SQL语句如下: 代码如下:WITH 表1 AS ( SELECT 编号字段名, ROW_NUMBER() OVER(ORDER BY 排序字段名 DESC) AS RowNum FROM 表名 ) Update 表1 SET 编号字段名=RowNum 应用场景: 通过这样的SQL语句根据小组人气值对小组进行排名: 代码如下:WITH groups AS ( SELECT RankNum, ROW_NUMBER() OVER(ORDER BY 人气值 DESC) AS RowNum FROM club_Groups ) Update groups SET RankNum=RowNum