题解 | 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(rows between unbounded preceding and current row) as cumulative_profit from daily_profits order by profit_date;