ABAP Select data from SAP table KOMLFKE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KOMLFKE
*  INTO TABLE @DATA(IT_KOMLFKE2).
*--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_KOMLFKE INDEX 1 INTO DATA(WA_KOMLFKE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KOMLFKE>-OLDNR = 1.
<KOMLFKE>-WBELN = 1.
<KOMLFKE>-LFART = 1.
<KOMLFKE>-LFTYP = 1.
<KOMLFKE>-WFDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KOMLFKE-KALSM, sy-vline,
  WA_KOMLFKE-LIFRE, sy-vline,
  WA_KOMLFKE-LNRZB, sy-vline,
  WA_KOMLFKE-EKORG, sy-vline,
  WA_KOMLFKE-EKGRP, sy-vline,
  WA_KOMLFKE-BUKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KOMLFKE 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_KOMLFKE 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_KOMLFKE INTO WA_KOMLFKE.


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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PARTNER_EXP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMLFKE-PARTNER_EXP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMLFKE-PARTNER_EXP.
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_KOMLFKE_STR, 
OLDNR TYPE STRING,
WBELN TYPE STRING,
LFART TYPE STRING,
LFTYP TYPE STRING,
WFDAT TYPE STRING,
KALSM TYPE STRING,
LIFRE TYPE STRING,
LNRZB TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
BUKRS TYPE STRING,
WAERL TYPE STRING,
WAERS_ISO TYPE STRING,
KAPPL TYPE STRING,
BLDAT TYPE STRING,
XBLNR TYPE STRING,
ZUONR TYPE STRING,
KIDNO TYPE STRING,
WKURS TYPE STRING,
WKURS_DAT TYPE STRING,
KUFIX TYPE STRING,
ZTERM TYPE STRING,
ZBD1T TYPE STRING,
ZBD1P TYPE STRING,
ZBD2T TYPE STRING,
ZBD2P TYPE STRING,
ZBD3T TYPE STRING,
ZLSCH TYPE STRING,
KNUMA TYPE STRING,
LFART_RL TYPE STRING,
VALTG TYPE STRING,
VALDT TYPE STRING,
LOGSYS TYPE STRING,
DIEKZ TYPE STRING,
LANDL TYPE STRING,
LZBKZ TYPE STRING,
BOART TYPE STRING,
LFTYPV TYPE STRING,
LFARV TYPE STRING,
WFDAT_RL TYPE STRING,
RFBSK TYPE STRING,
TESTRUN TYPE STRING,
BAPI_ACTIV TYPE STRING,
ARC_DOC_ID TYPE STRING,
ABART TYPE STRING,
KUNRG TYPE STRING,
KUNRE TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKBUR TYPE STRING,
VKGRP TYPE STRING,
ZTERMD TYPE STRING,
ZBD1TD TYPE STRING,
ZBD1PD TYPE STRING,
ZBD2TD TYPE STRING,
ZBD2PD TYPE STRING,
ZBD3TD TYPE STRING,
ZLSCHD TYPE STRING,
VALTGD TYPE STRING,
VALDTD TYPE STRING,
LFGRU TYPE STRING,
CONTRACT TYPE STRING,
CONTRACT_TYPE TYPE STRING,
SETTLE_CATEGORY TYPE STRING,
KURST TYPE STRING,
IDOBJ_TYPE_V TYPE STRING,
IDOBJ_VENDOR TYPE STRING,
IDOBJ_TYPE_C TYPE STRING,
IDOBJ_CUSTOMER TYPE STRING,
WDTYP TYPE STRING,
POSTING_RULE_K TYPE STRING,
POSTING_RULE_D TYPE STRING,
VKONT TYPE STRING,
COMPOSITE_ACTIVE TYPE STRING,
ESTATUS TYPE STRING,
REF_USE_CASE TYPE STRING,
KKBER TYPE STRING,
ENTITY_TAG TYPE STRING,
MODEL_ADJUSTED TYPE STRING,
PARTNER_MODEL_ADJUSTED TYPE STRING,
PRCD_ELEMENTS_MODEL_ADJUSTED TYPE STRING,
TEXT_MODEL_ADJUSTED TYPE STRING,
TXKRS TYPE STRING,
CTXKRS TYPE STRING,
DUMMY_WBRK_INCL_EEW_PS TYPE STRING,
CID TYPE STRING,
PID TYPE STRING,
IDOBJ_TYPE_PAYEE TYPE STRING,
IDOBJ_PAYEE TYPE STRING,
IDOBJ_TYPE_PAYER TYPE STRING,
IDOBJ_PAYER TYPE STRING,
LANDTX TYPE STRING,
LAND1TX TYPE STRING,
XEGDR TYPE STRING,
STCEG TYPE STRING,
STCEGD TYPE STRING,
LDGRP TYPE STRING,
HXF_BTT_CODE TYPE STRING,
CORR_DOCUMENT TYPE STRING,
LIFNR_FI TYPE STRING,
SERVICE_INDICATOR TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,
NO_INCOTERM_DETERMINATION TYPE STRING,
REPLACEMENT_ACTIVE_ITEM TYPE STRING,
PROCESS_TYPE TYPE STRING,
INCOV TYPE STRING,
INCO2_L TYPE STRING,
INCO3_L TYPE STRING,
IV_CHECK_TYPE_H TYPE STRING,
IV_ACCR TYPE STRING,
USE_CASE TYPE STRING,
USE_CASE_GUID TYPE STRING,
EXP_CLASS TYPE STRING,
EXP_CALC_TYPE TYPE STRING,
REF_VALUE TYPE STRING,
REF_VALUE_REF TYPE STRING,
POST_TYPE TYPE STRING,
TEW_TYPE TYPE STRING,
STEP TYPE STRING,
PARTNER_EXP TYPE STRING,
PARTNER_EXP_TYPE TYPE STRING,
MNDID TYPE STRING,
SETTL_PARTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KOMLFKE_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_KOMLFKE_STR-OLDNR sy-vline 
WA_KOMLFKE_STR-WBELN sy-vline 
WA_KOMLFKE_STR-LFART sy-vline 
WA_KOMLFKE_STR-LFTYP sy-vline 
WA_KOMLFKE_STR-WFDAT sy-vline 
WA_KOMLFKE_STR-KALSM sy-vline 
WA_KOMLFKE_STR-LIFRE sy-vline 
WA_KOMLFKE_STR-LNRZB sy-vline 
WA_KOMLFKE_STR-EKORG sy-vline 
WA_KOMLFKE_STR-EKGRP sy-vline 
WA_KOMLFKE_STR-BUKRS sy-vline 
WA_KOMLFKE_STR-WAERL sy-vline 
WA_KOMLFKE_STR-WAERS_ISO sy-vline 
WA_KOMLFKE_STR-KAPPL sy-vline 
WA_KOMLFKE_STR-BLDAT sy-vline 
WA_KOMLFKE_STR-XBLNR sy-vline 
WA_KOMLFKE_STR-ZUONR sy-vline 
WA_KOMLFKE_STR-KIDNO sy-vline 
WA_KOMLFKE_STR-WKURS sy-vline 
WA_KOMLFKE_STR-WKURS_DAT sy-vline 
WA_KOMLFKE_STR-KUFIX sy-vline 
WA_KOMLFKE_STR-ZTERM sy-vline 
WA_KOMLFKE_STR-ZBD1T sy-vline 
WA_KOMLFKE_STR-ZBD1P sy-vline 
WA_KOMLFKE_STR-ZBD2T sy-vline 
WA_KOMLFKE_STR-ZBD2P sy-vline 
WA_KOMLFKE_STR-ZBD3T sy-vline 
WA_KOMLFKE_STR-ZLSCH sy-vline 
WA_KOMLFKE_STR-KNUMA sy-vline 
WA_KOMLFKE_STR-LFART_RL sy-vline 
WA_KOMLFKE_STR-VALTG sy-vline 
WA_KOMLFKE_STR-VALDT sy-vline 
WA_KOMLFKE_STR-LOGSYS sy-vline 
WA_KOMLFKE_STR-DIEKZ sy-vline 
WA_KOMLFKE_STR-LANDL sy-vline 
WA_KOMLFKE_STR-LZBKZ sy-vline 
WA_KOMLFKE_STR-BOART sy-vline 
WA_KOMLFKE_STR-LFTYPV sy-vline 
WA_KOMLFKE_STR-LFARV sy-vline 
WA_KOMLFKE_STR-WFDAT_RL sy-vline 
WA_KOMLFKE_STR-RFBSK sy-vline 
WA_KOMLFKE_STR-TESTRUN sy-vline 
WA_KOMLFKE_STR-BAPI_ACTIV sy-vline 
WA_KOMLFKE_STR-ARC_DOC_ID sy-vline 
WA_KOMLFKE_STR-ABART sy-vline 
WA_KOMLFKE_STR-KUNRG sy-vline 
WA_KOMLFKE_STR-KUNRE sy-vline 
WA_KOMLFKE_STR-VKORG sy-vline 
WA_KOMLFKE_STR-VTWEG sy-vline 
WA_KOMLFKE_STR-SPART sy-vline 
WA_KOMLFKE_STR-VKBUR sy-vline 
WA_KOMLFKE_STR-VKGRP sy-vline 
WA_KOMLFKE_STR-ZTERMD sy-vline 
WA_KOMLFKE_STR-ZBD1TD sy-vline 
WA_KOMLFKE_STR-ZBD1PD sy-vline 
WA_KOMLFKE_STR-ZBD2TD sy-vline 
WA_KOMLFKE_STR-ZBD2PD sy-vline 
WA_KOMLFKE_STR-ZBD3TD sy-vline 
WA_KOMLFKE_STR-ZLSCHD sy-vline 
WA_KOMLFKE_STR-VALTGD sy-vline 
WA_KOMLFKE_STR-VALDTD sy-vline 
WA_KOMLFKE_STR-LFGRU sy-vline 
WA_KOMLFKE_STR-CONTRACT sy-vline 
WA_KOMLFKE_STR-CONTRACT_TYPE sy-vline 
WA_KOMLFKE_STR-SETTLE_CATEGORY sy-vline 
WA_KOMLFKE_STR-KURST sy-vline 
WA_KOMLFKE_STR-IDOBJ_TYPE_V sy-vline 
WA_KOMLFKE_STR-IDOBJ_VENDOR sy-vline 
WA_KOMLFKE_STR-IDOBJ_TYPE_C sy-vline 
WA_KOMLFKE_STR-IDOBJ_CUSTOMER sy-vline 
WA_KOMLFKE_STR-WDTYP sy-vline 
WA_KOMLFKE_STR-POSTING_RULE_K sy-vline 
WA_KOMLFKE_STR-POSTING_RULE_D sy-vline 
WA_KOMLFKE_STR-VKONT sy-vline 
WA_KOMLFKE_STR-COMPOSITE_ACTIVE sy-vline 
WA_KOMLFKE_STR-ESTATUS sy-vline 
WA_KOMLFKE_STR-REF_USE_CASE sy-vline 
WA_KOMLFKE_STR-KKBER sy-vline 
WA_KOMLFKE_STR-ENTITY_TAG sy-vline 
WA_KOMLFKE_STR-MODEL_ADJUSTED sy-vline 
WA_KOMLFKE_STR-PARTNER_MODEL_ADJUSTED sy-vline 
WA_KOMLFKE_STR-PRCD_ELEMENTS_MODEL_ADJUSTED sy-vline 
WA_KOMLFKE_STR-TEXT_MODEL_ADJUSTED sy-vline 
WA_KOMLFKE_STR-TXKRS sy-vline 
WA_KOMLFKE_STR-CTXKRS sy-vline 
WA_KOMLFKE_STR-DUMMY_WBRK_INCL_EEW_PS sy-vline 
WA_KOMLFKE_STR-CID sy-vline 
WA_KOMLFKE_STR-PID sy-vline 
WA_KOMLFKE_STR-IDOBJ_TYPE_PAYEE sy-vline 
WA_KOMLFKE_STR-IDOBJ_PAYEE sy-vline 
WA_KOMLFKE_STR-IDOBJ_TYPE_PAYER sy-vline 
WA_KOMLFKE_STR-IDOBJ_PAYER sy-vline 
WA_KOMLFKE_STR-LANDTX sy-vline 
WA_KOMLFKE_STR-LAND1TX sy-vline 
WA_KOMLFKE_STR-XEGDR sy-vline 
WA_KOMLFKE_STR-STCEG sy-vline 
WA_KOMLFKE_STR-STCEGD sy-vline 
WA_KOMLFKE_STR-LDGRP sy-vline 
WA_KOMLFKE_STR-HXF_BTT_CODE sy-vline 
WA_KOMLFKE_STR-CORR_DOCUMENT sy-vline 
WA_KOMLFKE_STR-LIFNR_FI sy-vline 
WA_KOMLFKE_STR-SERVICE_INDICATOR sy-vline 
WA_KOMLFKE_STR-INCO1 sy-vline 
WA_KOMLFKE_STR-INCO2 sy-vline 
WA_KOMLFKE_STR-NO_INCOTERM_DETERMINATION sy-vline 
WA_KOMLFKE_STR-REPLACEMENT_ACTIVE_ITEM sy-vline 
WA_KOMLFKE_STR-PROCESS_TYPE sy-vline 
WA_KOMLFKE_STR-INCOV sy-vline 
WA_KOMLFKE_STR-INCO2_L sy-vline 
WA_KOMLFKE_STR-INCO3_L sy-vline 
WA_KOMLFKE_STR-IV_CHECK_TYPE_H sy-vline 
WA_KOMLFKE_STR-IV_ACCR sy-vline 
WA_KOMLFKE_STR-USE_CASE sy-vline 
WA_KOMLFKE_STR-USE_CASE_GUID sy-vline 
WA_KOMLFKE_STR-EXP_CLASS sy-vline 
WA_KOMLFKE_STR-EXP_CALC_TYPE sy-vline 
WA_KOMLFKE_STR-REF_VALUE sy-vline 
WA_KOMLFKE_STR-REF_VALUE_REF sy-vline 
WA_KOMLFKE_STR-POST_TYPE sy-vline 
WA_KOMLFKE_STR-TEW_TYPE sy-vline 
WA_KOMLFKE_STR-STEP sy-vline 
WA_KOMLFKE_STR-PARTNER_EXP sy-vline 
WA_KOMLFKE_STR-PARTNER_EXP_TYPE sy-vline 
WA_KOMLFKE_STR-MNDID sy-vline 
WA_KOMLFKE_STR-SETTL_PARTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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