https://www.nowcoder.com/practice/4ab6d198ea8447fe9b6a1cad1f671503?tpId=375&tqId=10737572&sourceUrl=%2Fexam%2Foj%3FquestionJobId%3D10%26subTabName%3Donline_coding_page 每个月Top3的周杰伦歌曲这个题目的子查询创建了一个列表,学习一个新语法ROW_NUMBER() OVER ( [PARTITION BY expr1, expr2,...] ORDER BY expr1 [ASC | DESC], expr2,....