ABAP Select data from SAP table E3KOMG into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E3KOMG 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 E3KOMG. 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 E3KOMG 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_E3KOMG TYPE STANDARD TABLE OF E3KOMG,
      WA_E3KOMG TYPE E3KOMG,
      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: <E3KOMG> TYPE E3KOMG.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E3KOMG.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E3KOMG
  INTO TABLE IT_E3KOMG.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E3KOMG
*  INTO TABLE @DATA(IT_E3KOMG2).
*--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_E3KOMG INDEX 1 INTO DATA(WA_E3KOMG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E3KOMG ASSIGNING <E3KOMG>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E3KOMG>-KVEWE = 1.
<E3KOMG>-KOTABNR = 1.
<E3KOMG>-KAPPL = 1.
<E3KOMG>-KSCHL = 1.
<E3KOMG>-VAKEY = 1.

ENDLOOP.

LOOP AT IT_E3KOMG INTO WA_E3KOMG.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E3KOMG-VKORG, sy-vline,
  WA_E3KOMG-VTWEG, sy-vline,
  WA_E3KOMG-SPART, sy-vline,
  WA_E3KOMG-KUNNR, sy-vline,
  WA_E3KOMG-KDGRP, sy-vline,
  WA_E3KOMG-PLTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E3KOMG 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_E3KOMG 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_E3KOMG INTO WA_E3KOMG.


*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 KOTAB, internal->external for field KOTABNR
CALL FUNCTION 'CONVERSION_EXIT_KOTAB_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-KOTABNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-KOTABNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOLIF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-KOLIF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-KOLIF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EAN11, internal->external for field EAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-EAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-EAN11.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-MEEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-MEEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-INFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-INFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EVRTN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-EVRTN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-EVRTN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFRE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-LIFRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-LIFRE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BSTME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-BSTME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-BSTME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HIENR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-HIENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-HIENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field UPMAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-UPMAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-UPMAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field AUART_SD
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-AUART_SD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-AUART_SD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LHIENR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-LHIENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-LHIENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AKTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3KOMG-AKTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3KOMG-AKTNR.
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_E3KOMG_STR, 
KVEWE TYPE STRING,
KOTABNR TYPE STRING,
KAPPL TYPE STRING,
KSCHL TYPE STRING,
VAKEY TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
KUNNR TYPE STRING,
KDGRP TYPE STRING,
PLTYP TYPE STRING,
KONDA TYPE STRING,
KONDM TYPE STRING,
WAERK TYPE STRING,
MATNR TYPE STRING,
BWTAR TYPE STRING,
CHARG TYPE STRING,
PRODH TYPE STRING,
MEINS TYPE STRING,
BONUS TYPE STRING,
EBONU TYPE STRING,
PROVG TYPE STRING,
ALAND TYPE STRING,
WKREG TYPE STRING,
WKCOU TYPE STRING,
WKCTY TYPE STRING,
LLAND TYPE STRING,
REGIO TYPE STRING,
COUNC TYPE STRING,
CITYC TYPE STRING,
TAXM1 TYPE STRING,
TAXM2 TYPE STRING,
TAXM3 TYPE STRING,
TAXM4 TYPE STRING,
TAXM5 TYPE STRING,
TAXM6 TYPE STRING,
TAXM7 TYPE STRING,
TAXM8 TYPE STRING,
TAXM9 TYPE STRING,
TAXK1 TYPE STRING,
TAXK2 TYPE STRING,
TAXK3 TYPE STRING,
TAXK4 TYPE STRING,
TAXK5 TYPE STRING,
TAXK6 TYPE STRING,
TAXK7 TYPE STRING,
TAXK8 TYPE STRING,
TAXK9 TYPE STRING,
LIFNR TYPE STRING,
MATKL TYPE STRING,
EKORG TYPE STRING,
ESOKZ TYPE STRING,
WERKS TYPE STRING,
RESWK TYPE STRING,
KOLIF TYPE STRING,
LTSNR TYPE STRING,
WGLIF TYPE STRING,
MWSKZ TYPE STRING,
WERKV TYPE STRING,
WAGRP TYPE STRING,
VRKME TYPE STRING,
EAN11 TYPE STRING,
EANNR TYPE STRING,
AUART TYPE STRING,
MEEIN TYPE STRING,
INFNR TYPE STRING,
EVRTN TYPE STRING,
EVRTP TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,
BUKRS TYPE STRING,
MTART TYPE STRING,
LIFRE TYPE STRING,
EKKOL TYPE STRING,
EKKOA TYPE STRING,
BSTME TYPE STRING,
WGHIE TYPE STRING,
TAXIM TYPE STRING,
TAXIK TYPE STRING,
TAXIW TYPE STRING,
TAXIL TYPE STRING,
TAXIR TYPE STRING,
TXJCD TYPE STRING,
FKART TYPE STRING,
VKORGAU TYPE STRING,
HIENR TYPE STRING,
VARCOND TYPE STRING,
LAND1 TYPE STRING,
ZTERM TYPE STRING,
GZOLX TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
UPMAT TYPE STRING,
UKONM TYPE STRING,
ANZSN TYPE STRING,
AUART_SD TYPE STRING,
PRODH1 TYPE STRING,
PRODH2 TYPE STRING,
PRODH3 TYPE STRING,
BZIRK TYPE STRING,
VKGRP TYPE STRING,
BRSCH TYPE STRING,
VKBUR TYPE STRING,
PRCTR TYPE STRING,
LHIENR TYPE STRING,
KDKGR TYPE STRING,
BSTYP TYPE STRING,
BSART TYPE STRING,
EKGRP TYPE STRING,
AKTNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E3KOMG_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_E3KOMG_STR-KVEWE sy-vline 
WA_E3KOMG_STR-KOTABNR sy-vline 
WA_E3KOMG_STR-KAPPL sy-vline 
WA_E3KOMG_STR-KSCHL sy-vline 
WA_E3KOMG_STR-VAKEY sy-vline 
WA_E3KOMG_STR-VKORG sy-vline 
WA_E3KOMG_STR-VTWEG sy-vline 
WA_E3KOMG_STR-SPART sy-vline 
WA_E3KOMG_STR-KUNNR sy-vline 
WA_E3KOMG_STR-KDGRP sy-vline 
WA_E3KOMG_STR-PLTYP sy-vline 
WA_E3KOMG_STR-KONDA sy-vline 
WA_E3KOMG_STR-KONDM sy-vline 
WA_E3KOMG_STR-WAERK sy-vline 
WA_E3KOMG_STR-MATNR sy-vline 
WA_E3KOMG_STR-BWTAR sy-vline 
WA_E3KOMG_STR-CHARG sy-vline 
WA_E3KOMG_STR-PRODH sy-vline 
WA_E3KOMG_STR-MEINS sy-vline 
WA_E3KOMG_STR-BONUS sy-vline 
WA_E3KOMG_STR-EBONU sy-vline 
WA_E3KOMG_STR-PROVG sy-vline 
WA_E3KOMG_STR-ALAND sy-vline 
WA_E3KOMG_STR-WKREG sy-vline 
WA_E3KOMG_STR-WKCOU sy-vline 
WA_E3KOMG_STR-WKCTY sy-vline 
WA_E3KOMG_STR-LLAND sy-vline 
WA_E3KOMG_STR-REGIO sy-vline 
WA_E3KOMG_STR-COUNC sy-vline 
WA_E3KOMG_STR-CITYC sy-vline 
WA_E3KOMG_STR-TAXM1 sy-vline 
WA_E3KOMG_STR-TAXM2 sy-vline 
WA_E3KOMG_STR-TAXM3 sy-vline 
WA_E3KOMG_STR-TAXM4 sy-vline 
WA_E3KOMG_STR-TAXM5 sy-vline 
WA_E3KOMG_STR-TAXM6 sy-vline 
WA_E3KOMG_STR-TAXM7 sy-vline 
WA_E3KOMG_STR-TAXM8 sy-vline 
WA_E3KOMG_STR-TAXM9 sy-vline 
WA_E3KOMG_STR-TAXK1 sy-vline 
WA_E3KOMG_STR-TAXK2 sy-vline 
WA_E3KOMG_STR-TAXK3 sy-vline 
WA_E3KOMG_STR-TAXK4 sy-vline 
WA_E3KOMG_STR-TAXK5 sy-vline 
WA_E3KOMG_STR-TAXK6 sy-vline 
WA_E3KOMG_STR-TAXK7 sy-vline 
WA_E3KOMG_STR-TAXK8 sy-vline 
WA_E3KOMG_STR-TAXK9 sy-vline 
WA_E3KOMG_STR-LIFNR sy-vline 
WA_E3KOMG_STR-MATKL sy-vline 
WA_E3KOMG_STR-EKORG sy-vline 
WA_E3KOMG_STR-ESOKZ sy-vline 
WA_E3KOMG_STR-WERKS sy-vline 
WA_E3KOMG_STR-RESWK sy-vline 
WA_E3KOMG_STR-KOLIF sy-vline 
WA_E3KOMG_STR-LTSNR sy-vline 
WA_E3KOMG_STR-WGLIF sy-vline 
WA_E3KOMG_STR-MWSKZ sy-vline 
WA_E3KOMG_STR-WERKV sy-vline 
WA_E3KOMG_STR-WAGRP sy-vline 
WA_E3KOMG_STR-VRKME sy-vline 
WA_E3KOMG_STR-EAN11 sy-vline 
WA_E3KOMG_STR-EANNR sy-vline 
WA_E3KOMG_STR-AUART sy-vline 
WA_E3KOMG_STR-MEEIN sy-vline 
WA_E3KOMG_STR-INFNR sy-vline 
WA_E3KOMG_STR-EVRTN sy-vline 
WA_E3KOMG_STR-EVRTP sy-vline 
WA_E3KOMG_STR-INCO1 sy-vline 
WA_E3KOMG_STR-INCO2 sy-vline 
WA_E3KOMG_STR-BUKRS sy-vline 
WA_E3KOMG_STR-MTART sy-vline 
WA_E3KOMG_STR-LIFRE sy-vline 
WA_E3KOMG_STR-EKKOL sy-vline 
WA_E3KOMG_STR-EKKOA sy-vline 
WA_E3KOMG_STR-BSTME sy-vline 
WA_E3KOMG_STR-WGHIE sy-vline 
WA_E3KOMG_STR-TAXIM sy-vline 
WA_E3KOMG_STR-TAXIK sy-vline 
WA_E3KOMG_STR-TAXIW sy-vline 
WA_E3KOMG_STR-TAXIL sy-vline 
WA_E3KOMG_STR-TAXIR sy-vline 
WA_E3KOMG_STR-TXJCD sy-vline 
WA_E3KOMG_STR-FKART sy-vline 
WA_E3KOMG_STR-VKORGAU sy-vline 
WA_E3KOMG_STR-HIENR sy-vline 
WA_E3KOMG_STR-VARCOND sy-vline 
WA_E3KOMG_STR-LAND1 sy-vline 
WA_E3KOMG_STR-ZTERM sy-vline 
WA_E3KOMG_STR-GZOLX sy-vline 
WA_E3KOMG_STR-VBELN sy-vline 
WA_E3KOMG_STR-POSNR sy-vline 
WA_E3KOMG_STR-UPMAT sy-vline 
WA_E3KOMG_STR-UKONM sy-vline 
WA_E3KOMG_STR-ANZSN sy-vline 
WA_E3KOMG_STR-AUART_SD sy-vline 
WA_E3KOMG_STR-PRODH1 sy-vline 
WA_E3KOMG_STR-PRODH2 sy-vline 
WA_E3KOMG_STR-PRODH3 sy-vline 
WA_E3KOMG_STR-BZIRK sy-vline 
WA_E3KOMG_STR-VKGRP sy-vline 
WA_E3KOMG_STR-BRSCH sy-vline 
WA_E3KOMG_STR-VKBUR sy-vline 
WA_E3KOMG_STR-PRCTR sy-vline 
WA_E3KOMG_STR-LHIENR sy-vline 
WA_E3KOMG_STR-KDKGR sy-vline 
WA_E3KOMG_STR-BSTYP sy-vline 
WA_E3KOMG_STR-BSART sy-vline 
WA_E3KOMG_STR-EKGRP sy-vline 
WA_E3KOMG_STR-AKTNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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