ABAP Select data from SAP table KOMKBRW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KOMKBRW
*  INTO TABLE @DATA(IT_KOMKBRW2).
*--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_KOMKBRW INDEX 1 INTO DATA(WA_KOMKBRW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KOMKBRW>-DUMMY = 1.
<KOMKBRW>-TRTYP = 1.
<KOMKBRW>-NRART = 1.
<KOMKBRW>-CLMNO = 1.
<KOMKBRW>-CLMTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KOMKBRW-REFDT, sy-vline,
  WA_KOMKBRW-REFNO, sy-vline,
  WA_KOMKBRW-OLDCN, sy-vline,
  WA_KOMKBRW-AUTNO, sy-vline,
  WA_KOMKBRW-AUTNA, sy-vline,
  WA_KOMKBRW-CLERK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KOMKBRW 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_KOMKBRW 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_KOMKBRW INTO WA_KOMKBRW.


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

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

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

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

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

*Conversion exit GERNR, internal->external for field SERNO
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_KOMKBRW-SERNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMKBRW-SERNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field SERNO2
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_KOMKBRW-SERNO2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMKBRW-SERNO2.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit EXCRT, internal->external for field KURSK
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_KOMKBRW-KURSK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMKBRW-KURSK.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field V_MGANR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMKBRW-V_MGANR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMKBRW-V_MGANR.
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_KOMKBRW_STR, 
DUMMY TYPE STRING,
TRTYP TYPE STRING,
NRART TYPE STRING,
CLMNO TYPE STRING,
CLMTY TYPE STRING,
REFDT TYPE STRING,
REFNO TYPE STRING,
OLDCN TYPE STRING,
AUTNO TYPE STRING,
AUTNA TYPE STRING,
CLERK TYPE STRING,
RELTY TYPE STRING,
RELOB_EXT TYPE STRING,
RELOB TYPE STRING,
RELOT TYPE STRING,
RELDT TYPE STRING,
PARNR TYPE STRING,
PARVW TYPE STRING,
OBJNR TYPE STRING,
ASTATE TYPE STRING,
WERKS TYPE STRING,
QMNUM TYPE STRING,
LOG_HANDLE TYPE STRING,
LOG_MESSAGE TYPE STRING,
CLMGRP TYPE STRING,
RESULT_OUT_MWTY TYPE STRING,
RESULT_IN_MWTY TYPE STRING,
RELTY2 TYPE STRING,
RELOB_EXT2 TYPE STRING,
RELOB2 TYPE STRING,
SERNO TYPE STRING,
SERNO2 TYPE STRING,
CBACTIONDT TYPE STRING,
OR_DUMMY TYPE STRING,
CLOSE_DATE TYPE STRING,
ARCHIV_FLAG TYPE STRING,
VERSN TYPE STRING,
KATEG TYPE STRING,
V_REJCD TYPE STRING,
V_PARNR TYPE STRING,
V_PARVW TYPE STRING,
REFKT TYPE STRING,
REFNR TYPE STRING,
AKTIV TYPE STRING,
FKDAT TYPE STRING,
KNUMV TYPE STRING,
V_CRNCY TYPE STRING,
PRSDT TYPE STRING,
KURSK TYPE STRING,
V_LOG_HANDLE TYPE STRING,
LOG_HDL_DFCT TYPE STRING,
PREV_VERSION TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
V_MDOCM TYPE STRING,
REVERSAL TYPE STRING,
ENDVN TYPE STRING,
EKORG TYPE STRING,
SDVBELN TYPE STRING,
SDPOSNR TYPE STRING,
REFDT_VERS TYPE STRING,
V_MGANR TYPE STRING,
V_GWLDT TYPE STRING,
RESULT_OUT_MWTYV TYPE STRING,
RESULT_IN_MWTYV TYPE STRING,
PRICING_OK TYPE STRING,
NEW_VERSION TYPE STRING,
COMPSEND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KOMKBRW_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_KOMKBRW_STR-DUMMY sy-vline 
WA_KOMKBRW_STR-TRTYP sy-vline 
WA_KOMKBRW_STR-NRART sy-vline 
WA_KOMKBRW_STR-CLMNO sy-vline 
WA_KOMKBRW_STR-CLMTY sy-vline 
WA_KOMKBRW_STR-REFDT sy-vline 
WA_KOMKBRW_STR-REFNO sy-vline 
WA_KOMKBRW_STR-OLDCN sy-vline 
WA_KOMKBRW_STR-AUTNO sy-vline 
WA_KOMKBRW_STR-AUTNA sy-vline 
WA_KOMKBRW_STR-CLERK sy-vline 
WA_KOMKBRW_STR-RELTY sy-vline 
WA_KOMKBRW_STR-RELOB_EXT sy-vline 
WA_KOMKBRW_STR-RELOB sy-vline 
WA_KOMKBRW_STR-RELOT sy-vline 
WA_KOMKBRW_STR-RELDT sy-vline 
WA_KOMKBRW_STR-PARNR sy-vline 
WA_KOMKBRW_STR-PARVW sy-vline 
WA_KOMKBRW_STR-OBJNR sy-vline 
WA_KOMKBRW_STR-ASTATE sy-vline 
WA_KOMKBRW_STR-WERKS sy-vline 
WA_KOMKBRW_STR-QMNUM sy-vline 
WA_KOMKBRW_STR-LOG_HANDLE sy-vline 
WA_KOMKBRW_STR-LOG_MESSAGE sy-vline 
WA_KOMKBRW_STR-CLMGRP sy-vline 
WA_KOMKBRW_STR-RESULT_OUT_MWTY sy-vline 
WA_KOMKBRW_STR-RESULT_IN_MWTY sy-vline 
WA_KOMKBRW_STR-RELTY2 sy-vline 
WA_KOMKBRW_STR-RELOB_EXT2 sy-vline 
WA_KOMKBRW_STR-RELOB2 sy-vline 
WA_KOMKBRW_STR-SERNO sy-vline 
WA_KOMKBRW_STR-SERNO2 sy-vline 
WA_KOMKBRW_STR-CBACTIONDT sy-vline 
WA_KOMKBRW_STR-OR_DUMMY sy-vline 
WA_KOMKBRW_STR-CLOSE_DATE sy-vline 
WA_KOMKBRW_STR-ARCHIV_FLAG sy-vline 
WA_KOMKBRW_STR-VERSN sy-vline 
WA_KOMKBRW_STR-KATEG sy-vline 
WA_KOMKBRW_STR-V_REJCD sy-vline 
WA_KOMKBRW_STR-V_PARNR sy-vline 
WA_KOMKBRW_STR-V_PARVW sy-vline 
WA_KOMKBRW_STR-REFKT sy-vline 
WA_KOMKBRW_STR-REFNR sy-vline 
WA_KOMKBRW_STR-AKTIV sy-vline 
WA_KOMKBRW_STR-FKDAT sy-vline 
WA_KOMKBRW_STR-KNUMV sy-vline 
WA_KOMKBRW_STR-V_CRNCY sy-vline 
WA_KOMKBRW_STR-PRSDT sy-vline 
WA_KOMKBRW_STR-KURSK sy-vline 
WA_KOMKBRW_STR-V_LOG_HANDLE sy-vline 
WA_KOMKBRW_STR-LOG_HDL_DFCT sy-vline 
WA_KOMKBRW_STR-PREV_VERSION sy-vline 
WA_KOMKBRW_STR-VKORG sy-vline 
WA_KOMKBRW_STR-VTWEG sy-vline 
WA_KOMKBRW_STR-SPART sy-vline 
WA_KOMKBRW_STR-V_MDOCM sy-vline 
WA_KOMKBRW_STR-REVERSAL sy-vline 
WA_KOMKBRW_STR-ENDVN sy-vline 
WA_KOMKBRW_STR-EKORG sy-vline 
WA_KOMKBRW_STR-SDVBELN sy-vline 
WA_KOMKBRW_STR-SDPOSNR sy-vline 
WA_KOMKBRW_STR-REFDT_VERS sy-vline 
WA_KOMKBRW_STR-V_MGANR sy-vline 
WA_KOMKBRW_STR-V_GWLDT sy-vline 
WA_KOMKBRW_STR-RESULT_OUT_MWTYV sy-vline 
WA_KOMKBRW_STR-RESULT_IN_MWTYV sy-vline 
WA_KOMKBRW_STR-PRICING_OK sy-vline 
WA_KOMKBRW_STR-NEW_VERSION sy-vline 
WA_KOMKBRW_STR-COMPSEND sy-vline      INTO ld_text SEPARATED BY SPACE.

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