ABAP Select data from SAP table VBPA2KOM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VBPA2KOM 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 VBPA2KOM. 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 VBPA2KOM 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_VBPA2KOM TYPE STANDARD TABLE OF VBPA2KOM,
      WA_VBPA2KOM TYPE VBPA2KOM,
      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: <VBPA2KOM> TYPE VBPA2KOM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VBPA2KOM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VBPA2KOM
  INTO TABLE IT_VBPA2KOM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VBPA2KOM
*  INTO TABLE @DATA(IT_VBPA2KOM2).
*--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_VBPA2KOM INDEX 1 INTO DATA(WA_VBPA2KOM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VBPA2KOM ASSIGNING <VBPA2KOM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VBPA2KOM>-VBELN = 1.
<VBPA2KOM>-POSNR = 1.
<VBPA2KOM>-BPARVW_OLD = 1.
<VBPA2KOM>-BPARNR_OLD = 1.
<VBPA2KOM>-BPARVW = 1.

ENDLOOP.

LOOP AT IT_VBPA2KOM INTO WA_VBPA2KOM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VBPA2KOM-BPARNR, sy-vline,
  WA_VBPA2KOM-ADRNR, sy-vline,
  WA_VBPA2KOM-ADRNP, sy-vline,
  WA_VBPA2KOM-ADDRESS_TYPE, sy-vline,
  WA_VBPA2KOM-ADDRESS_ORIGIN, sy-vline,
  WA_VBPA2KOM-ADDR_LINK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VBPA2KOM 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_VBPA2KOM 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_VBPA2KOM INTO WA_VBPA2KOM.


*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_VBPA2KOM-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBPA2KOM-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field BPARVW_OLD
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_VBPA2KOM-BPARVW_OLD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBPA2KOM-BPARVW_OLD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field BPARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_VBPA2KOM-BPARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBPA2KOM-BPARVW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VBPA2KOM-ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBPA2KOM-ADRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADRNP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VBPA2KOM-ADRNP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBPA2KOM-ADRNP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADDR_LINK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VBPA2KOM-ADDR_LINK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBPA2KOM-ADDR_LINK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFLOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VBPA2KOM-REFLOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBPA2KOM-REFLOGSYS.
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_VBPA2KOM_STR, 
VBELN TYPE STRING,
POSNR TYPE STRING,
BPARVW_OLD TYPE STRING,
BPARNR_OLD TYPE STRING,
BPARVW TYPE STRING,
BPARNR TYPE STRING,
ADRNR TYPE STRING,
ADRNP TYPE STRING,
ADDRESS_TYPE TYPE STRING,
ADDRESS_ORIGIN TYPE STRING,
ADDR_LINK TYPE STRING,
ABLAD TYPE STRING,
KALE TYPE STRING,
REFOBJTYPE TYPE STRING,
REFOBJKEY TYPE STRING,
REFLOGSYS TYPE STRING,
STCEG TYPE STRING,
ADDRESS_GUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VBPA2KOM_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_VBPA2KOM_STR-VBELN sy-vline 
WA_VBPA2KOM_STR-POSNR sy-vline 
WA_VBPA2KOM_STR-BPARVW_OLD sy-vline 
WA_VBPA2KOM_STR-BPARNR_OLD sy-vline 
WA_VBPA2KOM_STR-BPARVW sy-vline 
WA_VBPA2KOM_STR-BPARNR sy-vline 
WA_VBPA2KOM_STR-ADRNR sy-vline 
WA_VBPA2KOM_STR-ADRNP sy-vline 
WA_VBPA2KOM_STR-ADDRESS_TYPE sy-vline 
WA_VBPA2KOM_STR-ADDRESS_ORIGIN sy-vline 
WA_VBPA2KOM_STR-ADDR_LINK sy-vline 
WA_VBPA2KOM_STR-ABLAD sy-vline 
WA_VBPA2KOM_STR-KALE sy-vline 
WA_VBPA2KOM_STR-REFOBJTYPE sy-vline 
WA_VBPA2KOM_STR-REFOBJKEY sy-vline 
WA_VBPA2KOM_STR-REFLOGSYS sy-vline 
WA_VBPA2KOM_STR-STCEG sy-vline 
WA_VBPA2KOM_STR-ADDRESS_GUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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