problem with work area move-corresponding

Hi ,

im changing a very old program to increase its performance . Im using work areas for it .

There are statements :

LOOP AT itab.
    MOVE-CORRESPONDING itab TO itab2 .
endloop .

now i have workarea like wa_itab and wa_itab2 . also tables i_itab and i_itab2 without header line.

what will be my equivalent statements for above code . i dnt hve data to test so requires help .

Regards .