ABAP Select data from SAP table V_KFPK_VB_R into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_KFPK_VB_R
*  INTO TABLE @DATA(IT_V_KFPK_VB_R2).
*--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_V_KFPK_VB_R INDEX 1 INTO DATA(WA_V_KFPK_VB_R2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_KFPK_VB_R>-MANDT = 1.
<V_KFPK_VB_R>-KOKRS = 1.
<V_KFPK_VB_R>-BELNR = 1.
<V_KFPK_VB_R>-BLTYP = 1.
<V_KFPK_VB_R>-BLART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_KFPK_VB_R-KERFAS, sy-vline,
  WA_V_KFPK_VB_R-KTEXT, sy-vline,
  WA_V_KFPK_VB_R-KLOEKZ, sy-vline,
  WA_V_KFPK_VB_R-RPSPNR, sy-vline,
  WA_V_KFPK_VB_R-SAUFNR, sy-vline,
  WA_V_KFPK_VB_R-SPSPNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_KFPK_VB_R 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_V_KFPK_VB_R 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_V_KFPK_VB_R INTO WA_V_KFPK_VB_R.


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

*Conversion exit ABPSP, internal->external for field RPSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_V_KFPK_VB_R-RPSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_KFPK_VB_R-RPSPNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ABPSP, internal->external for field SPSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_V_KFPK_VB_R-SPSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_KFPK_VB_R-SPSPNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ABPSN, internal->external for field RPOSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_V_KFPK_VB_R-RPOSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_KFPK_VB_R-RPOSID.
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_V_KFPK_VB_R_STR, 
MANDT TYPE STRING,
KOKRS TYPE STRING,
BELNR TYPE STRING,
BLTYP TYPE STRING,
BLART TYPE STRING,
KERFAS TYPE STRING,
KTEXT TYPE STRING,
KLOEKZ TYPE STRING,
RPSPNR TYPE STRING,
SAUFNR TYPE STRING,
SPSPNR TYPE STRING,
SNPLNR TYPE STRING,
SAUFPL TYPE STRING,
SAPLZL TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
XBLNR TYPE STRING,
RPOSID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_KFPK_VB_R_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_V_KFPK_VB_R_STR-MANDT sy-vline 
WA_V_KFPK_VB_R_STR-KOKRS sy-vline 
WA_V_KFPK_VB_R_STR-BELNR sy-vline 
WA_V_KFPK_VB_R_STR-BLTYP sy-vline 
WA_V_KFPK_VB_R_STR-BLART sy-vline 
WA_V_KFPK_VB_R_STR-KERFAS sy-vline 
WA_V_KFPK_VB_R_STR-KTEXT sy-vline 
WA_V_KFPK_VB_R_STR-KLOEKZ sy-vline 
WA_V_KFPK_VB_R_STR-RPSPNR sy-vline 
WA_V_KFPK_VB_R_STR-SAUFNR sy-vline 
WA_V_KFPK_VB_R_STR-SPSPNR sy-vline 
WA_V_KFPK_VB_R_STR-SNPLNR sy-vline 
WA_V_KFPK_VB_R_STR-SAUFPL sy-vline 
WA_V_KFPK_VB_R_STR-SAPLZL sy-vline 
WA_V_KFPK_VB_R_STR-BLDAT sy-vline 
WA_V_KFPK_VB_R_STR-BUDAT sy-vline 
WA_V_KFPK_VB_R_STR-XBLNR sy-vline 
WA_V_KFPK_VB_R_STR-RPOSID sy-vline      INTO ld_text SEPARATED BY SPACE.

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