ABAP Select data from SAP table VBKOFKA 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 VBKOFKA 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 VBKOFKA. 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 VBKOFKA 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_VBKOFKA TYPE STANDARD TABLE OF VBKOFKA,
      WA_VBKOFKA TYPE VBKOFKA,
      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: <VBKOFKA> TYPE VBKOFKA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VBKOFKA
*  INTO TABLE @DATA(IT_VBKOFKA2).
*--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_VBKOFKA INDEX 1 INTO DATA(WA_VBKOFKA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VBKOFKA>-MANDT = 1.
<VBKOFKA>-KUNDE = 1.
<VBKOFKA>-PARVW = 1.
<VBKOFKA>-TRVOG = 1.
<VBKOFKA>-VKORG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VBKOFKA-KTABG, sy-vline,
  WA_VBKOFKA-KTAAR, sy-vline,
  WA_VBKOFKA-VBELN, sy-vline,
  WA_VBKOFKA-ERDAT, sy-vline,
  WA_VBKOFKA-ERZET, sy-vline,
  WA_VBKOFKA-ERNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VBKOFKA 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_VBKOFKA 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_VBKOFKA INTO WA_VBKOFKA.


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

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

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

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

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

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

*Conversion exit PARVW, internal->external for field PARVW_VBKA
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_VBKOFKA-PARVW_VBKA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBKOFKA-PARVW_VBKA.
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_VBKOFKA_STR, 
MANDT TYPE STRING,
KUNDE TYPE STRING,
PARVW TYPE STRING,
TRVOG TYPE STRING,
VKORG TYPE STRING,
KTABG TYPE STRING,
KTAAR TYPE STRING,
VBELN TYPE STRING,
ERDAT TYPE STRING,
ERZET TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AEZET TYPE STRING,
AENAM TYPE STRING,
VBTYP TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKBUR TYPE STRING,
VKGRP TYPE STRING,
KTAEN TYPE STRING,
KTABT TYPE STRING,
KTAET TYPE STRING,
KTAGR TYPE STRING,
KTAST TYPE STRING,
KTAER TYPE STRING,
KTAEB TYPE STRING,
KTARE TYPE STRING,
KTAVA TYPE STRING,
KTANR TYPE STRING,
KTAFK TYPE STRING,
KTADA TYPE STRING,
ADRNR TYPE STRING,
KTARA TYPE STRING,
VGBEL TYPE STRING,
KTEXT TYPE STRING,
SUBMI TYPE STRING,
VBKLA TYPE STRING,
VBKLT TYPE STRING,
KTA01 TYPE STRING,
KTA02 TYPE STRING,
KTA03 TYPE STRING,
KTA04 TYPE STRING,
KTA05 TYPE STRING,
KTA06 TYPE STRING,
KTA07 TYPE STRING,
KTA08 TYPE STRING,
KTA09 TYPE STRING,
KTA10 TYPE STRING,
KUNNR TYPE STRING,
GBSTK TYPE STRING,
JOBCOUNT TYPE STRING,
PARVW_VBKA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VBKOFKA_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_VBKOFKA_STR-MANDT sy-vline 
WA_VBKOFKA_STR-KUNDE sy-vline 
WA_VBKOFKA_STR-PARVW sy-vline 
WA_VBKOFKA_STR-TRVOG sy-vline 
WA_VBKOFKA_STR-VKORG sy-vline 
WA_VBKOFKA_STR-KTABG sy-vline 
WA_VBKOFKA_STR-KTAAR sy-vline 
WA_VBKOFKA_STR-VBELN sy-vline 
WA_VBKOFKA_STR-ERDAT sy-vline 
WA_VBKOFKA_STR-ERZET sy-vline 
WA_VBKOFKA_STR-ERNAM sy-vline 
WA_VBKOFKA_STR-AEDAT sy-vline 
WA_VBKOFKA_STR-AEZET sy-vline 
WA_VBKOFKA_STR-AENAM sy-vline 
WA_VBKOFKA_STR-VBTYP sy-vline 
WA_VBKOFKA_STR-VTWEG sy-vline 
WA_VBKOFKA_STR-SPART sy-vline 
WA_VBKOFKA_STR-VKBUR sy-vline 
WA_VBKOFKA_STR-VKGRP sy-vline 
WA_VBKOFKA_STR-KTAEN sy-vline 
WA_VBKOFKA_STR-KTABT sy-vline 
WA_VBKOFKA_STR-KTAET sy-vline 
WA_VBKOFKA_STR-KTAGR sy-vline 
WA_VBKOFKA_STR-KTAST sy-vline 
WA_VBKOFKA_STR-KTAER sy-vline 
WA_VBKOFKA_STR-KTAEB sy-vline 
WA_VBKOFKA_STR-KTARE sy-vline 
WA_VBKOFKA_STR-KTAVA sy-vline 
WA_VBKOFKA_STR-KTANR sy-vline 
WA_VBKOFKA_STR-KTAFK sy-vline 
WA_VBKOFKA_STR-KTADA sy-vline 
WA_VBKOFKA_STR-ADRNR sy-vline 
WA_VBKOFKA_STR-KTARA sy-vline 
WA_VBKOFKA_STR-VGBEL sy-vline 
WA_VBKOFKA_STR-KTEXT sy-vline 
WA_VBKOFKA_STR-SUBMI sy-vline 
WA_VBKOFKA_STR-VBKLA sy-vline 
WA_VBKOFKA_STR-VBKLT sy-vline 
WA_VBKOFKA_STR-KTA01 sy-vline 
WA_VBKOFKA_STR-KTA02 sy-vline 
WA_VBKOFKA_STR-KTA03 sy-vline 
WA_VBKOFKA_STR-KTA04 sy-vline 
WA_VBKOFKA_STR-KTA05 sy-vline 
WA_VBKOFKA_STR-KTA06 sy-vline 
WA_VBKOFKA_STR-KTA07 sy-vline 
WA_VBKOFKA_STR-KTA08 sy-vline 
WA_VBKOFKA_STR-KTA09 sy-vline 
WA_VBKOFKA_STR-KTA10 sy-vline 
WA_VBKOFKA_STR-KUNNR sy-vline 
WA_VBKOFKA_STR-GBSTK sy-vline 
WA_VBKOFKA_STR-JOBCOUNT sy-vline 
WA_VBKOFKA_STR-PARVW_VBKA sy-vline      INTO ld_text SEPARATED BY SPACE.

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