Oracle在不使用connect by子句的情况下显示单行中的列值

Question

这是我的查询

 select deptno,ename from emp_task;

输出

我想要像这样的输出

eno      ename
20    TRINATH/RABHA
8     SAIKIRAN/KISHORE
10    KUMAR/VICKY/DAFNI

Answer 1

select deptno,
       listagg(ename,'/') within group (order by ename) as names
from temp_task
group by deptno
order by deptno;

Answer 2

这个SQL查询应该有效 -

select deptno,wm_concat(ename) 
from emp_task 
group by deptno 
order by deptno