相當于分組顯示。第一行顯示分組的頭，下面顯示明細。

例程1：采購訂單主從表ALV層次輸出

*&---------------------------------------------------------------------*
*& Report Z_T_HIERSEQ_ALV *
*& *
*&---------------------------------------------------------------------*
*& 采購訂單主從表ALV層次輸出 *
*& *
*&---------------------------------------------------------------------*

REPORT z_t_hierseq_alv .
TABLES: ekko,ekpo.
SELECT-OPTIONS s_ebeln FOR ekko-ebeln.
*1、在程序里包含SLIS

TYPE-POOLS:slis.
*2、聲明主表和明細表

DATA: BEGIN OF headertab OCCURS 0,
ebeln LIKE ekko-ebeln,
bstyp LIKE ekko-bstyp,
bsart LIKE ekko-bsart,
statu LIKE ekko-statu,
END OF headertab.

DATA: BEGIN OF itemtab OCCURS 0,
ebeln LIKE ekpo-ebeln,
ebelp LIKE ekpo-ebelp,
matnr LIKE ekpo-matnr,
werks LIKE ekpo-werks,
menge LIKE ekpo-menge,
netpr LIKE ekpo-netpr,
peinh LIKE ekpo-peinh,
netwr LIKE ekpo-netwr,
END OF itemtab.

DATA: i_fieldcat TYPE slis_t_fieldcat_alv.
DATA: v_repid LIKE sy-repid."當前程序名
*3、申明主表和明細表的名稱變量

DATA: g_tabname_header TYPE slis_tabname,
g_tabname_item TYPE slis_tabname.

*4、聲明主表和明細表連接關鍵字變量
DATA: gs_keyinfo TYPE slis_keyinfo_alv.

INITIALIZATION.
v_repid = sy-repid.

START-OF-SELECTION.

PERFORM get_data.

END-OF-SELECTION.

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*5、獲取頭表輸出表頭字段名稱

CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'
EXPORTING
i_program_name = v_repid "當前程序名
i_internal_tabname = 'HEADERTAB' "主表名
i_inclname = v_repid "當前程序名
i_bypassing_buffer = 'X'
i_buffer_active = ''
CHANGING
ct_fieldcat = i_fieldcat "ALV輸出的主表標題
EXCEPTIONS
inconsistent_interface = 1
program_error = 2
OTHERS = 3.
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno WITH sy-msgv1
sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
*6、獲取從表輸出表頭字段名稱
CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'
EXPORTING
i_program_name = sy-repid
i_internal_tabname = 'ITEMTAB'
i_inclname = v_repid
i_bypassing_buffer = 'X'
i_buffer_active = ''
CHANGING
ct_fieldcat = i_fieldcat
EXCEPTIONS
inconsistent_interface = 1
program_error = 2
OTHERS = 3.
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno WITH sy-msgv1
sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.

*7、設置主從表的關聯字段，最多可以設置五個字段關聯。
gs_keyinfo-header01 = 'EBELN'.
gs_keyinfo-item01 = 'EBELN'.
*8、設置主表和明細表變量對應的內表名稱
g_tabname_header = 'HEADERTAB'."主表
g_tabname_item = 'ITEMTAB'."明細表
*9、調用層次ALV輸出函數
CALL FUNCTION 'REUSE_ALV_HIERSEQ_LIST_DISPLAY'
EXPORTING
i_callback_program = v_repid
it_fieldcat = i_fieldcat
i_save = 'A'
i_tabname_header = g_tabname_header
i_tabname_item = g_tabname_item
is_keyinfo = gs_keyinfo
i_bypassing_buffer = 'X'
i_buffer_active = ' '
TABLES
t_outtab_header = headertab
t_outtab_item = itemtab
EXCEPTIONS
program_error = 1
OTHERS = 2.
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.

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*&---------------------------------------------------------------------*
*& Form get_data
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
FORM get_data.

SELECT ebeln bstyp bsart statu
INTO TABLE headertab
FROM ekko
WHERE ebeln IN s_ebeln.

IF NOT headertab[] IS INITIAL.
SELECT ebeln ebelp matnr werks menge netpr peinh netwr
INTO TABLE itemtab
FROM ekpo
FOR ALL ENTRIES IN headertab
WHERE ebeln = headertab-ebeln.
ENDIF.
ENDFORM. "get_data

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還有官方的demo BALVHD01詳細參見http://www.se80.co.uk/sapreports/b/balv/balvhd01.htm

總結

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