How to show three more than one row as single row

Question

for example there are two tables employee and department.
emp id dept_id
101 1
101 2
101 3
Due to different dept id i am getting three rows for same emp id. Is there anwyay i can show one row and all three departments into one line.
output like this 101 1/2/3
Please help!
Thanks

Answer 1

864470 wrote:
However, I am not getting any distinct values for that.Are you sying there are multiple records for same emp_id, dept_id combination? If so:
SQL> with t as (
  2             select 101 emp_id,1  dept_id from dual union all
  3             select 101,2 from dual union all
  4             select 101,2 from dual union all
  5             select 101,3 from dual
  6            )
  7  -- end of on-the-fly data sample
  8  select  emp_id,
  9          rtrim(xmlagg(xmlelement(d,dept_id,'/').extract('//text()') order by dept_id),'/') dept_list
10    from  t
11    group by emp_id
12  /
    EMP_ID DEPT_LIST
       101 1/2/2/3
SQL> with t as (
  2             select 101 emp_id,1  dept_id from dual union all
  3             select 101,2 from dual union all
  4             select 101,2 from dual union all
  5             select 101,3 from dual
  6            )
  7  -- end of on-the-fly data sample
  8  select  emp_id,
  9          rtrim(xmlagg(xmlelement(d,dept_id,'/').extract('//text()') order by dept_id),'/') dept_list
10    from  (
11           select  emp_id,
12                   dept_id
13             from  t
14             group by emp_id,
15                      dept_id
16          )
17    group by emp_id
18  /
    EMP_ID DEPT_LIST
       101 1/2/3
SQL> SY.