ORA-16140
        standby online logs have not been recovered
        
        
        Cause
        The standby database has online logs containing redo that has not been recovered.  Activating the standby would lose redo contained in the online logs.
        Action
        To recover the standby online logs issue the following command: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH.  Then reissue the ALTER DATABASE ACTIVATE STANDBY DATABASE command. To activate the standby without recovering the online logs, issue the following command: ALTER DATABASE ACTIVATE STANDBY DATABASE SKIP STANDBY LOGFILE.
        
     
    
    
        ORA-16140
        standby online logs have not been recovered
        
        
        Cause
        The standby database has online logs containing redo that has not been recovered.  Activating the standby would lose redo contained in the online logs.
        Action
        To recover the standby online logs issue the following command: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH.  Then reissue the ALTER DATABASE ACTIVATE STANDBY DATABASE command. To activate the standby without recovering the online logs, issue the following command: ALTER DATABASE ACTIVATE STANDBY DATABASE SKIP STANDBY LOGFILE.
        
     
    
    
        ORA-16140
        standby online logs have not been recovered
        
        
        Cause
        The standby database has online logs containing redo that has not been recovered.  Activating the standby would lose redo contained in the online logs.
        Action
        To recover the standby online logs issue the following command: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH.  Then reissue the ALTER DATABASE ACTIVATE STANDBY DATABASE command. To activate the standby without recovering the online logs, issue the following command: ALTER DATABASE ACTIVATE STANDBY DATABASE SKIP STANDBY LOGFILE.