How to Change Password Expiry to Unlimited in Oracle 11gR2

##########How to change password Expiry to unlimited in Oracle 11gR2##############
----------------------Check user (SCOTT) password expiry date-----------------------------

select username, account_status, to_char(expiry_date, 'DD-MM-YYYY') EXP_DATE from dba_users where username = 'SCOTT';

---------------------------Check User(SCOTT) Profile----------------------------------------------

select profile from dba_users where username='SCOTT';

------------------------------Check this Profile Expiry Limit------------------------------------

select * from dba_profiles where profile = 'DEFAULT' and resource_name LIKE 'PASSWORD_LIFE_TIME';

-----------------------Change Expiry to Unlimited for this Profile-------------------------------

ALTER PROFILE DEFAULT LIMIT PASSWORD_LIFE_TIME UNLIMITED;

------------------------------Reset Password for User(SCOTT)-------------------------------------

ALTER USER SCOTT IDENTIFIED BY tiger;
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