SQL> commit;
Commit complete.
SQL> alter system checkpoint;
System altered.
SQL> alter system dump datafile 4 block 175;
System altered.
SQL> select dump('XIFENFEI','16') from dual;
DUMP('XIFENFEI','16')
-------------------------------------
Typ=96 Len=8: 58,49,46,45,4e,46,45,49
我們可以但看到值有XFF改變為XIFENFEI,存儲長度變大
原文轉自:http://blogread.cn/it/article/5666