How to loop through a delimited list in Oracle PLSQL

Question

I am working on an Oracle procedure that calls another procedure within it. One of my parameters (parm1) can contain one or more values in a comma separated lis

Answer 1

CURSOR V_CUR IS
select regexp_substr(Parm1 ,'[^,]+', 1, level) As str from dual
connect by regexp_substr(Parm1, '[^,]+', 1, level) is not null;

This curor will give you result like this

123
321

Now iterate the cursor and call the procedure in loop.

For i IN V_CUR
LOOP
    callProdcedure2(i.str);
END LOOP;