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题解 | #子查询解法#
select a.emp_no, (select salary from salaries s where a.emp_no=s.e...
Mysql
2021-11-23
0
249
题解 | 计算每日次留率
MySQL窗口函数解法 select date, round(ifnull(lead(sum(next_day),1)over(order by date)/sum(new),0),3) from (select date, if(date=(min(date)over(...
2021-08-09
6
584