窗口函数求累加 | 计算每日累计利润
计算每日累计利润
https://www.nowcoder.com/practice/c9b7a2f73eb54a3da4a81f15fd8a3665
select
profit_id,
profit_date,
profit,
sum(profit) over (
order by
profit_date
)
# 窗口函数求累加
as cumulative_profit
from
daily_profits
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