reg: need the logic -modify statement

Hi ,

I have 2 loops in the logic .

It_tab1 contains the data

Matnr Material type

1234 HALB

2345 HALB

IT_TAB2 contains the below data

Matnr extra Plant Date level

1234 0234566 1001 01/08/2009 1

1234 0234568 1001 01/09/2009. 2

Here I am writing the logic like below.

Loop at It_tab1.

It_final_data-matnr = it_tab1-matnr.

It_final_data-halb = it_tab1-halb.

It_final_data-level = it_tab1-level.

Modify it_final_data.

Loop at it_tab2 where matnr = it_tab1-matnr.

It_final_data-extra = it_tab2-extra.

It_final_data-date = it_tab2-date.

Modify it_final_data.

Endloop.

Endloop.

In report output showing like for first Material ( 1234)

1234 HALB 1 0234568 01/09/2009

1234 HALB 2 0234568 01/09/2009

but I want the data like below

1234 HALB 1 1001 0234566 01/08/2009

1234 HALB 2 1001 0234568 01/09/2009

The problem is modify statement modifying the existing data. Please help me in this .

Regards,

Ajay