ABAP Select data from SAP table VKKKFOPDAT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VKKKFOPDAT
*  INTO TABLE @DATA(IT_VKKKFOPDAT2).
*--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_VKKKFOPDAT INDEX 1 INTO DATA(WA_VKKKFOPDAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VKKKFOPDAT>-BETRW = 1.
<VKKKFOPDAT>-BUGRD = 1.
<VKKKFOPDAT>-HVORG = 1.
<VKKKFOPDAT>-TVORG = 1.
<VKKKFOPDAT>-OPHVORG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VKKKFOPDAT-OPTVORG, sy-vline,
  WA_VKKKFOPDAT-FAEDN, sy-vline,
  WA_VKKKFOPDAT-FAEDS, sy-vline,
  WA_VKKKFOPDAT-FOKNZ, sy-vline,
  WA_VKKKFOPDAT-BUKRS, sy-vline,
  WA_VKKKFOPDAT-GSBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VKKKFOPDAT 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_VKKKFOPDAT 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_VKKKFOPDAT INTO WA_VKKKFOPDAT.


*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 VKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VKKKFOPDAT-VKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VKKKFOPDAT-VKONT.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field VTRE2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VKKKFOPDAT-VTRE2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VKKKFOPDAT-VTRE2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VTRE3
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VKKKFOPDAT-VTRE3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VKKKFOPDAT-VTRE3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VGPART2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VKKKFOPDAT-VGPART2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VKKKFOPDAT-VGPART2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VGPART3
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VKKKFOPDAT-VGPART3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VKKKFOPDAT-VGPART3.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field FDGRP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VKKKFOPDAT-FDGRP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VKKKFOPDAT-FDGRP.
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_VKKKFOPDAT_STR, 
BETRW TYPE STRING,
BUGRD TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
OPHVORG TYPE STRING,
OPTVORG TYPE STRING,
FAEDN TYPE STRING,
FAEDS TYPE STRING,
FOKNZ TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
LNDSL TYPE STRING,
PRGRP TYPE STRING,
VKONT TYPE STRING,
GPART TYPE STRING,
EMGPA TYPE STRING,
EMADE TYPE STRING,
EMBVT TYPE STRING,
SPZAH TYPE STRING,
SPZFD TYPE STRING,
SPZTD TYPE STRING,
PYMET TYPE STRING,
PYGRP TYPE STRING,
INDYN TYPE STRING,
INFAK TYPE STRING,
RBART TYPE STRING,
VTREF TYPE STRING,
VTRE2 TYPE STRING,
VTRE3 TYPE STRING,
VGPART2 TYPE STRING,
VGPART3 TYPE STRING,
STAKZ TYPE STRING,
SKTPZ TYPE STRING,
STPRZ TYPE STRING,
GRKEY TYPE STRING,
VERKZ TYPE STRING,
BEWAR TYPE STRING,
VSARL_VX TYPE STRING,
KOSTL TYPE STRING,
PRCTR TYPE STRING,
ADKNZ TYPE STRING,
OPTXT TYPE STRING,
FDGRP TYPE STRING,
FDZTG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VKKKFOPDAT_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_VKKKFOPDAT_STR-BETRW sy-vline 
WA_VKKKFOPDAT_STR-BUGRD sy-vline 
WA_VKKKFOPDAT_STR-HVORG sy-vline 
WA_VKKKFOPDAT_STR-TVORG sy-vline 
WA_VKKKFOPDAT_STR-OPHVORG sy-vline 
WA_VKKKFOPDAT_STR-OPTVORG sy-vline 
WA_VKKKFOPDAT_STR-FAEDN sy-vline 
WA_VKKKFOPDAT_STR-FAEDS sy-vline 
WA_VKKKFOPDAT_STR-FOKNZ sy-vline 
WA_VKKKFOPDAT_STR-BUKRS sy-vline 
WA_VKKKFOPDAT_STR-GSBER sy-vline 
WA_VKKKFOPDAT_STR-LNDSL sy-vline 
WA_VKKKFOPDAT_STR-PRGRP sy-vline 
WA_VKKKFOPDAT_STR-VKONT sy-vline 
WA_VKKKFOPDAT_STR-GPART sy-vline 
WA_VKKKFOPDAT_STR-EMGPA sy-vline 
WA_VKKKFOPDAT_STR-EMADE sy-vline 
WA_VKKKFOPDAT_STR-EMBVT sy-vline 
WA_VKKKFOPDAT_STR-SPZAH sy-vline 
WA_VKKKFOPDAT_STR-SPZFD sy-vline 
WA_VKKKFOPDAT_STR-SPZTD sy-vline 
WA_VKKKFOPDAT_STR-PYMET sy-vline 
WA_VKKKFOPDAT_STR-PYGRP sy-vline 
WA_VKKKFOPDAT_STR-INDYN sy-vline 
WA_VKKKFOPDAT_STR-INFAK sy-vline 
WA_VKKKFOPDAT_STR-RBART sy-vline 
WA_VKKKFOPDAT_STR-VTREF sy-vline 
WA_VKKKFOPDAT_STR-VTRE2 sy-vline 
WA_VKKKFOPDAT_STR-VTRE3 sy-vline 
WA_VKKKFOPDAT_STR-VGPART2 sy-vline 
WA_VKKKFOPDAT_STR-VGPART3 sy-vline 
WA_VKKKFOPDAT_STR-STAKZ sy-vline 
WA_VKKKFOPDAT_STR-SKTPZ sy-vline 
WA_VKKKFOPDAT_STR-STPRZ sy-vline 
WA_VKKKFOPDAT_STR-GRKEY sy-vline 
WA_VKKKFOPDAT_STR-VERKZ sy-vline 
WA_VKKKFOPDAT_STR-BEWAR sy-vline 
WA_VKKKFOPDAT_STR-VSARL_VX sy-vline 
WA_VKKKFOPDAT_STR-KOSTL sy-vline 
WA_VKKKFOPDAT_STR-PRCTR sy-vline 
WA_VKKKFOPDAT_STR-ADKNZ sy-vline 
WA_VKKKFOPDAT_STR-OPTXT sy-vline 
WA_VKKKFOPDAT_STR-FDGRP sy-vline 
WA_VKKKFOPDAT_STR-FDZTG sy-vline      INTO ld_text SEPARATED BY SPACE.

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