一篇 :
58.分散式資料庫系統可具有的“透通性”(transparency)要點,下列何者非為其中之一? (A)位置(location)透通性(B)時間(temporal)透通性 (C)複製(replicat
下一篇 :
60.下列所示的資料處理模式(data model)中,何者係較為新型式的模式? (A)網絡式(network)(B)關聯式(relational) (C)階層式(hierarchical) (D)物
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