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对下面的SQL语句，描述不正确的是（)。 Select Teacher.Tno,teacher.Tname, SC.Cno from SC Right Outer Join Teacher On SC.Tno=Teacher.Tno
A．使用了右外连接
B．检索教师编号，教师姓名，教师讲授的课程号三列信息
C．On关键字可以替换为Where
D．即使某教师没有讲授过任何一门课程，他的信息也会显示出来
参考答案和解析
Delete * from user
更多 “对下面的SQL语句，描述不正确的是（)。 Select Teacher.Tno,teacher.Tname, SC.Cno from SC Right Outer Join Teacher On SC.Tno=Teacher.TnoA．使用了右外连接B．检索教师编号，教师姓名，教师讲授的课程号三列信息C．On关键字可以替换为WhereD．即使某教师没有讲授过任何一门课程，他的信息也会显示出来” 相关考题
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对B
错
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