ABAP Select data from SAP table FKKINV_OPK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKINV_OPK
*  INTO TABLE @DATA(IT_FKKINV_OPK2).
*--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_FKKINV_OPK INDEX 1 INTO DATA(WA_FKKINV_OPK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKINV_OPK>-MANDT = 1.
<FKKINV_OPK>-OPBEL = 1.
<FKKINV_OPK>-OPUPK = 1.
<FKKINV_OPK>-BUKRS = 1.
<FKKINV_OPK>-HKONT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKINV_OPK-GSBER, sy-vline,
  WA_FKKINV_OPK-BUPLA, sy-vline,
  WA_FKKINV_OPK-SEGMENT, sy-vline,
  WA_FKKINV_OPK-PRCTR, sy-vline,
  WA_FKKINV_OPK-KOSTL, sy-vline,
  WA_FKKINV_OPK-KDAUF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKINV_OPK 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_FKKINV_OPK 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_FKKINV_OPK INTO WA_FKKINV_OPK.


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

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_FKKINV_OPK-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKINV_OPK-FIPEX.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field BUDGETYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FKKINV_OPK-BUDGETYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKINV_OPK-BUDGETYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field QTY_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FKKINV_OPK-QTY_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKINV_OPK-QTY_UNIT.
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_FKKINV_OPK_STR, 
MANDT TYPE STRING,
OPBEL TYPE STRING,
OPUPK TYPE STRING,
BUKRS TYPE STRING,
HKONT TYPE STRING,
GSBER TYPE STRING,
BUPLA TYPE STRING,
SEGMENT TYPE STRING,
PRCTR TYPE STRING,
KOSTL TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KDEIN TYPE STRING,
PS_PSP_PNR TYPE STRING,
PAOBJNR TYPE STRING,
PASUBNR TYPE STRING,
FDLEV TYPE STRING,
VALUT TYPE STRING,
KURSF TYPE STRING,
BETRH TYPE STRING,
BETRW TYPE STRING,
BETR2 TYPE STRING,
BETR3 TYPE STRING,
WHGRP TYPE STRING,
STRKZ TYPE STRING,
QSSEW TYPE STRING,
TXGRP TYPE STRING,
MWSKZ TYPE STRING,
MWSZKZ TYPE STRING,
TXJCD TYPE STRING,
TXJCO TYPE STRING,
TXCNT TYPE STRING,
TXDAT TYPE STRING,
TXEXK TYPE STRING,
SBASH TYPE STRING,
SBASW TYPE STRING,
NDTAX TYPE STRING,
NDTXH TYPE STRING,
XNDTX TYPE STRING,
KTOSL TYPE STRING,
STPRZ TYPE STRING,
KSCHL TYPE STRING,
AUFNR TYPE STRING,
XEIPH TYPE STRING,
VBUND TYPE STRING,
KONTT TYPE STRING,
KONTL TYPE STRING,
XINTB TYPE STRING,
EUROU TYPE STRING,
FIKEY TYPE STRING,
XCOPA TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
REGIO TYPE STRING,
COUNC TYPE STRING,
GRICD TYPE STRING,
GITYP TYPE STRING,
INTBU TYPE STRING,
NEGBU TYPE STRING,
PSWSL TYPE STRING,
HZUON TYPE STRING,
SGTXT TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
ANBWA TYPE STRING,
BZDAT TYPE STRING,
PSGRP TYPE STRING,
INVGR TYPE STRING,
SCTAX TYPE STRING,
LDGRP TYPE STRING,
AASTA TYPE STRING,
XCSHA TYPE STRING,
REACC TYPE STRING,
REBUK TYPE STRING,
XUSTPD TYPE STRING,
XDEXR TYPE STRING,
FMTYP TYPE STRING,
ORIGFIKRS TYPE STRING,
FIPEX TYPE STRING,
FISTL TYPE STRING,
FONDS TYPE STRING,
FKBER TYPE STRING,
MEASURE TYPE STRING,
GRANT_NBR TYPE STRING,
BUDGETYEAR TYPE STRING,
BUDGET_PD TYPE STRING,
KBLNR TYPE STRING,
KBLPOS TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
SQUAN TYPE STRING,
KUKEY TYPE STRING,
ESNUM TYPE STRING,
LTYPE TYPE STRING,
LNKID TYPE STRING,
_DATAAGING TYPE STRING,
STTAX TYPE STRING,
TXDAT_FROM TYPE STRING,
TAX_COUNTRY TYPE STRING,
TAXC_FACTOR TYPE STRING,
DUMMY_FKKOPK_INCL_EEW_PS TYPE STRING,
SRCDOCCAT TYPE STRING,
SRCDOCNO TYPE STRING,
SRCDOC_CURR TYPE STRING,
SRCDOC_AMT TYPE STRING,
SHKZG TYPE STRING,
FKKOPK_GROUP TYPE STRING,
TAXGR_POSTDOC TYPE STRING,
DEFREV_CAT TYPE STRING,
DEFREV_PDATE TYPE STRING,
DEFREV_ACTION TYPE STRING,
DEFREV_CTYPE TYPE STRING,
DEFREV_ASSKY TYPE STRING,
DEFREV_REF03 TYPE STRING,
ADDITIONAL_ITEM TYPE STRING,
QTY_UNIT TYPE STRING,
QUANTITY TYPE STRING,
RAREL TYPE STRING,
SERVICE_TYPE TYPE STRING,
POSNR_SD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKINV_OPK_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_FKKINV_OPK_STR-MANDT sy-vline 
WA_FKKINV_OPK_STR-OPBEL sy-vline 
WA_FKKINV_OPK_STR-OPUPK sy-vline 
WA_FKKINV_OPK_STR-BUKRS sy-vline 
WA_FKKINV_OPK_STR-HKONT sy-vline 
WA_FKKINV_OPK_STR-GSBER sy-vline 
WA_FKKINV_OPK_STR-BUPLA sy-vline 
WA_FKKINV_OPK_STR-SEGMENT sy-vline 
WA_FKKINV_OPK_STR-PRCTR sy-vline 
WA_FKKINV_OPK_STR-KOSTL sy-vline 
WA_FKKINV_OPK_STR-KDAUF sy-vline 
WA_FKKINV_OPK_STR-KDPOS sy-vline 
WA_FKKINV_OPK_STR-KDEIN sy-vline 
WA_FKKINV_OPK_STR-PS_PSP_PNR sy-vline 
WA_FKKINV_OPK_STR-PAOBJNR sy-vline 
WA_FKKINV_OPK_STR-PASUBNR sy-vline 
WA_FKKINV_OPK_STR-FDLEV sy-vline 
WA_FKKINV_OPK_STR-VALUT sy-vline 
WA_FKKINV_OPK_STR-KURSF sy-vline 
WA_FKKINV_OPK_STR-BETRH sy-vline 
WA_FKKINV_OPK_STR-BETRW sy-vline 
WA_FKKINV_OPK_STR-BETR2 sy-vline 
WA_FKKINV_OPK_STR-BETR3 sy-vline 
WA_FKKINV_OPK_STR-WHGRP sy-vline 
WA_FKKINV_OPK_STR-STRKZ sy-vline 
WA_FKKINV_OPK_STR-QSSEW sy-vline 
WA_FKKINV_OPK_STR-TXGRP sy-vline 
WA_FKKINV_OPK_STR-MWSKZ sy-vline 
WA_FKKINV_OPK_STR-MWSZKZ sy-vline 
WA_FKKINV_OPK_STR-TXJCD sy-vline 
WA_FKKINV_OPK_STR-TXJCO sy-vline 
WA_FKKINV_OPK_STR-TXCNT sy-vline 
WA_FKKINV_OPK_STR-TXDAT sy-vline 
WA_FKKINV_OPK_STR-TXEXK sy-vline 
WA_FKKINV_OPK_STR-SBASH sy-vline 
WA_FKKINV_OPK_STR-SBASW sy-vline 
WA_FKKINV_OPK_STR-NDTAX sy-vline 
WA_FKKINV_OPK_STR-NDTXH sy-vline 
WA_FKKINV_OPK_STR-XNDTX sy-vline 
WA_FKKINV_OPK_STR-KTOSL sy-vline 
WA_FKKINV_OPK_STR-STPRZ sy-vline 
WA_FKKINV_OPK_STR-KSCHL sy-vline 
WA_FKKINV_OPK_STR-AUFNR sy-vline 
WA_FKKINV_OPK_STR-XEIPH sy-vline 
WA_FKKINV_OPK_STR-VBUND sy-vline 
WA_FKKINV_OPK_STR-KONTT sy-vline 
WA_FKKINV_OPK_STR-KONTL sy-vline 
WA_FKKINV_OPK_STR-XINTB sy-vline 
WA_FKKINV_OPK_STR-EUROU sy-vline 
WA_FKKINV_OPK_STR-FIKEY sy-vline 
WA_FKKINV_OPK_STR-XCOPA sy-vline 
WA_FKKINV_OPK_STR-MENGE sy-vline 
WA_FKKINV_OPK_STR-MEINS sy-vline 
WA_FKKINV_OPK_STR-REGIO sy-vline 
WA_FKKINV_OPK_STR-COUNC sy-vline 
WA_FKKINV_OPK_STR-GRICD sy-vline 
WA_FKKINV_OPK_STR-GITYP sy-vline 
WA_FKKINV_OPK_STR-INTBU sy-vline 
WA_FKKINV_OPK_STR-NEGBU sy-vline 
WA_FKKINV_OPK_STR-PSWSL sy-vline 
WA_FKKINV_OPK_STR-HZUON sy-vline 
WA_FKKINV_OPK_STR-SGTXT sy-vline 
WA_FKKINV_OPK_STR-ANLN1 sy-vline 
WA_FKKINV_OPK_STR-ANLN2 sy-vline 
WA_FKKINV_OPK_STR-ANBWA sy-vline 
WA_FKKINV_OPK_STR-BZDAT sy-vline 
WA_FKKINV_OPK_STR-PSGRP sy-vline 
WA_FKKINV_OPK_STR-INVGR sy-vline 
WA_FKKINV_OPK_STR-SCTAX sy-vline 
WA_FKKINV_OPK_STR-LDGRP sy-vline 
WA_FKKINV_OPK_STR-AASTA sy-vline 
WA_FKKINV_OPK_STR-XCSHA sy-vline 
WA_FKKINV_OPK_STR-REACC sy-vline 
WA_FKKINV_OPK_STR-REBUK sy-vline 
WA_FKKINV_OPK_STR-XUSTPD sy-vline 
WA_FKKINV_OPK_STR-XDEXR sy-vline 
WA_FKKINV_OPK_STR-FMTYP sy-vline 
WA_FKKINV_OPK_STR-ORIGFIKRS sy-vline 
WA_FKKINV_OPK_STR-FIPEX sy-vline 
WA_FKKINV_OPK_STR-FISTL sy-vline 
WA_FKKINV_OPK_STR-FONDS sy-vline 
WA_FKKINV_OPK_STR-FKBER sy-vline 
WA_FKKINV_OPK_STR-MEASURE sy-vline 
WA_FKKINV_OPK_STR-GRANT_NBR sy-vline 
WA_FKKINV_OPK_STR-BUDGETYEAR sy-vline 
WA_FKKINV_OPK_STR-BUDGET_PD sy-vline 
WA_FKKINV_OPK_STR-KBLNR sy-vline 
WA_FKKINV_OPK_STR-KBLPOS sy-vline 
WA_FKKINV_OPK_STR-HBKID sy-vline 
WA_FKKINV_OPK_STR-HKTID sy-vline 
WA_FKKINV_OPK_STR-SQUAN sy-vline 
WA_FKKINV_OPK_STR-KUKEY sy-vline 
WA_FKKINV_OPK_STR-ESNUM sy-vline 
WA_FKKINV_OPK_STR-LTYPE sy-vline 
WA_FKKINV_OPK_STR-LNKID sy-vline 
WA_FKKINV_OPK_STR-_DATAAGING sy-vline 
WA_FKKINV_OPK_STR-STTAX sy-vline 
WA_FKKINV_OPK_STR-TXDAT_FROM sy-vline 
WA_FKKINV_OPK_STR-TAX_COUNTRY sy-vline 
WA_FKKINV_OPK_STR-TAXC_FACTOR sy-vline 
WA_FKKINV_OPK_STR-DUMMY_FKKOPK_INCL_EEW_PS sy-vline 
WA_FKKINV_OPK_STR-SRCDOCCAT sy-vline 
WA_FKKINV_OPK_STR-SRCDOCNO sy-vline 
WA_FKKINV_OPK_STR-SRCDOC_CURR sy-vline 
WA_FKKINV_OPK_STR-SRCDOC_AMT sy-vline 
WA_FKKINV_OPK_STR-SHKZG sy-vline 
WA_FKKINV_OPK_STR-FKKOPK_GROUP sy-vline 
WA_FKKINV_OPK_STR-TAXGR_POSTDOC sy-vline 
WA_FKKINV_OPK_STR-DEFREV_CAT sy-vline 
WA_FKKINV_OPK_STR-DEFREV_PDATE sy-vline 
WA_FKKINV_OPK_STR-DEFREV_ACTION sy-vline 
WA_FKKINV_OPK_STR-DEFREV_CTYPE sy-vline 
WA_FKKINV_OPK_STR-DEFREV_ASSKY sy-vline 
WA_FKKINV_OPK_STR-DEFREV_REF03 sy-vline 
WA_FKKINV_OPK_STR-ADDITIONAL_ITEM sy-vline 
WA_FKKINV_OPK_STR-QTY_UNIT sy-vline 
WA_FKKINV_OPK_STR-QUANTITY sy-vline 
WA_FKKINV_OPK_STR-RAREL sy-vline 
WA_FKKINV_OPK_STR-SERVICE_TYPE sy-vline 
WA_FKKINV_OPK_STR-POSNR_SD sy-vline      INTO ld_text SEPARATED BY SPACE.

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