問題詳情

23)使用SQL语句将表s中字段price的值大于30的记录删除，正确的命令是
(A)DELETE FROM s FOR price>30
(B)DELETE FROM s WHERE price>30
(C)DELETE FOR price>30
(D)DELETE s WHERE price>30

參考答案

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