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problem in creating dynamic internal table

Hi Experts,

I am trying creating a dynamic internal table.

But I am getting the error 'The field string "LT_GENTAB" contains no fields. 4 LT_GENTAB".

Can anybody tell me what is the error and how to solve it.



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2 Answers

  • Posted on Apr 16, 2010 at 04:08 AM

    We dont have telepathic powers. Please post the code you are using

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  • author's profile photo Former Member
    Former Member
    Posted on Apr 16, 2010 at 05:15 AM

    TYPE-POOLS: abap.


    lr_structdescr TYPE REF TO cl_abap_structdescr,

    lr_tabledescr TYPE REF TO cl_abap_tabledescr,

    lr_datadescr TYPE REF TO cl_abap_datadescr,

    lt_components TYPE abap_component_tab,

    ls_component TYPE LINE OF abap_component_tab,

    lr_wa TYPE REF TO data,

    lr_tab TYPE REF TO data.

    DATA: lv_index_num(3) TYPE n.

    DATA: lv_index_char(3) TYPE c.


    FIELD-SYMBOLS: <fs_tab> TYPE table.


    DO 20 TIMES.

    lv_index_num = sy-index.

    lv_index_char = lv_index_num.

    CONCATENATE 'value' lv_index_char INTO ls_component-name.

    ls_component-type ?= cl_abap_elemdescr=>get_c( p_length = 10 ).

    INSERT ls_component INTO TABLE lt_components.


    • get structure descriptor -> lr_STRUCTDESCR

    lr_structdescr ?= cl_abap_structdescr=>create( lt_components ).

    • create work area of structure lr_STRUCTDESCR -> lr_WA

    CREATE DATA lr_wa TYPE HANDLE lr_structdescr.

    ASSIGN lr_wa->* TO <fs_wa>.

    lr_datadescr ?= lr_structdescr.

    lr_tabledescr ?= cl_abap_tabledescr=>create( lr_datadescr ).

    • Create dynmaic internal table, <FS_TAB> will be your dynamic internal table

    CREATE DATA lr_tab TYPE HANDLE lr_tabledescr.

    ASSIGN lr_tab->* TO <fs_tab>.

    create a deep structure for dynamic internal table

    data: begin of itab occurs 0,



    size(2) type n,

    quant type i,

    end of itab,

    begin of wa_out,



    size1(2) type n,

    size2(2) type n,

    size3(2) type n,

    size4(2) type n,

    size5(2) type n,

    size6(2) type n,

    size7(2) type n,

    size8(2) type n,

    size9(2) type n,

    sizea(2) type n,

    sizeb(2) type n,

    sizec(2) type n,

    sized(2) type n,

    sizee(2) type n,

    sizef(2) type n,

    end of wa_out,

    wa_head like wa_out,

    tab_out like table of wa_out.

    data: begin of ftab occurs 0,

    s_val(2) type n,

    s_idx type i,

    end of ftab.

    field-symbols: <col>.

    wa_head-material = 'Material'.

    wa_head-unit = 'uom'.

    SORT itab by size.

    ftab-s_idx = 2.

    LOOP AT itab.

    on change of itab-size.

    add 1 to ftab-idx.

    ftab-s_val = itab-size.

    append ftab.

    assign COMPONENT ftab-s_idx OF STRUCTURE wa_head to <col>.

    <col> = itab-size.



    sort itab by material.

    LOOP AT itab.

    on CHANGE OF itab-material.

    IF wa_out is not initial.

    append wa_out to tab_out.


    clear wa_out.

    wa_out-material = itab-material.


    wa_out-unit = itab-unit.

    READ TABLE ftab WITH KEY s_val = itab-size.

    if sy-subrc ne 0.

    • do something awfully impressive


    ASSIGN COMPONENT ftab-s_idx OF STRUCTURE wa_out to <col>.

    <col> = itab-quant.


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