ORA-16007
        invalid backup control file checkpoint
        
        
        Cause
        The database could not be opened for read-only access because its control file did not contain a valid control file checkpoint.
        Action
        Open the database for read/write access to create a valid control file checkpoint. The database can then be opened for read-only access.
        
     
    
    
        ORA-16007
        invalid backup control file checkpoint
        
        
        Cause
        The database could not be opened for read-only access because its control file did not contain a valid control file checkpoint.
        Action
        Open the database for read/write access to create a valid control file checkpoint. The database can then be opened for read-only access.
        
     
    
    
        ORA-16007
        invalid backup control file checkpoint
        
        
        Cause
        The database could not be opened for read-only access because its control file did not contain a valid control file checkpoint.
        Action
        Open the database for read/write access to create a valid control file checkpoint. The database can then be opened for read-only access.