MySql（分组）排序编号

不分组直接添加顺序

• 代码

• SELECT @rownum:=@rownum+1 AS rownum, a.cus_number
  FROM (SELECT @rownum:=0) r, invest

  分组排序编号

• 代码

• SELECT a.`cus_number`,a.`id`,count(*) AS '排名',a.`invest_count`
  FROM borrow_tender   a 
  LEFT JOIN borrow_tender  b
  on a.`cus_number` = b.`cus_number` 
  and a.`id`>= b.`id`
  GROUP BY a.`cus_number`, a.`id`

   

• 示例：

• 

 

SET @i=0;
CREATE TABLE user_order AS 
SELECT
	(@i:=@i+1) AS order_id,
	order_uid,
    order_date
from order_list group by order_uid