ORA-01666
        control file is for a standby database
        
        
        Cause
        Attempting to mount, recover, or open a standby database without the appropriate command option to designate a standby database.
        Action
        Use the standby option or appropriate commands, or mount with the primary control file.
        
     
    
    
        ORA-01666
        control file is for a standby database
        
        
        Cause
        Attempting to mount, recover, or open a standby database without the appropriate command option to designate a standby database.
        Action
        Use the standby option or appropriate commands, or mount with the primary control file.
        
     
    
    
        ORA-01666
        control file is for a standby database
        
        
        Cause
        Attempting to mount, recover, or open a standby database without the appropriate command option to designate a standby database.
        Action
        Use the standby option or appropriate commands, or mount with the primary control file.