题目内容:
检索“至少选修课程号为'C1',的学生姓名(SNAME)”的SQL语句是( )。
A.SELECT sname FROM S,SC WHERE cno='C1' B.SELECT sname FROM S,SC WHERE cno='C1'AND sno=Ssno
C.SELECT sname FROM S,SC FOR cno='C1'
D.SELECT sname FROM S,sc FOR cno='C1' AND sno=Ssno
参考答案:
答案解析: