ABAP Select data from SAP table KOMKBV1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KOMKBV1 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 KOMKBV1. 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 KOMKBV1 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_KOMKBV1 TYPE STANDARD TABLE OF KOMKBV1,
      WA_KOMKBV1 TYPE KOMKBV1,
      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: <KOMKBV1> TYPE KOMKBV1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KOMKBV1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KOMKBV1
  INTO TABLE IT_KOMKBV1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KOMKBV1
*  INTO TABLE @DATA(IT_KOMKBV12).
*--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_KOMKBV1 INDEX 1 INTO DATA(WA_KOMKBV12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KOMKBV1 ASSIGNING <KOMKBV1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KOMKBV1>-VBELN = 1.
<KOMKBV1>-VKORG = 1.
<KOMKBV1>-VTWEG = 1.
<KOMKBV1>-SPART = 1.
<KOMKBV1>-VKBUR = 1.

ENDLOOP.

LOOP AT IT_KOMKBV1 INTO WA_KOMKBV1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KOMKBV1-BZIRK, sy-vline,
  WA_KOMKBV1-VKGRP, sy-vline,
  WA_KOMKBV1-KDGRP, sy-vline,
  WA_KOMKBV1-PARVW, sy-vline,
  WA_KOMKBV1-PARNR, sy-vline,
  WA_KOMKBV1-KNDNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KOMKBV1 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_KOMKBV1 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_KOMKBV1 INTO WA_KOMKBV1.


*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_KOMKBV1-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMKBV1-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field PARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_KOMKBV1-PARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMKBV1-PARVW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMKBV1-PARNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMKBV1-PARNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KNDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMKBV1-KNDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMKBV1-KNDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMKBV1-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMKBV1-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNWE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMKBV1-KUNWE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMKBV1-KUNWE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNRE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMKBV1-KUNRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMKBV1-KUNRE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KNRZE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMKBV1-KNRZE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMKBV1-KNRZE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field AUART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_KOMKBV1-AUART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMKBV1-AUART.
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_KOMKBV1_STR, 
VBELN TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKBUR TYPE STRING,
BZIRK TYPE STRING,
VKGRP TYPE STRING,
KDGRP TYPE STRING,
PARVW TYPE STRING,
PARNR TYPE STRING,
KNDNR TYPE STRING,
KUNNR TYPE STRING,
KUNWE TYPE STRING,
KUNRE TYPE STRING,
KNRZE TYPE STRING,
EKAUF TYPE STRING,
INCO1 TYPE STRING,
VSBED TYPE STRING,
ZTERM TYPE STRING,
VDATU TYPE STRING,
VPRGR TYPE STRING,
NETWR TYPE STRING,
WAERK TYPE STRING,
SUBMI TYPE STRING,
KONDA TYPE STRING,
PLTYP TYPE STRING,
AUART TYPE STRING,
VBTYP TYPE STRING,
AUGRU TYPE STRING,
BESTK TYPE STRING,
ABSTK TYPE STRING,
LIFSK TYPE STRING,
FAKSK TYPE STRING,
UVALS TYPE STRING,
UVVLS TYPE STRING,
UVFAS TYPE STRING,
UVALL TYPE STRING,
UVVLK TYPE STRING,
UVFAK TYPE STRING,
UVPRS TYPE STRING,
TRTYP TYPE STRING,
KKBER TYPE STRING,
SBGRP TYPE STRING,
CMNGV TYPE STRING,
CTLPC TYPE STRING,
CMPSA TYPE STRING,
CMPSB TYPE STRING,
CMPSC TYPE STRING,
CMPSD TYPE STRING,
CMPSE TYPE STRING,
CMPSF TYPE STRING,
CMPSG TYPE STRING,
CMPSH TYPE STRING,
CMPSI TYPE STRING,
CMPSJ TYPE STRING,
CMPSK TYPE STRING,
CMPSL TYPE STRING,
CMPS0 TYPE STRING,
CMPS1 TYPE STRING,
CMPS2 TYPE STRING,
CMPSM TYPE STRING,
CMGST TYPE STRING,
CMPS_CM TYPE STRING,
CMPS_TE TYPE STRING,
KVGR1 TYPE STRING,
KVGR2 TYPE STRING,
KVGR3 TYPE STRING,
KVGR4 TYPE STRING,
KVGR5 TYPE STRING,
COSTA TYPE STRING,
INTCOM TYPE STRING,
LFSTK TYPE STRING,
FKSAK TYPE STRING,
TM_CTRL_KEY TYPE STRING,
SPPAYM TYPE STRING,
VBKLA TYPE STRING,
RETRO_PURCHDOC_CREATION TYPE STRING,
PREVENT_ISSUE_OUTPUT TYPE STRING,
BSTKD TYPE STRING,
ZLSCH TYPE STRING,
MNDID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KOMKBV1_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_KOMKBV1_STR-VBELN sy-vline 
WA_KOMKBV1_STR-VKORG sy-vline 
WA_KOMKBV1_STR-VTWEG sy-vline 
WA_KOMKBV1_STR-SPART sy-vline 
WA_KOMKBV1_STR-VKBUR sy-vline 
WA_KOMKBV1_STR-BZIRK sy-vline 
WA_KOMKBV1_STR-VKGRP sy-vline 
WA_KOMKBV1_STR-KDGRP sy-vline 
WA_KOMKBV1_STR-PARVW sy-vline 
WA_KOMKBV1_STR-PARNR sy-vline 
WA_KOMKBV1_STR-KNDNR sy-vline 
WA_KOMKBV1_STR-KUNNR sy-vline 
WA_KOMKBV1_STR-KUNWE sy-vline 
WA_KOMKBV1_STR-KUNRE sy-vline 
WA_KOMKBV1_STR-KNRZE sy-vline 
WA_KOMKBV1_STR-EKAUF sy-vline 
WA_KOMKBV1_STR-INCO1 sy-vline 
WA_KOMKBV1_STR-VSBED sy-vline 
WA_KOMKBV1_STR-ZTERM sy-vline 
WA_KOMKBV1_STR-VDATU sy-vline 
WA_KOMKBV1_STR-VPRGR sy-vline 
WA_KOMKBV1_STR-NETWR sy-vline 
WA_KOMKBV1_STR-WAERK sy-vline 
WA_KOMKBV1_STR-SUBMI sy-vline 
WA_KOMKBV1_STR-KONDA sy-vline 
WA_KOMKBV1_STR-PLTYP sy-vline 
WA_KOMKBV1_STR-AUART sy-vline 
WA_KOMKBV1_STR-VBTYP sy-vline 
WA_KOMKBV1_STR-AUGRU sy-vline 
WA_KOMKBV1_STR-BESTK sy-vline 
WA_KOMKBV1_STR-ABSTK sy-vline 
WA_KOMKBV1_STR-LIFSK sy-vline 
WA_KOMKBV1_STR-FAKSK sy-vline 
WA_KOMKBV1_STR-UVALS sy-vline 
WA_KOMKBV1_STR-UVVLS sy-vline 
WA_KOMKBV1_STR-UVFAS sy-vline 
WA_KOMKBV1_STR-UVALL sy-vline 
WA_KOMKBV1_STR-UVVLK sy-vline 
WA_KOMKBV1_STR-UVFAK sy-vline 
WA_KOMKBV1_STR-UVPRS sy-vline 
WA_KOMKBV1_STR-TRTYP sy-vline 
WA_KOMKBV1_STR-KKBER sy-vline 
WA_KOMKBV1_STR-SBGRP sy-vline 
WA_KOMKBV1_STR-CMNGV sy-vline 
WA_KOMKBV1_STR-CTLPC sy-vline 
WA_KOMKBV1_STR-CMPSA sy-vline 
WA_KOMKBV1_STR-CMPSB sy-vline 
WA_KOMKBV1_STR-CMPSC sy-vline 
WA_KOMKBV1_STR-CMPSD sy-vline 
WA_KOMKBV1_STR-CMPSE sy-vline 
WA_KOMKBV1_STR-CMPSF sy-vline 
WA_KOMKBV1_STR-CMPSG sy-vline 
WA_KOMKBV1_STR-CMPSH sy-vline 
WA_KOMKBV1_STR-CMPSI sy-vline 
WA_KOMKBV1_STR-CMPSJ sy-vline 
WA_KOMKBV1_STR-CMPSK sy-vline 
WA_KOMKBV1_STR-CMPSL sy-vline 
WA_KOMKBV1_STR-CMPS0 sy-vline 
WA_KOMKBV1_STR-CMPS1 sy-vline 
WA_KOMKBV1_STR-CMPS2 sy-vline 
WA_KOMKBV1_STR-CMPSM sy-vline 
WA_KOMKBV1_STR-CMGST sy-vline 
WA_KOMKBV1_STR-CMPS_CM sy-vline 
WA_KOMKBV1_STR-CMPS_TE sy-vline 
WA_KOMKBV1_STR-KVGR1 sy-vline 
WA_KOMKBV1_STR-KVGR2 sy-vline 
WA_KOMKBV1_STR-KVGR3 sy-vline 
WA_KOMKBV1_STR-KVGR4 sy-vline 
WA_KOMKBV1_STR-KVGR5 sy-vline 
WA_KOMKBV1_STR-COSTA sy-vline 
WA_KOMKBV1_STR-INTCOM sy-vline 
WA_KOMKBV1_STR-LFSTK sy-vline 
WA_KOMKBV1_STR-FKSAK sy-vline 
WA_KOMKBV1_STR-TM_CTRL_KEY sy-vline 
WA_KOMKBV1_STR-SPPAYM sy-vline 
WA_KOMKBV1_STR-VBKLA sy-vline 
WA_KOMKBV1_STR-RETRO_PURCHDOC_CREATION sy-vline 
WA_KOMKBV1_STR-PREVENT_ISSUE_OUTPUT sy-vline 
WA_KOMKBV1_STR-BSTKD sy-vline 
WA_KOMKBV1_STR-ZLSCH sy-vline 
WA_KOMKBV1_STR-MNDID sy-vline      INTO ld_text SEPARATED BY SPACE.

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