ABAP Select data from SAP table VKUMR into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VKUMR 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 VKUMR. 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 VKUMR 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_VKUMR TYPE STANDARD TABLE OF VKUMR,
      WA_VKUMR TYPE VKUMR,
      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: <VKUMR> TYPE VKUMR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VKUMR
*  INTO TABLE @DATA(IT_VKUMR2).
*--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_VKUMR INDEX 1 INTO DATA(WA_VKUMR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VKUMR>-MANDT = 1.
<VKUMR>-WERKS = 1.
<VKUMR>-VKORG = 1.
<VKUMR>-VTWEG = 1.
<VKUMR>-VKUDT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VKUMR-MATKL, sy-vline,
  WA_VKUMR-MATNR, sy-vline,
  WA_VKUMR-MATBF, sy-vline,
  WA_VKUMR-PMATA, sy-vline,
  WA_VKUMR-ATTYP, sy-vline,
  WA_VKUMR-WEBEF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VKUMR 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_VKUMR 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_VKUMR INTO WA_VKUMR.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_VKUMR-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VKUMR-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATBF
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_VKUMR-MATBF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VKUMR-MATBF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field PMATA
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_VKUMR-PMATA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VKUMR-PMATA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EAN11, internal->external for field EAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_VKUMR-EAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VKUMR-EAN11.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VKUMR-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VKUMR-VRKME.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VKUMR-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VKUMR-MEINS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field UBJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_VKUMR-UBJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VKUMR-UBJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROF_COST_VAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VKUMR-PROF_COST_VAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VKUMR-PROF_COST_VAL.
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_VKUMR_STR, 
MANDT TYPE STRING,
WERKS TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
VKUDT TYPE STRING,
MATKL TYPE STRING,
MATNR TYPE STRING,
MATBF TYPE STRING,
PMATA TYPE STRING,
ATTYP TYPE STRING,
WEBEF TYPE STRING,
BWTAR TYPE STRING,
STOCKC TYPE STRING,
SPANN TYPE STRING,
LISTE TYPE STRING,
UMBEW TYPE STRING,
AU_CHECK TYPE STRING,
WNAME TYPE STRING,
EAN11 TYPE STRING,
MAKTX TYPE STRING,
WGBEZ TYPE STRING,
VKOBZ TYPE STRING,
VTWBZ TYPE STRING,
VPALT TYPE STRING,
VPNEU TYPE STRING,
VWAER TYPE STRING,
VRKPE TYPE STRING,
VRKME TYPE STRING,
PV_GRUND TYPE STRING,
BWKEY TYPE STRING,
BEGAK TYPE STRING,
ENDAK TYPE STRING,
LBKUM TYPE STRING,
MEINS TYPE STRING,
UBLNR TYPE STRING,
UBJAHR TYPE STRING,
UPSTA TYPE STRING,
VLFKZ TYPE STRING,
COLOUR_ALV TYPE STRING,
XCOUNT TYPE STRING,
XDIFF TYPE STRING,
VKKAB TYPE STRING,
VKKBI TYPE STRING,
PROF_COST_VAL TYPE STRING,
PR_ORIG_VPNEU TYPE STRING,
PR_ORIG_VPALT TYPE STRING,
PR_ORIG_DET_NEW TYPE STRING,
PR_ORIG_DET_OLD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VKUMR_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_VKUMR_STR-MANDT sy-vline 
WA_VKUMR_STR-WERKS sy-vline 
WA_VKUMR_STR-VKORG sy-vline 
WA_VKUMR_STR-VTWEG sy-vline 
WA_VKUMR_STR-VKUDT sy-vline 
WA_VKUMR_STR-MATKL sy-vline 
WA_VKUMR_STR-MATNR sy-vline 
WA_VKUMR_STR-MATBF sy-vline 
WA_VKUMR_STR-PMATA sy-vline 
WA_VKUMR_STR-ATTYP sy-vline 
WA_VKUMR_STR-WEBEF sy-vline 
WA_VKUMR_STR-BWTAR sy-vline 
WA_VKUMR_STR-STOCKC sy-vline 
WA_VKUMR_STR-SPANN sy-vline 
WA_VKUMR_STR-LISTE sy-vline 
WA_VKUMR_STR-UMBEW sy-vline 
WA_VKUMR_STR-AU_CHECK sy-vline 
WA_VKUMR_STR-WNAME sy-vline 
WA_VKUMR_STR-EAN11 sy-vline 
WA_VKUMR_STR-MAKTX sy-vline 
WA_VKUMR_STR-WGBEZ sy-vline 
WA_VKUMR_STR-VKOBZ sy-vline 
WA_VKUMR_STR-VTWBZ sy-vline 
WA_VKUMR_STR-VPALT sy-vline 
WA_VKUMR_STR-VPNEU sy-vline 
WA_VKUMR_STR-VWAER sy-vline 
WA_VKUMR_STR-VRKPE sy-vline 
WA_VKUMR_STR-VRKME sy-vline 
WA_VKUMR_STR-PV_GRUND sy-vline 
WA_VKUMR_STR-BWKEY sy-vline 
WA_VKUMR_STR-BEGAK sy-vline 
WA_VKUMR_STR-ENDAK sy-vline 
WA_VKUMR_STR-LBKUM sy-vline 
WA_VKUMR_STR-MEINS sy-vline 
WA_VKUMR_STR-UBLNR sy-vline 
WA_VKUMR_STR-UBJAHR sy-vline 
WA_VKUMR_STR-UPSTA sy-vline 
WA_VKUMR_STR-VLFKZ sy-vline 
WA_VKUMR_STR-COLOUR_ALV sy-vline 
WA_VKUMR_STR-XCOUNT sy-vline 
WA_VKUMR_STR-XDIFF sy-vline 
WA_VKUMR_STR-VKKAB sy-vline 
WA_VKUMR_STR-VKKBI sy-vline 
WA_VKUMR_STR-PROF_COST_VAL sy-vline 
WA_VKUMR_STR-PR_ORIG_VPNEU sy-vline 
WA_VKUMR_STR-PR_ORIG_VPALT sy-vline 
WA_VKUMR_STR-PR_ORIG_DET_NEW sy-vline 
WA_VKUMR_STR-PR_ORIG_DET_OLD sy-vline      INTO ld_text SEPARATED BY SPACE.

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