查询选修了课程号为\'C2\'的学生号和姓名，若用下列SQL的SELECT语句表达时，哪一个是错误的？A．SELECT S.S#，SNAME FROM S WHERE S.S#= （SELECT SC．S# FROM SC WHERE C# = 'C2' ）B．SELECT S.S#，SNAME FROM S，SCWHERE S.S# = SC．S# AND C# = 'C2'C．SELECT S.S#，SNAME FROM S，SCWHERE S.S# = SC．S# AND C# = 'C2' ORDER BY S.S#D．SELECT S.S#，SNAME FROM S WHERE S.S#IN （SELECT SC．S# FROM SC WHERE C# ='C2' ）
查询选修了课程号为\'C2\'的学生号和姓名，若用下列SQL的SELECT语句表达时，哪一个是错误的？
A．SELECT S.S#，SNAME FROM S WHERE S.S#
= （SELECT SC．S# FROM SC WHERE C# = 'C2' ）
B．SELECT S.S#，SNAME FROM S，SC
WHERE S.S# = SC．S# AND C# = 'C2'
C．SELECT S.S#，SNAME FROM S，SC
WHERE S.S# = SC．S# AND C# = 'C2' ORDER BY S.S#
D．SELECT S.S#，SNAME FROM S WHERE S.S#
IN （SELECT SC．S# FROM SC WHERE C# ='C2' ）
相关考题：
查询选修了课程号为'C2'的学生号和姓名，若用下列SQL的SELECT语句表达时，哪一个是错误的?A．SELECT S．S#，SNAME FROM S WHERE S．S#=(SELECT SC．S# FROM SC WHERE C#=‘C2’)B．SELECT S．S#，SNAME FROM S，SCWHERE S．S#=SC．S#AND C#=‘C2’C．SELECT S．S#，SNAME FROM S，SCWHERE S. S#=SC．S#AND C#=‘C2’ORDER BY S．S#D．SELECT S．S#，SNAME FROM S WHERE S．S#IN (SELECT SC．S# FROM SC WHERE C#=‘C2’)
查询选修C2课程号的学生姓名，下列SQL语句中错误的是 ______。A．SELECT 姓名 FROM S WHERE EXISTS (SELECT*FROM SC WHERE 学号=S.学号 AND 课程号='C2')B．SELECT 姓名 FROM S WHERE 学号 IN (SELECT 学号 FROM SC WHERE 课程号='C2')C．SELECT 姓名 FROM S JOIN SC ON S.学号=SC.学号 WHERE 课程号='C2'D．SELECT 姓名 FROM S WHERE 学号= (SELECT 学号 FROM SC WHERE 课程号='C2')
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查询选修了课程号为，C2，的学生号和姓名，若用下列SQL的SELECT语句表达时，错误的是( )。A．SELECT S.S#，SNAME FROM S WHERE S.S# =(SELECT SC.S# FROM SC WHERE C#='C2')B．SELECT S.S#，SNAME FROM S，SC WHERE S.S#=SC.S# AND C#='C2')C．SELECT S.S#，SNAME FROM S，SC WHERE S.S#=SC.S# AND C#='C2' ORDER BY S.S#D．SELECT S.S#，SNAME FROM S WHERE S.S IN (SELECT SC.S# FROM SC WHERE C ＝'C2')
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