ABAP Select data from SAP table VBPA3KOM 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 VBPA3KOM 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 VBPA3KOM. 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 VBPA3KOM 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_VBPA3KOM TYPE STANDARD TABLE OF VBPA3KOM,
      WA_VBPA3KOM TYPE VBPA3KOM,
      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: <VBPA3KOM> TYPE VBPA3KOM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VBPA3KOM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VBPA3KOM
  INTO TABLE IT_VBPA3KOM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VBPA3KOM
*  INTO TABLE @DATA(IT_VBPA3KOM2).
*--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_VBPA3KOM INDEX 1 INTO DATA(WA_VBPA3KOM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VBPA3KOM ASSIGNING <VBPA3KOM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VBPA3KOM>-VBELN = 1.
<VBPA3KOM>-POSNR = 1.
<VBPA3KOM>-PARVW = 1.
<VBPA3KOM>-STCD1 = 1.
<VBPA3KOM>-STCD2 = 1.

ENDLOOP.

LOOP AT IT_VBPA3KOM INTO WA_VBPA3KOM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VBPA3KOM-STCD3, sy-vline,
  WA_VBPA3KOM-STCD4, sy-vline,
  WA_VBPA3KOM-STKZN, sy-vline,
  WA_VBPA3KOM-STCDT, sy-vline,
  WA_VBPA3KOM-J_1KFREPRE, sy-vline,
  WA_VBPA3KOM-J_1KFTBUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VBPA3KOM 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_VBPA3KOM 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_VBPA3KOM INTO WA_VBPA3KOM.


*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_VBPA3KOM-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBPA3KOM-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field PARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_VBPA3KOM-PARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBPA3KOM-PARVW.
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_VBPA3KOM_STR, 
VBELN TYPE STRING,
POSNR TYPE STRING,
PARVW TYPE STRING,
STCD1 TYPE STRING,
STCD2 TYPE STRING,
STCD3 TYPE STRING,
STCD4 TYPE STRING,
STKZN TYPE STRING,
STCDT TYPE STRING,
J_1KFREPRE TYPE STRING,
J_1KFTBUS TYPE STRING,
J_1KFTIND TYPE STRING,
STCD5 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VBPA3KOM_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_VBPA3KOM_STR-VBELN sy-vline 
WA_VBPA3KOM_STR-POSNR sy-vline 
WA_VBPA3KOM_STR-PARVW sy-vline 
WA_VBPA3KOM_STR-STCD1 sy-vline 
WA_VBPA3KOM_STR-STCD2 sy-vline 
WA_VBPA3KOM_STR-STCD3 sy-vline 
WA_VBPA3KOM_STR-STCD4 sy-vline 
WA_VBPA3KOM_STR-STKZN sy-vline 
WA_VBPA3KOM_STR-STCDT sy-vline 
WA_VBPA3KOM_STR-J_1KFREPRE sy-vline 
WA_VBPA3KOM_STR-J_1KFTBUS sy-vline 
WA_VBPA3KOM_STR-J_1KFTIND sy-vline 
WA_VBPA3KOM_STR-STCD5 sy-vline      INTO ld_text SEPARATED BY SPACE.

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