21.下列敘述何者可刪除student表格中的所有橫列?
(A)DELETE*ROWSFROMstudent
(B)DELETEALLFROMstudent
(C)DELETE FROM student
(D)DELETEROWSFROMstudent

答案：登入後查看
統計： A(28), B(11), C(207), D(9), E(0) #2262047