1、一、环境确认
su - oracle
$sqlplus / as sysdba
SQL> desc dba_profiles;
SQL> select LIMIT from dba_profiles where RESOURCE_NAME='PASSWORD_LIFE_TIME';


2、二、修改过程
SQL> alter profile default limit PASSWORD_LIFE_TIME UNLIMITED;
3、三、确认修改已成功
SQL> select LIMIT from dba_profiles where RESOURCE_NAME='PASSWORD_LIFE_TIME';
SQL> exit