--今天在处理修改密码的时候出现了，如下的问题，经过搜索相关问题，已解决
--原因通常是由于手动建库导致没有执行过@$ORACLE_HOME/sqlplus/admin/pupbld.sql这个脚本导致。
--解决方法报错中也给出了，You may need to run PUPBLD.SQL as SYSTEM
--使用system用户登陆，执行脚本即可

Error accessing PRODUCT_USER_PROFILE
Warning: Product user profile information not loaded!
You may need to run PUPBLD.SQL as SYSTEM

--首先登陆数据库，修改用户的密码，然后进行测试connect，报错
[oracle@ilogdbtest ~]$ sqlplus / as sysdba

SQL> alter user qcarilog identified by xxxxxx;

User altered.

SQL> connect qcarilog/xxxxxxx
Error accessing PRODUCT_USER_PROFILE
Warning: Product user profile information not loaded!
You may need to run PUPBLD.SQL as SYSTEM
Connected.
SQL> exit

--用system用户登陆，执行脚本
SQL> conn system/system
Connected.
SQL> @$ORACLE_HOME/sqlplus/admin/pupbld.sql

--再次尝试用该用户登陆，无报错，问题解决
[oracle@ilogdbtest ~]$ sqlplus / as sysdba

SQL> connect qcarilog/xxxxxx
Connected.