sql 逐行累加，包括当前行

select name,sl,
sum(sl) over(partition by name order by name rows between unbounded preceding and current row) as accumulate
from test;

可以实现在窗口中进行逐行累加

select uid,month,amount,
sum(amount) over(partition by uid order by month rows between unbounded preceding and current row) as accumulate
from t_access_tmp;