题解 | #sum开窗实现累加#
统计salary的累计和running_total
https://www.nowcoder.com/practice/58824cd644ea47d7b2b670c506a159a6
SELECT emp_no, salary, sum(salary) over(order by emp_no) running_total FROM salaries WHERE to_date="9999-01-01"
不指定分组,只用order by 即可实现累加
统计salary的累计和running_total
https://www.nowcoder.com/practice/58824cd644ea47d7b2b670c506a159a6
SELECT emp_no, salary, sum(salary) over(order by emp_no) running_total FROM salaries WHERE to_date="9999-01-01"
不指定分组,只用order by 即可实现累加
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