Oracle数据库用户的密码过期时间如何修改为永不过期

SELECT * FROMdba_profiles s WHERE s.profile='DEFAULT' ANDresource_name='PASSWORD_LIFE_TIME';
SELECT * FROMdba_profiles s ;
--查看用户profile
select username, user_id, account_status,expiry_date, profile from dba_users where username = 'MESSERIES';
--1. 创建新的profile（PASSWD_UNLIMIT）复制DEFAULT的Script
CREATE PROFILE "PASSWD_UNLIMIT" LIMIT
 SESSIONS_PER_USER UNLIMITED
 CPU_PER_SESSION UNLIMITED
 CPU_PER_CALL UNLIMITED
 CONNECT_TIME UNLIMITED
 IDLE_TIME UNLIMITED
 LOGICAL_READS_PER_SESSION UNLIMITED
 LOGICAL_READS_PER_CALL UNLIMITED
 COMPOSITE_LIMIT UNLIMITED
 PRIVATE_SGA UNLIMITED
 FAILED_LOGIN_ATTEMPTS 10
 PASSWORD_LIFE_TIME 180
 PASSWORD_REUSE_TIME UNLIMITED
 PASSWORD_REUSE_MAX UNLIMITED
 PASSWORD_LOCK_TIME 1
 PASSWORD_GRACE_TIME 7
 PASSWORD_VERIFY_FUNCTION NULL;
SELECT * FROMdba_profiles;
--2. 修改新建的profile（PASSWD_UNLIMIT），密码过期为不过期
ALTER profilePASSWD_UNLIMIT limit PASSWORD_LIFE_TIME UNLIMITED;
--3. 修改用户的Profile为新的profile
alter user MESSERIES profile PASSWD_UNLIMIT;