ABAP动态内表 创建一个通用表查询器

废话不多说,直接上码

*&---------------------------------------------------------------------*
*& Report  ZDYNAMIC_ITAB_PRACTICE
*&
*&---------------------------------------------------------------------*
*&
*&通用表查询器
*&---------------------------------------------------------------------*

report zdynamic_itab_practice.

data: gt_components type cl_abap_structdescr=>component_table,
      gs_component  like line of gt_components.

parameters:p_table type dd02l-tabname obligatory.

select-options:s_field for p_table.

data:gr_table type ref to data,
     gr_line  type ref to data.

field-symbols:<ft_table> type standard table ,
               <fs_line> type any,
               <fs_field> type any.

start-of-selection.

  "动态创建内表结构并实例化
  perform create_dynamic_itab.

  "动态执行sql查询
  perform select_data_dynamically.

  "动态显示alv
  perform display_dynamic_alv.

*&---------------------------------