Into corresponding FILES

HI,

I have :

<i>LOOP AT ITAB1.

AT NEW POPER.

read table itab1 index sy-tabix.

append itab1 to itab2.

ENDAT.

ENDLOOP.

delete from Z99BW92.

INSERT Z99BW92 FROM TABLE ITAB2." ACCEPTING DUPLICATE KEYS.</i>

ITAB2 has 4 fields that have diferents orden than Z99BW92.

How can i use "corresponding files " here?

thanks a lot