ORA-39318: Cannot alter user name.
Cause: DBMS_METADATA_DIFF was comparing two users with different names. There is no SQL ALTER statement to change the name of a user.
Action: The difference cannot be eliminated with an SQL ALTER statement.
ORA-39318:不可以更改用户名。
1.在SQL*Plus 命令提示符下输入命令:alter user rename to ;
2.检查ORA-39318,确保处于非管理模式,编辑/etc/oratab 文件,以更改用户名
3.重新启动数据库,使新的管理用户名生效
4.运行SQL命令重新启动,检查是否更改用户名