NID-00120: Database should be mounted exclusively NID-00120 means that the current instance does not get the exclusivity of the cluster database, so DBNEWID utility (nid)… Read More »How to Resolve NID-00120 Error Message
DBID Database Identifier (DBID) is a unique number that can be identified by RMAN so as to do backup and restore whenever needed. In some… Read More »How to Find Oracle DBID
Different database has their own DBID that can make recovery catalog distinguish which is which, but in the same data guard infrastructure, the database, either… Read More »Why Should I Know DBID of a Database