ABAP Select data from SAP table KOMK3_FI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KOMK3_FI 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 KOMK3_FI. 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 KOMK3_FI 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_KOMK3_FI TYPE STANDARD TABLE OF KOMK3_FI,
      WA_KOMK3_FI TYPE KOMK3_FI,
      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: <KOMK3_FI> TYPE KOMK3_FI.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KOMK3_FI.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KOMK3_FI
  INTO TABLE IT_KOMK3_FI.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KOMK3_FI
*  INTO TABLE @DATA(IT_KOMK3_FI2).
*--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_KOMK3_FI INDEX 1 INTO DATA(WA_KOMK3_FI2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KOMK3_FI ASSIGNING <KOMK3_FI>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KOMK3_FI>-BUKRS = 1.
<KOMK3_FI>-BELNR = 1.
<KOMK3_FI>-BSCHL = 1.
<KOMK3_FI>-HKONT = 1.
<KOMK3_FI>-DMBTR = 1.

ENDLOOP.

LOOP AT IT_KOMK3_FI INTO WA_KOMK3_FI.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KOMK3_FI-WRBTR, sy-vline,
  WA_KOMK3_FI-DMBE_1, sy-vline,
  WA_KOMK3_FI-DMBE_2, sy-vline,
  WA_KOMK3_FI-DMBE_3, sy-vline,
  WA_KOMK3_FI-MWSKZ, sy-vline,
  WA_KOMK3_FI-XSKRL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KOMK3_FI 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_KOMK3_FI 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_KOMK3_FI INTO WA_KOMK3_FI.


*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_KOMK3_FI-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit IMKEY, internal->external for field IMKEY
CALL FUNCTION 'CONVERSION_EXIT_IMKEY_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-IMKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-IMKEY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PPRCT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-PPRCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-PPRCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NPLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-NPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-NPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-FIPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBUND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-VBUND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-VBUND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ETYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-ETYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-ETYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VPTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-VPTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-VPTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-GRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBE2
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-DMBE2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-DMBE2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBE3
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_KOMK3_FI-DMBE3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMK3_FI-DMBE3.
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_KOMK3_FI_STR, 
BUKRS TYPE STRING,
BELNR TYPE STRING,
BSCHL TYPE STRING,
HKONT TYPE STRING,
DMBTR TYPE STRING,
WRBTR TYPE STRING,
DMBE_1 TYPE STRING,
DMBE_2 TYPE STRING,
DMBE_3 TYPE STRING,
MWSKZ TYPE STRING,
XSKRL TYPE STRING,
ZUONR TYPE STRING,
SGTXT TYPE STRING,
KOSTL TYPE STRING,
GSBER TYPE STRING,
PARGB TYPE STRING,
GSBER_GP TYPE STRING,
AUFNR TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
LNRAN TYPE STRING,
ANBWA TYPE STRING,
BEWAR TYPE STRING,
BZDAT TYPE STRING,
MATNR TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
WERKS TYPE STRING,
LIFNR TYPE STRING,
BUZID TYPE STRING,
BUALT TYPE STRING,
KTOSL TYPE STRING,
HRKFT TYPE STRING,
HKMAT TYPE STRING,
IMKEY TYPE STRING,
KSTRG TYPE STRING,
PAOBJNR TYPE STRING,
PRCTR TYPE STRING,
PPRCT TYPE STRING,
PS_PSP_PNR TYPE STRING,
NPLNR TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
AUFPS TYPE STRING,
FIPOS TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
VBUND TYPE STRING,
TXJCD TYPE STRING,
BWKEY TYPE STRING,
BWTAR TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
ETYPE TYPE STRING,
VPTNR TYPE STRING,
XEGDR TYPE STRING,
VALUT TYPE STRING,
RMVCT TYPE STRING,
FISTL TYPE STRING,
GEBER TYPE STRING,
KZBEW TYPE STRING,
FKBER TYPE STRING,
DUMMY_INCL_EEW_COBL TYPE STRING,
DABRZ TYPE STRING,
GRANT_NBR TYPE STRING,
BUDGET_PD TYPE STRING,
DMBE2 TYPE STRING,
DMBE3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KOMK3_FI_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_KOMK3_FI_STR-BUKRS sy-vline 
WA_KOMK3_FI_STR-BELNR sy-vline 
WA_KOMK3_FI_STR-BSCHL sy-vline 
WA_KOMK3_FI_STR-HKONT sy-vline 
WA_KOMK3_FI_STR-DMBTR sy-vline 
WA_KOMK3_FI_STR-WRBTR sy-vline 
WA_KOMK3_FI_STR-DMBE_1 sy-vline 
WA_KOMK3_FI_STR-DMBE_2 sy-vline 
WA_KOMK3_FI_STR-DMBE_3 sy-vline 
WA_KOMK3_FI_STR-MWSKZ sy-vline 
WA_KOMK3_FI_STR-XSKRL sy-vline 
WA_KOMK3_FI_STR-ZUONR sy-vline 
WA_KOMK3_FI_STR-SGTXT sy-vline 
WA_KOMK3_FI_STR-KOSTL sy-vline 
WA_KOMK3_FI_STR-GSBER sy-vline 
WA_KOMK3_FI_STR-PARGB sy-vline 
WA_KOMK3_FI_STR-GSBER_GP sy-vline 
WA_KOMK3_FI_STR-AUFNR sy-vline 
WA_KOMK3_FI_STR-ANLN1 sy-vline 
WA_KOMK3_FI_STR-ANLN2 sy-vline 
WA_KOMK3_FI_STR-LNRAN sy-vline 
WA_KOMK3_FI_STR-ANBWA sy-vline 
WA_KOMK3_FI_STR-BEWAR sy-vline 
WA_KOMK3_FI_STR-BZDAT sy-vline 
WA_KOMK3_FI_STR-MATNR sy-vline 
WA_KOMK3_FI_STR-MENGE sy-vline 
WA_KOMK3_FI_STR-MEINS sy-vline 
WA_KOMK3_FI_STR-WERKS sy-vline 
WA_KOMK3_FI_STR-LIFNR sy-vline 
WA_KOMK3_FI_STR-BUZID sy-vline 
WA_KOMK3_FI_STR-BUALT sy-vline 
WA_KOMK3_FI_STR-KTOSL sy-vline 
WA_KOMK3_FI_STR-HRKFT sy-vline 
WA_KOMK3_FI_STR-HKMAT sy-vline 
WA_KOMK3_FI_STR-IMKEY sy-vline 
WA_KOMK3_FI_STR-KSTRG sy-vline 
WA_KOMK3_FI_STR-PAOBJNR sy-vline 
WA_KOMK3_FI_STR-PRCTR sy-vline 
WA_KOMK3_FI_STR-PPRCT sy-vline 
WA_KOMK3_FI_STR-PS_PSP_PNR sy-vline 
WA_KOMK3_FI_STR-NPLNR sy-vline 
WA_KOMK3_FI_STR-AUFPL sy-vline 
WA_KOMK3_FI_STR-APLZL sy-vline 
WA_KOMK3_FI_STR-AUFPS sy-vline 
WA_KOMK3_FI_STR-FIPOS sy-vline 
WA_KOMK3_FI_STR-KDAUF sy-vline 
WA_KOMK3_FI_STR-KDPOS sy-vline 
WA_KOMK3_FI_STR-VBUND sy-vline 
WA_KOMK3_FI_STR-TXJCD sy-vline 
WA_KOMK3_FI_STR-BWKEY sy-vline 
WA_KOMK3_FI_STR-BWTAR sy-vline 
WA_KOMK3_FI_STR-EBELN sy-vline 
WA_KOMK3_FI_STR-EBELP sy-vline 
WA_KOMK3_FI_STR-ETYPE sy-vline 
WA_KOMK3_FI_STR-VPTNR sy-vline 
WA_KOMK3_FI_STR-XEGDR sy-vline 
WA_KOMK3_FI_STR-VALUT sy-vline 
WA_KOMK3_FI_STR-RMVCT sy-vline 
WA_KOMK3_FI_STR-FISTL sy-vline 
WA_KOMK3_FI_STR-GEBER sy-vline 
WA_KOMK3_FI_STR-KZBEW sy-vline 
WA_KOMK3_FI_STR-FKBER sy-vline 
WA_KOMK3_FI_STR-DUMMY_INCL_EEW_COBL sy-vline 
WA_KOMK3_FI_STR-DABRZ sy-vline 
WA_KOMK3_FI_STR-GRANT_NBR sy-vline 
WA_KOMK3_FI_STR-BUDGET_PD sy-vline 
WA_KOMK3_FI_STR-DMBE2 sy-vline 
WA_KOMK3_FI_STR-DMBE3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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