building table dynamically

Hi folks!

Does anybody know whether it is possible to build an internal table from DDIC-structures dynamically?

I have a deep structured itab_upload(whose structure is defined in the DDIC), which contains 2 fields(Number Name) and a third field which contains itab_desc.

This itab_desc can contain either 2 fields(Number Name) and a third field which contains another itab_desc or 3 fields for numbers(without any other itab).If itab_desc contains another itab_desc, the second itab_desc contains only 3 fields for numbers and names...

help will be very appreciated and points will be rewarded!

Felix