On this example, I'll create three internal tables into one internal structure created (dynamically).
1st: create three internal tables dynamically.
2st: create one strusture dynamically with the three iTabs created on first pass.
3st: return final structure dynamically created.
DATA:
l_comp_tab TYPE cl_abap_structdescr=>component_table,
l_comp_tab2 TYPE cl_abap_structdescr=>component_table,
l_comp TYPE cl_abap_structdescr=>component,
l_comp2 TYPE cl_abap_structdescr=>component,
lv_size TYPE i, "Field size
lv_decm TYPE i, "Field decimal places.
lv_tabix TYPE numc1, "Field decimal places.
lv_tab_name TYPE char10,
lo_new_tab TYPE REF TO cl_abap_tabledescr,
l_estrutura TYPE REF TO cl_abap_structdescr,
l_struc_final TYPE REF TO data.
DO 3 TIMES. " Create 3 tables only... Remember: this is just example!
CLEAR: l_comp , l_comp_tab[].
ADD 1 TO lv_tabix.
lv_size = 10.
l_comp-name = 'FIELD_CHAR'.
l_comp-type = cl_abap_elemdescr=>get_c( p_length = lv_size ).
APPEND l_comp TO l_comp_tab. CLEAR l_comp.
l_comp-name = 'FIELD_INT'.
l_comp-type = cl_abap_elemdescr=>get_i( ).
APPEND l_comp TO l_comp_tab. CLEAR l_comp.
lv_size = 10.
l_comp-name = 'FIELD_NUM'.
l_comp-type = cl_abap_elemdescr=>get_n( p_length = lv_size ).
APPEND l_comp TO l_comp_tab. CLEAR l_comp.
lv_size = 9.
lv_decm = 2.
l_comp-name = 'FIELD_NUMDEC'.
l_comp-type = cl_abap_elemdescr=>get_p( p_length = lv_size p_decimals = lv_decm ).
APPEND l_comp TO l_comp_tab. CLEAR l_comp.
l_comp-name = 'FIELD_DATE'.
l_comp-type = cl_abap_elemdescr=>get_d( ).
APPEND l_comp TO l_comp_tab. CLEAR l_comp.
IF l_comp_tab[] IS NOT INITIAL.
CONCATENATE 'TAB_' lv_tabix INTO lv_tab_name.
CONDENSE lv_tab_name.
CLEAR: l_estrutura, lo_new_tab.
TRY .
l_estrutura = cl_abap_structdescr=>create( l_comp_tab ).
TRY.
lo_new_tab = cl_abap_tabledescr=>create( p_line_type = l_estrutura
p_table_kind = cl_abap_tabledescr=>tablekind_std
p_unique = abap_false ).
CLEAR l_comp2.
l_comp2-name = lv_tab_name.
l_comp2-type = lo_new_tab.
APPEND l_comp2 TO l_comp_tab2.
CATCH cx_sy_table_attributes.
" Error message...
CATCH cx_sy_table_key_specification.
" Error message...
ENDTRY.
CATCH cx_sy_struct_attributes.
" Error message...
CATCH cx_sy_struct_comp_name.
" Error message...
CATCH cx_sy_struct_comp_type.
" Error message...
CATCH cx_sy_struct_suffix_name.
" Error message...
ENDTRY.
ENDIF.
ENDDO.
TRY.
CLEAR: l_estrutura.
l_estrutura = cl_abap_structdescr=>create( l_comp_tab2 ).
CREATE DATA l_struc_final TYPE HANDLE l_estrutura.
CATCH cx_sy_struct_comp_name.
" Error message...
CATCH cx_sy_struct_creation.
" Error message...
CATCH cx_sy_table_creation .
" Error message...
ENDTRY.
BREAK-POINT. "here, on this breakpoint ...you can analyze the final structure (l_struc_final) created.
