工作中遇到简单sql函数问题
select trunc(5/10,2)*100||'%' from dual
2：select e.manager_id,
row_number() over(partition by e.manager_id order by e.manager_id) RR
from employees e
3：
select trunc(5/10,2)*100||'%' from dual
2：select e.manager_id,
row_number() over(partition by e.manager_id order by e.manager_id) RR
from employees e
3：