赞题库-背景图
单项选择题

在SQL语句中,与表达式"房间号 NOT IN("w1","w2")"功能相同的表达式是

A.房间号="w1" AND 房间号="w2"
B.房间号!="w1" OR 房间号# "w2"
C.房间号< >"w1" OR 房间号!="w2"
D.房间号!="w1" AND 房间号!="w2"