ORA-19973
        flashback database is not enabled
        
        
        Cause
        Physical standby transition to snapshot standby required only one instance left running if flashback database logging was not enabled.
        Action
        Shutdown all but one instance, then retry the command.
        
     
    
    
        ORA-19973
        flashback database is not enabled
        
        
        Cause
        Physical standby transition to snapshot standby required only one instance left running if flashback database logging was not enabled.
        Action
        Shutdown all but one instance, then retry the command.
        
     
    
    
        ORA-19973
        flashback database is not enabled
        
        
        Cause
        Physical standby transition to snapshot standby required only one instance left running if flashback database logging was not enabled.
        Action
        Shutdown all but one instance, then retry the command.