ABAP Select data from SAP table VKUMB into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VKUMB
*  INTO TABLE @DATA(IT_VKUMB2).
*--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_VKUMB INDEX 1 INTO DATA(WA_VKUMB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VKUMB>-MANDT = 1.
<VKUMB>-WERKS = 1.
<VKUMB>-MATNR = 1.
<VKUMB>-VKUDT = 1.
<VKUMB>-BWKEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VKUMB-BWTAR, sy-vline,
  WA_VKUMB-LGORT, sy-vline,
  WA_VKUMB-ERFMG, sy-vline,
  WA_VKUMB-VPALT, sy-vline,
  WA_VKUMB-VPNEU, sy-vline,
  WA_VKUMB-ENDPN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VKUMB 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_VKUMB 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_VKUMB INTO WA_VKUMB.


*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_VKUMB-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VKUMB-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field PROF_COST_VAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VKUMB-PROF_COST_VAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VKUMB-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_VKUMB_STR, 
MANDT TYPE STRING,
WERKS TYPE STRING,
MATNR TYPE STRING,
VKUDT TYPE STRING,
BWKEY TYPE STRING,
BWTAR TYPE STRING,
LGORT TYPE STRING,
ERFMG TYPE STRING,
VPALT TYPE STRING,
VPNEU TYPE STRING,
ENDPN TYPE STRING,
VWAER TYPE STRING,
HWAER TYPE STRING,
VRKPE TYPE STRING,
VRKME TYPE STRING,
UWERT TYPE STRING,
GUMBE TYPE STRING,
VKSALN TYPE STRING,
VKSALNN TYPE STRING,
USALDO TYPE STRING,
USALDN TYPE STRING,
SELKZ_SOLL TYPE STRING,
SELKZ_HABE TYPE STRING,
PV_GRUND TYPE STRING,
SPANN TYPE STRING,
SUBRC TYPE STRING,
USNAM TYPE STRING,
XBKNG TYPE STRING,
XLONG TYPE STRING,
XMCNG TYPE STRING,
XZERO_COUNT 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,
UAKT TYPE STRING,
SALES_VAL_SIGN TYPE STRING,
AFFECT_COST_VAL TYPE STRING,
VORGA_CREATE TYPE STRING,
MOD_CREATE TYPE STRING,
TIME_CREATE TYPE STRING,
VORGA_CHANGE TYPE STRING,
MOD_CHANGE TYPE STRING,
TIME_CHANGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VKUMB_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_VKUMB_STR-MANDT sy-vline 
WA_VKUMB_STR-WERKS sy-vline 
WA_VKUMB_STR-MATNR sy-vline 
WA_VKUMB_STR-VKUDT sy-vline 
WA_VKUMB_STR-BWKEY sy-vline 
WA_VKUMB_STR-BWTAR sy-vline 
WA_VKUMB_STR-LGORT sy-vline 
WA_VKUMB_STR-ERFMG sy-vline 
WA_VKUMB_STR-VPALT sy-vline 
WA_VKUMB_STR-VPNEU sy-vline 
WA_VKUMB_STR-ENDPN sy-vline 
WA_VKUMB_STR-VWAER sy-vline 
WA_VKUMB_STR-HWAER sy-vline 
WA_VKUMB_STR-VRKPE sy-vline 
WA_VKUMB_STR-VRKME sy-vline 
WA_VKUMB_STR-UWERT sy-vline 
WA_VKUMB_STR-GUMBE sy-vline 
WA_VKUMB_STR-VKSALN sy-vline 
WA_VKUMB_STR-VKSALNN sy-vline 
WA_VKUMB_STR-USALDO sy-vline 
WA_VKUMB_STR-USALDN sy-vline 
WA_VKUMB_STR-SELKZ_SOLL sy-vline 
WA_VKUMB_STR-SELKZ_HABE sy-vline 
WA_VKUMB_STR-PV_GRUND sy-vline 
WA_VKUMB_STR-SPANN sy-vline 
WA_VKUMB_STR-SUBRC sy-vline 
WA_VKUMB_STR-USNAM sy-vline 
WA_VKUMB_STR-XBKNG sy-vline 
WA_VKUMB_STR-XLONG sy-vline 
WA_VKUMB_STR-XMCNG sy-vline 
WA_VKUMB_STR-XZERO_COUNT sy-vline 
WA_VKUMB_STR-PROF_COST_VAL sy-vline 
WA_VKUMB_STR-PR_ORIG_VPNEU sy-vline 
WA_VKUMB_STR-PR_ORIG_VPALT sy-vline 
WA_VKUMB_STR-PR_ORIG_DET_NEW sy-vline 
WA_VKUMB_STR-PR_ORIG_DET_OLD sy-vline 
WA_VKUMB_STR-UAKT sy-vline 
WA_VKUMB_STR-SALES_VAL_SIGN sy-vline 
WA_VKUMB_STR-AFFECT_COST_VAL sy-vline 
WA_VKUMB_STR-VORGA_CREATE sy-vline 
WA_VKUMB_STR-MOD_CREATE sy-vline 
WA_VKUMB_STR-TIME_CREATE sy-vline 
WA_VKUMB_STR-VORGA_CHANGE sy-vline 
WA_VKUMB_STR-MOD_CHANGE sy-vline 
WA_VKUMB_STR-TIME_CHANGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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