DB_UNIQUE_NAME CHANGE

Hi,

 

I am configuring dataguard in Oracle 12c RAC, Now I want to change my db_unique_name,

 

 

have tried alter system set db_unique_name=<new_name> scope=spfile.

 

its give me error.

 

SQL> alter system set db_unique_name = dbpr scope=spfile;

alter system set db_unique_name = dbpr scope=spfile

*

ERROR at line 1:

ORA-32017: failure in updating SPFILE

ORA-65500: could not modify DB_UNIQUE_NAME, resource exists

Can anyone help me.

Thanks

Sunil