显示Oracle SQL类型

Question

我很难从表中获取输出。

这是表格创建

CREATE OR REPLACE TYPE FULL_MAILING_ADDRESS AS OBJECT 
( STREET VARCHAR2(80),
  CITY   VARCHAR2(80),
  STATE  CHAR(2),
  ZIP    VARCHAR2(10));

CREATE TABLE CUSTOMER 
     (
        FULL_ADDRESS    FULL_MAILING_ADDRESS
     );

  INSERT INTO CUSTOMER  VALUES (FULL_MAILING_ADDRESS('55 SOUTH','ARLINGTON','VA','2222'));

当我在桌子上选择时，我没有得到值而是

[ORACLE.FULL_MAILING_ADDRESS]