七十四、SAP中内表的4中删除方法

*&---------------------------------------------------------------------*
*& Report Z_TIANPAN_20190717_HELLO
*&---------------------------------------------------------------------*
*&
*&---------------------------------------------------------------------*
REPORT z_tianpan_20190717_hello.

DATA : BEGIN OF m_table,
         key TYPE string, "关键字段，用于用这列来统计V1、V2值（关键字段可多个）
         v1  TYPE i,
         v2  TYPE i,
       END OF m_table.

DATA : t_data LIKE m_table OCCURS 0 WITH HEADER LINE . "定义数据内表

DO 8 TIMES .
  IF sy-index < 3 .
    t_data-key = ‘A‘ .
    t_data-v1 = sy-index .
    t_data-v2 = sy-index + 1 .
  ELSEIF sy-index < 6 .
    t_data-key = ‘B‘ .
    t_data-v1 = sy-index .
    t_data-v2 = sy-index - 1 .
  ELSE .
    t_data-key = ‘C‘ .
    t_data-v1 = sy-index - 1 .
    t_data-v2 = sy-index - 2 .
  ENDIF .
  APPEND t_data.
ENDDO .

*按条件删除
DELETE t_data WHERE key = ‘C‘ .

*按序号删除
DELETE t_data[] INDEX 3.

*删除多行
DELETE t_data[] FROM 2 TO 4.

*删除重复数据
DELETE ADJACENT DUPLICATES FROM t_data.

WRITE : ‘t_data内表数据:‘ .
LOOP AT t_data.
  WRITE : / ‘ ‘ ,t_data-key ,t_data-v1, t_data-v2.
ENDLOOP .
WRITE : sy-uline .

* 字符串拼接
WRITE: / ‘青青子衿‘ & ‘悠悠我心‘.

BREAK-POINT.