Best way to process line items in an internal table?

Hiya,

I have an internal table that's has columns:

EBELN - Document number

EBELP - Document Item

Quantity

Price
Other data,

blah, blah, blah

Now I would like to process this internal table so that each Document and its items are processed together.

So I was thinking I would need to split them out.

I was thinking of doing something like this:

Loop at itab into wa_itab.

if sy-tabix = 1.

     Append wa_itab to another_itab.

     Continue.

endif.

if wa_itab-ebeln = another_itab-ebeln.

     continue.

else.

     Process all the items for the document via another_itab.

     clear another_itab.

endif.

Endloop.

Would that be okay or is there a better way of doing something like this?

Thanks for any input.