ORA-38759: Database must be mounted by only one instance and not open.
Cause: An attempt to turn on or off Flashback Database logging was made when the database was open or mounted by more than one instance.
Action: Mount the database in only one instance and retry the command.
Cause: An attempt to turn on or off Flashback Database logging was made when the database was open or mounted by more than one instance.
Action: Mount the database in only one instance and retry the command.
