Create Dynamic Structure based on Field-Symbol

Question

Hi Experts!!
I need to create a structure with dynamic structure included within.
I have a parameter on sel. screen in which we provide table name.
PARAMETERS: p_table TYPE tabname.
FIELD-SYMBOLS: <gt_data> TYPE ANY TABLE.
CREATE DATA gr_data TYPE TABLE OF (p_table).
ASSIGN gr_data-* TO <gt_data>.
Now I need a structure like below:
TYPES: BEGIN OF type_test,
struct TYPE <gt_data>, " dynamic structure based on table name entered on sel. screen
fld1 TYPE c,
fld2 TYPE n,
END OF type_test.
Can somebody suggest how to achieve this?
Your help is highly appreciated. Thanks a lot

Answer 1

You can view this thread where our friend Marcin rocks .. Dynamically create a type
FIELD-SYMBOLS: <gt_data> TYPE ANY TABLE.
FIELD-SYMBOLS: <gs_wa> TYPE ANY.
data:wf_ref type ref to data.
DATA:i_comp TYPE cl_abap_structdescr=>component_table,
     i_tot_comp TYPE cl_abap_structdescr=>component_table.
CREATE DATA gr_data TYPE TABLE OF (p_table).
ASSIGN gr_data-* TO <gt_data>.
create data wf_ref like line of <gt_data>.
assign wf_ref->* to <gs_wa>.
*--Getting Compoents from existing type
  lf_struct ?= cl_abap_typedescr=>describe_by_name( '<GS_WA>' ).
  i_comp = lf_struct->get_components( ).
  APPEND LINES OF i_comp TO i_tot_comp.
The idea is Get all the field details available it to i_tot_comp, then append individual fields manually to
i_tot_comp as explained in the link and create a dynamic structure and table.