SQL> select username,account_status from dba_users;
USERNAME ACCOUNT_STATUS
------------------------------ --------------------------------
MGMT_VIEW OPEN
SYS OPEN
SYSTEM OPEN
DBSNMP OPEN
SYSMAN OPEN
OUTLN EXPIRED & LOCKED
FLOWS_FILES EXPIRED & LOCKED
MDSYS EXPIRED & LOCKED
ORDSYS EXPIRED & LOCKED
SQL> alter user outln account unlock;
User altered.
为用户修改密码：
SQL> alter user outln identified by outln;
User altered.
SQL> conn outln/outln
Connected.