Needs Function

I need a user defined function for the following purpose....

If I pass a string with comma ( , ) separated chars/values.... It should
be appear in next line...

Ex: select get_sep_str ('SK, rp, h, j, 6, 9, kl') from dual;

Output :

SK

rp

h

j

6

9

kl

(Or)

I have one table like this.....

Temp Table:

Deptno number(10)

Empno varchar2(200);

Data in temp table:

Deptno Empno

----------- ------------

10 B3091,B3092,B3093,B3085

11 3651,6521

12 H3062

Now, I want to display the data like this.....

Deptno Empno

--------- ---------

10 B3091

10 B3092

10 B3093

10 B3094

11 3651

11 6521

12 H3062

Now, how can I achieve this....

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