ABAP Select data from SAP table VBXK 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 VBXK 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 VBXK. 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 VBXK 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_VBXK TYPE STANDARD TABLE OF VBXK,
      WA_VBXK TYPE VBXK,
      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: <VBXK> TYPE VBXK.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VBXK
*  INTO TABLE @DATA(IT_VBXK2).
*--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_VBXK INDEX 1 INTO DATA(WA_VBXK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VBXK>-MANDT = 1.
<VBXK>-VBELN = 1.
<VBXK>-GRGEP = 1.
<VBXK>-VSTEL = 1.
<VBXK>-EXPKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VBXK-EXPVZ, sy-vline,
  WA_VBXK-ZOLLS, sy-vline,
  WA_VBXK-KZABE, sy-vline,
  WA_VBXK-STABE, sy-vline,
  WA_VBXK-SPDLD, sy-vline,
  WA_VBXK-KZGBE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VBXK 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_VBXK 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_VBXK INTO WA_VBXK.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VBXK-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBXK-VBELN.
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_VBXK_STR, 
MANDT TYPE STRING,
VBELN TYPE STRING,
GRGEP TYPE STRING,
VSTEL TYPE STRING,
EXPKZ TYPE STRING,
EXPVZ TYPE STRING,
ZOLLS TYPE STRING,
KZABE TYPE STRING,
STABE TYPE STRING,
SPDLD TYPE STRING,
KZGBE TYPE STRING,
BSZ01 TYPE STRING,
GUZOL TYPE STRING,
ELAND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VBXK_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_VBXK_STR-MANDT sy-vline 
WA_VBXK_STR-VBELN sy-vline 
WA_VBXK_STR-GRGEP sy-vline 
WA_VBXK_STR-VSTEL sy-vline 
WA_VBXK_STR-EXPKZ sy-vline 
WA_VBXK_STR-EXPVZ sy-vline 
WA_VBXK_STR-ZOLLS sy-vline 
WA_VBXK_STR-KZABE sy-vline 
WA_VBXK_STR-STABE sy-vline 
WA_VBXK_STR-SPDLD sy-vline 
WA_VBXK_STR-KZGBE sy-vline 
WA_VBXK_STR-BSZ01 sy-vline 
WA_VBXK_STR-GUZOL sy-vline 
WA_VBXK_STR-ELAND sy-vline      INTO ld_text SEPARATED BY SPACE.

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