题目内容

下面SQL语句中不正确的一项是——()

A. select name from reviewer,rating where reviewer.rid=rating.rid group by reviewer.rid
B. select name from reviewer,rating where reviewer.rid=rating.rid having count(stars)>=3
C. select name from reviewer,rating group by reviewer.rid having count(stars)>=3
D. select name from reviewer,rating group by reviewer.rid where count(stars)>=3

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