问题
填空题
设有课程表和成绩表:Course(Cno,Cname,Credit)和SC(Sno,Cno,Grade),现要查询已获总学分大于12的学生(输出学号Sno和获得的总学分)。请补全下面的语句:
SELECT Sno,SUM(Credit)
FROM SC JOIN Course ON SC.Cno=Course.Cno
WHERE Grade>=60
GROUP BY Sno
()
答案
参考答案:HAVING SUM(Credit)>12