sql server 根据指定字段排序编号 update 与 order by 联合使用

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 

WITH uinfo AS

(

SELECT orderid, ROW_NUMBER() OVER(ORDER BY grade DESC) AS rowid 

FROM userinfo

)

UPDATE uinfo   

SET orderid=rowid