I have a dynamic internal table that contains some fields from another internal table as well as some weekly bucket fields. The problem I have is trying to move data from the internal table to the dynamic internal table, i.e. checking fieldnames dynamically. Does anyone have any idea how I can do this? I've tried using cl_abap_typedescr=>describe_by_data but that doesn't seem to work for an internal table. Any help would be appeciated.