Oracle Loop

1. LOOP - END LOOP - EXIT

declare
   v_rlt number(8):=3;
begin
v_rlt:=1;
  loop
    dbms_output.put_line('loop'||v_rlt);
    v_rlt := v_rlt + 1;
    EXIT WHEN v_rlt >3;
  end loop;
end; 
/