問題詳情

73.Three of the following four aspects are taken care of by a database managementsystem (DBMS). Which aspect does not belong to these essential properties?
(A)access control
(B)cost control
(C)concurrency control
(D)integrity control.

參考答案

答案:B
難度:非常簡單1
統計:A(0),B(1),C(0),D(0),E(0)

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