单项选择题
A.Sequence
B.Table Function
C.Identity Column
D.INSTEAD OF Trigger
单项选择题 When a client using the SERVER_ENCRYPT authentication type connects to a server using the SERVER authentication type, what happens?（）
单项选择题 Which of the following statements allows BOB to revoke access to the SAMPLE database from user TOM?（）
单项选择题 Which of the following statements is used to revoke all DML privileges on table EMPLOYEE from user TOM?（）