問題詳情

QUESTION 48You need to implement a virtual private database (vpd). In order to have the vpd functionality, a trigger is required to fire when every user initiates a session in the database.What type of trigger needs to be created?
(A)DML trigger
(B)System event trigger
(C)INSTEAD OF trigger
(D)Application trigger

參考答案

答案:B
難度:非常困難0
統計:A(0),B(0),C(1),D(0),E(0)

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