안녕하세요. 혼자 공부하기엔 너무 벅찬 abap을 접하게 되었습니다.

책에 있는 그대로를 썻는데 화면은 나오는데 값을 불러오질 못합니다. 

조회 창 구성하는 부분에서 오류가 있는지

몇시간째 이부분에서 계속 수정하며

하고 있는데 저도 답답해서 맨날 보기만 하다가 질문드립니다..

REPORT  ZDESK.

TABLES : zinput,
         zoutput,
         zvor.

DATA : begin of it_result occurs 0.
   include structure zinput.
   data : name type zoutput-name,
          chart type zoutput-chart,
          end of it_result.

          initialization.
type-POOLs : slis.
          data : gv_status type slis_formname.
          data : gs_extab type slis_t_extab.

  data : gt_fieldcat type slis_t_fieldcat_alv,
                gt_fieldcat_in like line of gt_fieldcat.

          data : gs_layout type slis_layout_alv.

SELECTION-SCREEN BEGIN OF block b1 with frame title text-001.

             parameters : so_idno type zinput-idno.

parameters : pa_name type zoutput-name.

             parameters : so_chart type zoutput-chart.

            SELECTION-SCREEN end of BLOCK b1.

START-OF-SELECTION.
            perform select_data.
            perform modify_data.
            perform set_fieldcat.

*&---------------------------------------------------------------------*
*&      Form  SELECT_DATA
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM SELECT_DATA .
data : pa_name1(11).
clear pa_name1.
CONCATENATE pa_name1 '%' INTO pa_name1.
clear it_result. refresh it_result.
select a~idno a~address
       a~phone a~tel
       a~blood a~height
       a~weight a~gender
       b~chart b~name

INTO CORRESPONDING FIELDS OF TABLE it_result
  from zinput as a inner join zoutput as b
   on a~idno = b~idno
   where a~idno = so_idno.
ENDFORM.                    " SELECT_DATA

*&---------------------------------------------------------------------*
*&      Form  SET_FIELDCAT
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*

FORM SET_FIELDCAT .
clear : gt_fieldcat_in, gt_fieldcat.
gt_fieldcat_in-fieldname = 'CHART'.
gt_fieldcat_in-col_pos = '1'.
gt_fieldcat_in-just = 'L'.
gt_fieldcat_in-reptext_ddic = '차트번호'.
append gt_fieldcat_in to gt_fieldcat.

set_fieldcat이부분은 이렇게 차트번호 아래로 이름 주민번호 등등등 있습니다.