How to create multiple loops in plsql procedure

declare
        cursor c_job is select * from job;
        r_job c_job%ROWTYPE;
        cursor c_empInjob (cin_jobNo NUMBER) is select * from employee where empno = cin_jobNo;

        r_emp c_empInjob%ROWTYPE;
    begin
        open c_job;
        loop
           fetch c_job into r_job;
           exit when c_job%NOTFOUND;
           open c_empInjob (r_job.empno);
           loop
               fetch c_empInjob into r_emp;
               exit when c_empInjob%NOTFOUND;
           end loop;
           close c_empInjob;

       end loop;
       close c_job;
   end;
   /



 reference :
 http://www.java2s.com/Tutorial/Oracle/0500__Cursor/Placingcursorsinnestedloops.htm