PLSQL存储过程调用存储过程对异常的处理问题

CREATE OR REPLACE PROCEDURE test01 IS

v_id emp.empno%TYPE;

BEGIN
   UPDATE emp SET ename='test01' WHERE empno=7369;

   /*this will raise no_data_found exception*/
   SELECT empno INTO v_id FROM emp WHERE empno=12345; 
END;

CREATE OR REPLACE PROCEDURE test02 IS

BEGIN
  UPDATE emp SET ename='test02' WHERE empno=7499;
  
  /*call another procedure*/
  test01;
  
EXCEPTION
  
  WHEN NO_DATA_FOUND THEN
     DBMS_OUTPUT.PUT_LINE('execption occured.!');
  
END;

CREATE OR REPLACE PROCEDURE test03 IS

v_id emp.empno%TYPE;

BEGIN
   UPDATE emp SET ename='test03' WHERE empno=7369;

   /*this will raise no_data_found exception*/
   SELECT empno INTO v_id FROM emp WHERE empno=12345; 
 
EXCEPTION
   WHEN OTHERS THEN
     DBMS_OUTPUT.PUT_LINE('Exception Occured!');
END;