Invalid operation for offline view while being used online (Error 2008)
Some operations are not valid when an offline view is being used online.
You tried to change the buffer mode of the view.
By definition, offline views used online are in table buffer mode. Do not call CURSORSETPROP( ) to change the buffer mode.
You tried to create an index.
Do not use SET ORDER TO or INDEX on offline views while you are using it online.