ABAP Select data from SAP table V_BFOD_KNA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_BFOD_KNA 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_BFOD_KNA. 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_BFOD_KNA 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_BFOD_KNA TYPE STANDARD TABLE OF V_BFOD_KNA,
      WA_V_BFOD_KNA TYPE V_BFOD_KNA,
      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_BFOD_KNA> TYPE V_BFOD_KNA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_BFOD_KNA
*  INTO TABLE @DATA(IT_V_BFOD_KNA2).
*--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_BFOD_KNA INDEX 1 INTO DATA(WA_V_BFOD_KNA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_BFOD_KNA>-MANDT = 1.
<V_BFOD_KNA>-BUKRS = 1.
<V_BFOD_KNA>-BELNR = 1.
<V_BFOD_KNA>-GJAHR = 1.
<V_BFOD_KNA>-BUZEI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_BFOD_KNA-OPZEI, sy-vline,
  WA_V_BFOD_KNA-TLZEI, sy-vline,
  WA_V_BFOD_KNA-AUZEI, sy-vline,
  WA_V_BFOD_KNA-LAIDOP, sy-vline,
  WA_V_BFOD_KNA-LAIDAP, sy-vline,
  WA_V_BFOD_KNA-BUDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_BFOD_KNA 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_BFOD_KNA 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_BFOD_KNA INTO WA_V_BFOD_KNA.


*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_BFOD_KNA-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_BFOD_KNA-BELNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit AU132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_V_BFOD_KNA-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_BFOD_KNA-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBE2
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_V_BFOD_KNA-DMBE2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_BFOD_KNA-DMBE2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBE3
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_V_BFOD_KNA-DMBE3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_BFOD_KNA-DMBE3.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_BFOD_KNA-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_BFOD_KNA-LIFNR.
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_BFOD_KNA_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
OPZEI TYPE STRING,
TLZEI TYPE STRING,
AUZEI TYPE STRING,
LAIDOP TYPE STRING,
LAIDAP TYPE STRING,
BUDAT TYPE STRING,
AUGDT TYPE STRING,
VBUND TYPE STRING,
HKONT TYPE STRING,
KUNNR TYPE STRING,
KORRK TYPE STRING,
SHKZG TYPE STRING,
DMBTR TYPE STRING,
DMBE2 TYPE STRING,
DMBE3 TYPE STRING,
GSBER TYPE STRING,
PARGB TYPE STRING,
PRCTR TYPE STRING,
PPRCT TYPE STRING,
BRSCH TYPE STRING,
LAND1 TYPE STRING,
LIFNR TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
ORT01 TYPE STRING,
RPMKR TYPE STRING,
BRAN1 TYPE STRING,
BRAN2 TYPE STRING,
BRAN3 TYPE STRING,
BRAN4 TYPE STRING,
BRAN5 TYPE STRING,
UMSAT TYPE STRING,
UMJAH TYPE STRING,
UWAER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_BFOD_KNA_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_BFOD_KNA_STR-MANDT sy-vline 
WA_V_BFOD_KNA_STR-BUKRS sy-vline 
WA_V_BFOD_KNA_STR-BELNR sy-vline 
WA_V_BFOD_KNA_STR-GJAHR sy-vline 
WA_V_BFOD_KNA_STR-BUZEI sy-vline 
WA_V_BFOD_KNA_STR-OPZEI sy-vline 
WA_V_BFOD_KNA_STR-TLZEI sy-vline 
WA_V_BFOD_KNA_STR-AUZEI sy-vline 
WA_V_BFOD_KNA_STR-LAIDOP sy-vline 
WA_V_BFOD_KNA_STR-LAIDAP sy-vline 
WA_V_BFOD_KNA_STR-BUDAT sy-vline 
WA_V_BFOD_KNA_STR-AUGDT sy-vline 
WA_V_BFOD_KNA_STR-VBUND sy-vline 
WA_V_BFOD_KNA_STR-HKONT sy-vline 
WA_V_BFOD_KNA_STR-KUNNR sy-vline 
WA_V_BFOD_KNA_STR-KORRK sy-vline 
WA_V_BFOD_KNA_STR-SHKZG sy-vline 
WA_V_BFOD_KNA_STR-DMBTR sy-vline 
WA_V_BFOD_KNA_STR-DMBE2 sy-vline 
WA_V_BFOD_KNA_STR-DMBE3 sy-vline 
WA_V_BFOD_KNA_STR-GSBER sy-vline 
WA_V_BFOD_KNA_STR-PARGB sy-vline 
WA_V_BFOD_KNA_STR-PRCTR sy-vline 
WA_V_BFOD_KNA_STR-PPRCT sy-vline 
WA_V_BFOD_KNA_STR-BRSCH sy-vline 
WA_V_BFOD_KNA_STR-LAND1 sy-vline 
WA_V_BFOD_KNA_STR-LIFNR sy-vline 
WA_V_BFOD_KNA_STR-NAME1 sy-vline 
WA_V_BFOD_KNA_STR-NAME2 sy-vline 
WA_V_BFOD_KNA_STR-NAME3 sy-vline 
WA_V_BFOD_KNA_STR-NAME4 sy-vline 
WA_V_BFOD_KNA_STR-ORT01 sy-vline 
WA_V_BFOD_KNA_STR-RPMKR sy-vline 
WA_V_BFOD_KNA_STR-BRAN1 sy-vline 
WA_V_BFOD_KNA_STR-BRAN2 sy-vline 
WA_V_BFOD_KNA_STR-BRAN3 sy-vline 
WA_V_BFOD_KNA_STR-BRAN4 sy-vline 
WA_V_BFOD_KNA_STR-BRAN5 sy-vline 
WA_V_BFOD_KNA_STR-UMSAT sy-vline 
WA_V_BFOD_KNA_STR-UMJAH sy-vline 
WA_V_BFOD_KNA_STR-UWAER sy-vline      INTO ld_text SEPARATED BY SPACE.

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