ABAP Select data from SAP table IDCFMHU_TKITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IDCFMHU_TKITEM table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to IDCFMHU_TKITEM. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the IDCFMHU_TKITEM table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_IDCFMHU_TKITEM TYPE STANDARD TABLE OF IDCFMHU_TKITEM,
      WA_IDCFMHU_TKITEM TYPE IDCFMHU_TKITEM,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <IDCFMHU_TKITEM> TYPE IDCFMHU_TKITEM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IDCFMHU_TKITEM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IDCFMHU_TKITEM
  INTO TABLE IT_IDCFMHU_TKITEM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDCFMHU_TKITEM
*  INTO TABLE @DATA(IT_IDCFMHU_TKITEM2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_IDCFMHU_TKITEM INDEX 1 INTO DATA(WA_IDCFMHU_TKITEM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IDCFMHU_TKITEM ASSIGNING <IDCFMHU_TKITEM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDCFMHU_TKITEM>-MANDT = 1.
<IDCFMHU_TKITEM>-BUKRS = 1.
<IDCFMHU_TKITEM>-TIPUS = 1.
<IDCFMHU_TKITEM>-TNAP = 1.
<IDCFMHU_TKITEM>-FOSZLA = 1.

ENDLOOP.

LOOP AT IT_IDCFMHU_TKITEM INTO WA_IDCFMHU_TKITEM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDCFMHU_TKITEM-ALSZLA, sy-vline,
  WA_IDCFMHU_TKITEM-ISINKOD, sy-vline,
  WA_IDCFMHU_TKITEM-ALSZLA_TIP, sy-vline,
  WA_IDCFMHU_TKITEM-URES, sy-vline,
  WA_IDCFMHU_TKITEM-FOSZLA_NEVE, sy-vline,
  WA_IDCFMHU_TKITEM-KELER_FIOK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDCFMHU_TKITEM you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_IDCFMHU_TKITEM TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_IDCFMHU_TKITEM INTO WA_IDCFMHU_TKITEM.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_IDCFMHU_TKITEM_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
TIPUS TYPE STRING,
TNAP TYPE STRING,
FOSZLA TYPE STRING,
ALSZLA TYPE STRING,
ISINKOD TYPE STRING,
ALSZLA_TIP TYPE STRING,
URES TYPE STRING,
FOSZLA_NEVE TYPE STRING,
KELER_FIOK TYPE STRING,
ALSZLA_NEVE TYPE STRING,
ALSZLA_TIP_MEGN TYPE STRING,
DEVK_MEGN TYPE STRING,
EKOD TYPE STRING,
ENEV TYPE STRING,
ESOROZAT TYPE STRING,
EJELLEG TYPE STRING,
EJELLEG_MENG TYPE STRING,
ALAPCIMLET TYPE STRING,
DEVNEM TYPE STRING,
NYITO_DB TYPE STRING,
BESZALLITAS_DB TYPE STRING,
KISZALLITAS_DB TYPE STRING,
ADOTTTRAN_DB TYPE STRING,
KAPOTTTRAN_DB TYPE STRING,
OTC_DB TYPE STRING,
GIROSF_DB TYPE STRING,
ZARO_DB TYPE STRING,
ZAROLT_DB TYPE STRING,
SZABAD_DB TYPE STRING,
ZARO_NEVERTEK TYPE STRING,
LEJART_DB TYPE STRING,
ESE_ZAROLT_DB TYPE STRING,
EGY_ZAROLT_DB TYPE STRING,
KEDV_ZAROLT_DB TYPE STRING,
ZARO_O_NEVERTEK TYPE STRING,
AKT_TOKEERTEK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDCFMHU_TKITEM_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_IDCFMHU_TKITEM_STR-MANDT sy-vline 
WA_IDCFMHU_TKITEM_STR-BUKRS sy-vline 
WA_IDCFMHU_TKITEM_STR-TIPUS sy-vline 
WA_IDCFMHU_TKITEM_STR-TNAP sy-vline 
WA_IDCFMHU_TKITEM_STR-FOSZLA sy-vline 
WA_IDCFMHU_TKITEM_STR-ALSZLA sy-vline 
WA_IDCFMHU_TKITEM_STR-ISINKOD sy-vline 
WA_IDCFMHU_TKITEM_STR-ALSZLA_TIP sy-vline 
WA_IDCFMHU_TKITEM_STR-URES sy-vline 
WA_IDCFMHU_TKITEM_STR-FOSZLA_NEVE sy-vline 
WA_IDCFMHU_TKITEM_STR-KELER_FIOK sy-vline 
WA_IDCFMHU_TKITEM_STR-ALSZLA_NEVE sy-vline 
WA_IDCFMHU_TKITEM_STR-ALSZLA_TIP_MEGN sy-vline 
WA_IDCFMHU_TKITEM_STR-DEVK_MEGN sy-vline 
WA_IDCFMHU_TKITEM_STR-EKOD sy-vline 
WA_IDCFMHU_TKITEM_STR-ENEV sy-vline 
WA_IDCFMHU_TKITEM_STR-ESOROZAT sy-vline 
WA_IDCFMHU_TKITEM_STR-EJELLEG sy-vline 
WA_IDCFMHU_TKITEM_STR-EJELLEG_MENG sy-vline 
WA_IDCFMHU_TKITEM_STR-ALAPCIMLET sy-vline 
WA_IDCFMHU_TKITEM_STR-DEVNEM sy-vline 
WA_IDCFMHU_TKITEM_STR-NYITO_DB sy-vline 
WA_IDCFMHU_TKITEM_STR-BESZALLITAS_DB sy-vline 
WA_IDCFMHU_TKITEM_STR-KISZALLITAS_DB sy-vline 
WA_IDCFMHU_TKITEM_STR-ADOTTTRAN_DB sy-vline 
WA_IDCFMHU_TKITEM_STR-KAPOTTTRAN_DB sy-vline 
WA_IDCFMHU_TKITEM_STR-OTC_DB sy-vline 
WA_IDCFMHU_TKITEM_STR-GIROSF_DB sy-vline 
WA_IDCFMHU_TKITEM_STR-ZARO_DB sy-vline 
WA_IDCFMHU_TKITEM_STR-ZAROLT_DB sy-vline 
WA_IDCFMHU_TKITEM_STR-SZABAD_DB sy-vline 
WA_IDCFMHU_TKITEM_STR-ZARO_NEVERTEK sy-vline 
WA_IDCFMHU_TKITEM_STR-LEJART_DB sy-vline 
WA_IDCFMHU_TKITEM_STR-ESE_ZAROLT_DB sy-vline 
WA_IDCFMHU_TKITEM_STR-EGY_ZAROLT_DB sy-vline 
WA_IDCFMHU_TKITEM_STR-KEDV_ZAROLT_DB sy-vline 
WA_IDCFMHU_TKITEM_STR-ZARO_O_NEVERTEK sy-vline 
WA_IDCFMHU_TKITEM_STR-AKT_TOKEERTEK sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.