How to change account_status in dba_users

[Thomasps]

SQL> select account_status from dba_users where username='THOMAS';

ACCOUNT_STATUS
--------------------------------
OPEN
SQL> alter user thomas account lock;

User altered.

SQL> select account_status from dba_users where username='THOMAS';

ACCOUNT_STATUS
--------------------------------
LOCKED

SQL> alter user thomas account unlock;

User altered.

SQL> select account_status from dba_users where username='THOMAS';

ACCOUNT_STATUS
--------------------------------
OPEN
SQL> alter user thomas password expire;

User altered.

SQL> select account_status from dba_users where username='THOMAS';

ACCOUNT_STATUS
--------------------------------
EXPIRED
SQL> alter user thomas identified by thomas;

User altered.

SQL> select account_status from dba_users where username='THOMAS';

ACCOUNT_STATUS
--------------------------------
OPEN

Otherwise. no way...