問題詳情

21.删除视图myview的命令是( )
(A)DLETE myviwe
(B)DLETE VIEW myview
(C)DOP VIEW myview
(D)REMOVE VIEW myview

參考答案

答案:C
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)