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