要找出对同一部电影评论次数在3次及以上的评论者姓名,下列语句不能实现该功能的是——
选项:
A:select name from reviewer,rating where reviewer.rid=rating.rid group by reviewer.rid having count(stars)>=3;
B:select name from reviewer A where (select count(stars) from rating B where
A:rid=
B:rid group by rid)>=3;
C:select name from reviewer where (select count(stars) from rating where reviewer.rid=rating.rid)>=3;
D:select name from review,rating where reviewer.rid=rating.rid and count(stars)>=3 group by reviewer.rid
发布时间:2024-05-19 14:36:36