Please anyone can help me that how i can change the database unique name for oracle data guard configuration.
A:
I believe you are talking about the unique identifier id, which is the same as the original database because you probably created the standby as a clone.
The utility is "nid"
http://download.oracle.com/docs/cd/B14117_01/server.101/b10825/dbnewid.htm#i1004664
REW
2010-07-27 07:01:01