facing problem in getting data in different field

hi,

i have made a report in ALV format. n the whole code is this..

TABLES: VBAK,vbap.

type-pools: slis. "ALV Declarations

SELECT-OPTIONS:

s_sales for vbak-kunnr obligatory,

s_date for VBAK-audat obligatory.

*Data Declaration

*----

types: begin of s_sales,

kunnr like vbak-kunnr,

ernam like VBRP-ernam,

audat like VBAK-audat,

aufnr like VBAK-aufnr,

KBMENG like vbap-KWMENG,

matnr like vbap-matnr,

matwa like vbap-matkl,

end of s_sales.

DATA: IT_VBAKUK TYPE STANDARD TABLE OF s_sales INITIAL SIZE 0,

WA_sales TYPE s_sales.

*ALV data declarations.

data: fieldcatalog type slis_t_fieldcat_alv with header line,

gd_tab_group type slis_t_sp_group_alv,

gd_layout type slis_layout_alv,

gd_repid like sy-repid.

**************************************************************************

*start-of-selection.

START-OF-SELECTION.

perform data_retrieval.

perform build_fieldcatalog.

perform build_layout.

perform display_alv_report.

&----

*& Form build_fieldcatalog

&----

• text

----

form build_fieldcatalog.

fieldcatalog-fieldname = 'KUNNR'.

fieldcatalog-seltext_m = 'Customer Code'.

fieldcatalog-col_pos = 1.

append fieldcatalog to fieldcatalog.

clear fieldcatalog.

fieldcatalog-fieldname = 'ernam'.

fieldcatalog-seltext_m = 'Customer Name'.

fieldcatalog-col_pos = 2.

append fieldcatalog to fieldcatalog.

clear fieldcatalog.

fieldcatalog-fieldname = 'stadat'.

fieldcatalog-seltext_m = 'Order Date'.

fieldcatalog-col_pos = 3.

append fieldcatalog to fieldcatalog.

clear fieldcatalog.

fieldcatalog-fieldname = 'aufnr'.

fieldcatalog-seltext_m = 'Order No'.

fieldcatalog-col_pos = 4.

append fieldcatalog to fieldcatalog.

clear fieldcatalog.

fieldcatalog-fieldname = 'KWMENG'.

fieldcatalog-seltext_m = 'Quantity'.

fieldcatalog-col_pos = 5.

append fieldcatalog to fieldcatalog.

clear fieldcatalog.

fieldcatalog-fieldname = 'matnr'.

fieldcatalog-seltext_m = 'Material Code'.

fieldcatalog-col_pos = 6.

append fieldcatalog to fieldcatalog.

clear fieldcatalog.

fieldcatalog-fieldname = 'matkl'.

fieldcatalog-seltext_m = 'Material Description'.

fieldcatalog-col_pos = 7.

append fieldcatalog to fieldcatalog.

clear fieldcatalog.

endform. "build_fieldcatalog

&----

*& Form build_layout

&----

• text

----

form build_layout.

gd_layout-no_input = 'X'.

gd_layout-colwidth_optimize = 'X'.

endform. "build_layout

&----

*& Form display_alv_report

&----

• text

----

form display_alv_report.

gd_repid = sy-repid.

call function 'REUSE_ALV_GRID_DISPLAY'

EXPORTING

i_callback_program = gd_repid

is_layout = gd_layout

it_fieldcat = fieldcatalog[]

i_save = 'X'

TABLES

t_outtab = IT_VBAKUK

EXCEPTIONS

program_error = 1

others = 2.

if sy-subrc <> 0.

endif.

endform. " DISPLAY_ALV_REPORT

&----

*& Form data_retrieval

&----

• text

----

form data_retrieval.

select vbak_{kunnr VBak}ernam VBAk_{audat vbak}aufnr vbap_{KWMENG vbap}matnr vbap~matkl

up to 10 rows

from vbak inner join vbap on vbak_{vbeln = vbap}vbeln

into table IT_VBAKUK.

endform. "data_retrieval

When a execute this query it get this result:

Customer code Customer No. Order Date *Order No. * *Quantity * Material code Material Description

0000001390 0000001390 0000001390 0000001390 0000001390 0000001390 0000001390

0000001175 0000001175 0000001175 0000001175 0000001175 0000001175 0000001175

0000001175 0000001175 0000001175 0000001175 0000001175 0000001175 0000001175

0000001175 0000001175 0000001175 0000001175 0000001175 0000001175 0000001175

0000001175 0000001175 0000001175 0000001175 0000001175 0000001175 0000001175

0000001001 0000001001 0000001001 0000001001 0000001001 0000001001 0000001001

0000002200 0000002200 0000002200 0000002200 0000002200 0000002200 0000002200

0000002200 0000002200 0000002200 0000002200 0000002200 0000002200 0000002200

0000002200 0000002200 0000002200 0000002200 0000002200 0000002200 0000002200

0000002200 0000002200 0000002200 0000002200 0000002200 0000002200 0000002200

You can see in all column data is repeating even tough i have given different field name...

Kindly give me solution of this problem.

Thanks n Regards.