ABAP Select data from SAP table VVKKDRKO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VVKKDRKO 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 VVKKDRKO. 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 VVKKDRKO 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_VVKKDRKO TYPE STANDARD TABLE OF VVKKDRKO,
      WA_VVKKDRKO TYPE VVKKDRKO,
      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: <VVKKDRKO> TYPE VVKKDRKO.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VVKKDRKO
*  INTO TABLE @DATA(IT_VVKKDRKO2).
*--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_VVKKDRKO INDEX 1 INTO DATA(WA_VVKKDRKO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VVKKDRKO>-MANDT = 1.
<VVKKDRKO>-LAUFD = 1.
<VVKKDRKO>-LAUFI = 1.
<VVKKDRKO>-GPART = 1.
<VVKKDRKO>-VKONT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VVKKDRKO-MAZAE, sy-vline,
  WA_VVKKDRKO-AKZAE, sy-vline,
  WA_VVKKDRKO-VTREF, sy-vline,
  WA_VVKKDRKO-GSBER, sy-vline,
  WA_VVKKDRKO-INKEY, sy-vline,
  WA_VVKKDRKO-DOKID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VVKKDRKO 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_VVKKDRKO 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_VVKKDRKO INTO WA_VVKKDRKO.


*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.

*Conversion exit ALPHA, internal->external for field GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVKKDRKO-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVKKDRKO-GPART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVKKDRKO-VKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVKKDRKO-VKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VTREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVKKDRKO-VTREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVKKDRKO-VTREF.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_VVKKDRKO_STR, 
MANDT TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
MAZAE TYPE STRING,
AKZAE TYPE STRING,
VTREF TYPE STRING,
GSBER TYPE STRING,
INKEY TYPE STRING,
DOKID TYPE STRING,
EINKZ TYPE STRING,
FAEDN TYPE STRING,
FREQT TYPE STRING,
MTEXT TYPE STRING,
VSARX_VX TYPE STRING,
AUSDT TYPE STRING,
WAERS TYPE STRING,
MSALM TYPE STRING,
MSALE TYPE STRING,
MGEBM TYPE STRING,
MGEBE TYPE STRING,
MINTM TYPE STRING,
MINTE TYPE STRING,
TITEL_EMP TYPE STRING,
T_ACA_EMP TYPE STRING,
NAME1_EMP TYPE STRING,
NAME2_EMP TYPE STRING,
NAMEL_EMP TYPE STRING,
STRAS_EMP TYPE STRING,
HNUM_EMP TYPE STRING,
LAND_EMP TYPE STRING,
PLZ_EMP TYPE STRING,
ORT_EMP TYPE STRING,
TITEL_ZUS TYPE STRING,
T_ACA_ZUS TYPE STRING,
NAME1_ZUS TYPE STRING,
NAME2_ZUS TYPE STRING,
NAMEL_ZUS TYPE STRING,
STRAS_ZUS TYPE STRING,
HNUM_ZUS TYPE STRING,
LAND_ZUS TYPE STRING,
PLZ_ZUS TYPE STRING,
ORT_ZUS TYPE STRING,
NAME1_ABS TYPE STRING,
NAME2_ABS TYPE STRING,
STRAS_ABS TYPE STRING,
LAND_ABS TYPE STRING,
PLZ_ABS TYPE STRING,
ORT_ABS TYPE STRING,
BNKLZ_ABS TYPE STRING,
BNKKN_ABS TYPE STRING,
BNKNA_ABS TYPE STRING,
KDFEL TYPE STRING,
NAME1_LD TYPE STRING,
NAME2_LD TYPE STRING,
STRAS_LD TYPE STRING,
LAND_LD TYPE STRING,
PLZ_LD TYPE STRING,
ORT_LD TYPE STRING,
TELNR_LD TYPE STRING,
ERLDT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VVKKDRKO_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_VVKKDRKO_STR-MANDT sy-vline 
WA_VVKKDRKO_STR-LAUFD sy-vline 
WA_VVKKDRKO_STR-LAUFI sy-vline 
WA_VVKKDRKO_STR-GPART sy-vline 
WA_VVKKDRKO_STR-VKONT sy-vline 
WA_VVKKDRKO_STR-MAZAE sy-vline 
WA_VVKKDRKO_STR-AKZAE sy-vline 
WA_VVKKDRKO_STR-VTREF sy-vline 
WA_VVKKDRKO_STR-GSBER sy-vline 
WA_VVKKDRKO_STR-INKEY sy-vline 
WA_VVKKDRKO_STR-DOKID sy-vline 
WA_VVKKDRKO_STR-EINKZ sy-vline 
WA_VVKKDRKO_STR-FAEDN sy-vline 
WA_VVKKDRKO_STR-FREQT sy-vline 
WA_VVKKDRKO_STR-MTEXT sy-vline 
WA_VVKKDRKO_STR-VSARX_VX sy-vline 
WA_VVKKDRKO_STR-AUSDT sy-vline 
WA_VVKKDRKO_STR-WAERS sy-vline 
WA_VVKKDRKO_STR-MSALM sy-vline 
WA_VVKKDRKO_STR-MSALE sy-vline 
WA_VVKKDRKO_STR-MGEBM sy-vline 
WA_VVKKDRKO_STR-MGEBE sy-vline 
WA_VVKKDRKO_STR-MINTM sy-vline 
WA_VVKKDRKO_STR-MINTE sy-vline 
WA_VVKKDRKO_STR-TITEL_EMP sy-vline 
WA_VVKKDRKO_STR-T_ACA_EMP sy-vline 
WA_VVKKDRKO_STR-NAME1_EMP sy-vline 
WA_VVKKDRKO_STR-NAME2_EMP sy-vline 
WA_VVKKDRKO_STR-NAMEL_EMP sy-vline 
WA_VVKKDRKO_STR-STRAS_EMP sy-vline 
WA_VVKKDRKO_STR-HNUM_EMP sy-vline 
WA_VVKKDRKO_STR-LAND_EMP sy-vline 
WA_VVKKDRKO_STR-PLZ_EMP sy-vline 
WA_VVKKDRKO_STR-ORT_EMP sy-vline 
WA_VVKKDRKO_STR-TITEL_ZUS sy-vline 
WA_VVKKDRKO_STR-T_ACA_ZUS sy-vline 
WA_VVKKDRKO_STR-NAME1_ZUS sy-vline 
WA_VVKKDRKO_STR-NAME2_ZUS sy-vline 
WA_VVKKDRKO_STR-NAMEL_ZUS sy-vline 
WA_VVKKDRKO_STR-STRAS_ZUS sy-vline 
WA_VVKKDRKO_STR-HNUM_ZUS sy-vline 
WA_VVKKDRKO_STR-LAND_ZUS sy-vline 
WA_VVKKDRKO_STR-PLZ_ZUS sy-vline 
WA_VVKKDRKO_STR-ORT_ZUS sy-vline 
WA_VVKKDRKO_STR-NAME1_ABS sy-vline 
WA_VVKKDRKO_STR-NAME2_ABS sy-vline 
WA_VVKKDRKO_STR-STRAS_ABS sy-vline 
WA_VVKKDRKO_STR-LAND_ABS sy-vline 
WA_VVKKDRKO_STR-PLZ_ABS sy-vline 
WA_VVKKDRKO_STR-ORT_ABS sy-vline 
WA_VVKKDRKO_STR-BNKLZ_ABS sy-vline 
WA_VVKKDRKO_STR-BNKKN_ABS sy-vline 
WA_VVKKDRKO_STR-BNKNA_ABS sy-vline 
WA_VVKKDRKO_STR-KDFEL sy-vline 
WA_VVKKDRKO_STR-NAME1_LD sy-vline 
WA_VVKKDRKO_STR-NAME2_LD sy-vline 
WA_VVKKDRKO_STR-STRAS_LD sy-vline 
WA_VVKKDRKO_STR-LAND_LD sy-vline 
WA_VVKKDRKO_STR-PLZ_LD sy-vline 
WA_VVKKDRKO_STR-ORT_LD sy-vline 
WA_VVKKDRKO_STR-TELNR_LD sy-vline 
WA_VVKKDRKO_STR-ERLDT sy-vline      INTO ld_text SEPARATED BY SPACE.

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