Hi,
you can do this in no.of ways.
lets try in this way
for instance you have data in itab_1 and the result that you needed will come in itab_2
Loop at itab_1 into wa_1.
wa_2-f1 = wa_1-f1.
wa_2-f2 = wa_1-f2.
wa_2-f3 = wa_1-f3.
wa_2-f4 = wa_1-f4.
wa_2-f5 = wa_1-f5.
collect wa_2 into itab_2.
clear : wa_1,wa_2.
endloop.
Let me know if you have any doubts or questions 
Thanks
SaiKrishna