oracle报28003,修改oracle database中user的密码遇到ORA-28003和ORA-20001

[root@hosta bin]# su - oracle

[oracle@hosta ~]$ sqlplus dbsnmp/dbsnmp@prod1

SQL*Plus: Release 11.1.0.7.0 - Production on Thu Feb 25 04:59:07 2016

Copyright (c) 1982, 2008, Oracle.  All rights reserved.

ERROR:

ORA-28000: the account is locked

Enter user-name:

[oracle@hosta ~]$ sqlplus sys/oracle@prod1 as sysdba

SQL*Plus: Release 11.1.0.7.0 - Production on Thu Feb 25 04:59:22 2016

Copyright (c) 1982, 2008, Oracle.  All rights reserved.

Connected to:

Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> alter user dbsnmp account unlock;

User altered.

SQL> exit

Disconnected from Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

[oracle@hosta ~]$ sqlplus dbsnmp/dbsnmp@prod1

SQL*Plus: Release 11.1.0.7.0 - Production on Thu Feb 25 04:59:43 2016

Copyright (c) 1982, 2008, Oracle.  All rights reserved.

ERROR:

ORA-28001: the password has expired

Changing password for dbsnmp

New password:----------------->>>敲入dbsnmp

Retype new password:---------->>>敲入dbsnmp,报出如下提示：

ERROR:

ORA-28003: password verification for the specified password failed

ORA-20001: Password length less than 8

Password unchanged

Enter user-name:

解决方法：

$ORACLE_HOME/rdbms/admin/utlpwdmg.sql中：

ALTER PROFILE DEFAULT LIMIT PASSWORD_LIFE_TIME 180 PASSWORD_GRACE_TIME 7 PASSWORD_REUSE_TIME UNLIMITED PASSWORD_REUSE_MAX UNLIMITED FAILED_LOGIN_ATTEMPTS 10 PASSWORD_LOCK_TIME 1 PASSWORD_VERIFY_FUNCTION null;----->>>>此处改成null即可让ORA-28003: password verification for the specified password failed 和ORA-20001: Password length less than 8错误不再出现。