使用OVER子句和PARTITION BY子句与计数器计算运行总计

Question

如何使用计数器计算每个week_number和user_name的积分总和？ 我使用sum() OVER (PARTITION BY ORDER BY )

我希望最大金额为10。
我该怎么办？

这是我的原始桌子：

这是我想要获得的结果：

这是sql代码：

SELECT week_number,
user_name,
sum(points) OVER (PARTITION BY user_name ORDER BY week_number) AS total_prime
FROM team;

Answer 1

尝试一下

select 
  week_number, 
  user_name, 
  points, 
  case when total_prime > 10 then 10 else total_prime end as sum, 
  case when total_prime > 1 and total_prime < 10 then null 
       when total_prime > 10 then total_prime - 10 end as dif
from
  (select 
     week_number, 
     user_name, points, 
     sum(points) over (partition by user_name order by week_number) as total_prime 
   from 
     team) a

我没有在您的第二张表中找到该表，其中alan有point 4但有sum 2。