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[代码]如何取得表/结构的列名字(cl_abap_structdescr)

石头 3月 1, 2017 Report 7,011 views 0

调用类cl_abap_structdescr中的方法describe_by_data()和get_ddic_field_list()能得到表或结构的列名字(colomn name).

代码：

REPORT ztest_convers_row.

DATA:
  gwa_data   TYPE t001w,
  desc_struc TYPE REF TO cl_abap_structdescr,
  git_fields TYPE ddfields.
FIELD-SYMBOLS:
  <gfs_component> TYPE dfies.


desc_struc ?= cl_abap_structdescr=>describe_by_data( gwa_data ).
git_fields = desc_struc->get_ddic_field_list( ).

LOOP AT git_fields ASSIGNING <gfs_component>.
  WRITE:/ <gfs_component>-fieldname.
ENDLOOP.