ABAP Select data from SAP table FKKINVDOC_I_GFN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKINVDOC_I_GFN
*  INTO TABLE @DATA(IT_FKKINVDOC_I_GFN2).
*--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_FKKINVDOC_I_GFN INDEX 1 INTO DATA(WA_FKKINVDOC_I_GFN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKINVDOC_I_GFN>-CAINVOICINGDOCUMENT = 1.
<FKKINVDOC_I_GFN>-CAINVCGDOCITEM = 1.
<FKKINVDOC_I_GFN>-CAINVCGDOCUMENTITEMTYPE = 1.
<FKKINVDOC_I_GFN>-COMPANYCODE = 1.
<FKKINVDOC_I_GFN>-DIVISION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKINVDOC_I_GFN-CACONTRACT, sy-vline,
  WA_FKKINVDOC_I_GFN-CAPROVIDERCONTRACTITEMNUMBER, sy-vline,
  WA_FKKINVDOC_I_GFN-CASUBAPPLICATION, sy-vline,
  WA_FKKINVDOC_I_GFN-CAINVCGITMALTVBUSINESSPARTNER, sy-vline,
  WA_FKKINVDOC_I_GFN-CAINVCGITMALTVCONTRACTACCOUNT, sy-vline,
  WA_FKKINVDOC_I_GFN-CAINVCGDOCITMALTVMDCAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKINVDOC_I_GFN 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_FKKINVDOC_I_GFN 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_FKKINVDOC_I_GFN INTO WA_FKKINVDOC_I_GFN.


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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field CAINVCGSOURCEDOCUMENTITEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKINVDOC_I_GFN-CAINVCGSOURCEDOCUMENTITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKINVDOC_I_GFN-CAINVCGSOURCEDOCUMENTITEM.
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_FKKINVDOC_I_GFN_STR, 
CAINVOICINGDOCUMENT TYPE STRING,
CAINVCGDOCITEM TYPE STRING,
CAINVCGDOCUMENTITEMTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
DIVISION TYPE STRING,
CACONTRACT TYPE STRING,
CAPROVIDERCONTRACTITEMNUMBER TYPE STRING,
CASUBAPPLICATION TYPE STRING,
CAINVCGITMALTVBUSINESSPARTNER TYPE STRING,
CAINVCGITMALTVCONTRACTACCOUNT TYPE STRING,
CAINVCGDOCITMALTVMDCAT TYPE STRING,
CAMAINTRANSACTION TYPE STRING,
CASUBTRANSACTION TYPE STRING,
CAISDOCITEMSIMULATED TYPE STRING,
CAINVCGDOCITEMISREVERSAL TYPE STRING,
CAINVCGCORRECTIONCATEGORY TYPE STRING,
CAINVCGISINFINALAMT TYPE STRING,
CAINVCGISITEMPOSTINGRELEVANT TYPE STRING,
CAINVCGISNOTBPRELEVANT TYPE STRING,
CAINVCGISITEMPRINTINGRELEVANT TYPE STRING,
CAINVCGSUBSTITUTEGROUPPRINTING TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
CAAMOUNTINTRANSACTIONCURRENCY TYPE STRING,
CACURRENCYSOURCEDOCUMENT TYPE STRING,
CAINVCGSOURCEDOCUMENTAMOUNT TYPE STRING,
CAGROUPINGCURRENCYTRANSLATION TYPE STRING,
CAACCOUNTDETERMINATIONCODE TYPE STRING,
BUSINESSPLACE TYPE STRING,
BUSINESSAREA TYPE STRING,
CATAXISINCLUDED TYPE STRING,
CATAXDETNTYPE TYPE STRING,
CAINVCGTAXGROUPINGKEY TYPE STRING,
CAOTHERTAXCODE TYPE STRING,
TAXCODE TYPE STRING,
CATAXDETERMINATIONCODE TYPE STRING,
TAXJURISDICTION TYPE STRING,
CATRANSACTIONKEYACCOUNTDETN TYPE STRING,
CACONDITIONTYPE TYPE STRING,
CATAXRATEINPERCENT TYPE STRING,
TAXCOUNTRY TYPE STRING,
CATAXDATE TYPE STRING,
CATAXBASEAMOUNT TYPE STRING,
CATAXAMOUNTINTRANSCURRENCY TYPE STRING,
CATAXPORTIONINTRANSCURRENCY TYPE STRING,
WITHHOLDINGTAXCODE TYPE STRING,
CAISDOWNPAYMENTREQUEST TYPE STRING,
CASTATISTICALITEMCODE TYPE STRING,
CAINVCGOFFSETTINGCATEGORY TYPE STRING,
CAINVCGOFFSETTINGPROCEDURE TYPE STRING,
CAINVCGOFFSETTINGACTION TYPE STRING,
CAINVCGOFFSETTINGGROUP TYPE STRING,
CAINVCGDFRRDREVENUESTATUS TYPE STRING,
CAISREVENUEACCOUNTINGRELEVANT TYPE STRING,
CAINVCGREVENUEGROUPING TYPE STRING,
CAREVENUEACCOUNTINGSERVICETYPE TYPE STRING,
CAISPREPAID TYPE STRING,
UNITOFMEASURE TYPE STRING,
QUANTITY TYPE STRING,
CANETDUEDATE TYPE STRING,
CACASHDISCOUNTDUEDATE TYPE STRING,
CACASHDISCOUNTRATE TYPE STRING,
CAINVCGDOCITEMDEFSTATUS TYPE STRING,
CAITEMPERIODSTARTDATE TYPE STRING,
CAITEMPERIODENDDATE TYPE STRING,
CAINVCGREFPOSTINGDOCTYPE TYPE STRING,
CADOCUMENTNUMBER TYPE STRING,
CAGROUPINGKEYDOCUMENTITEMS TYPE STRING,
CAINVCGGROUPINGKEY TYPE STRING,
CACLEARINGDOCUMENTNUMBER TYPE STRING,
CACLEARINGAMOUNTINTRANSCRCY TYPE STRING,
CAINVCGDOCITEMCRTNMETHOD TYPE STRING,
CAINVCGFUNCTION TYPE STRING,
CAINVCGSOURCEDOCUMENTCAT TYPE STRING,
CAINVCGSOURCEDOCUMENTNUMBER TYPE STRING,
CAINVCGDOCITEMSOURCEITMCAT TYPE STRING,
CAINVCGSOURCEDOCUMENTITEM TYPE STRING,
CAINVCGACCRUALPOSTINGTYPE TYPE STRING,
CABLLBLEITMDISCOUNTKEY TYPE STRING,
CABLLBLEITMDISCOUNTVERSION TYPE STRING,
DUMMY_INVDOC_I_INCL_EEW_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKINVDOC_I_GFN_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_FKKINVDOC_I_GFN_STR-CAINVOICINGDOCUMENT sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGDOCITEM sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGDOCUMENTITEMTYPE sy-vline 
WA_FKKINVDOC_I_GFN_STR-COMPANYCODE sy-vline 
WA_FKKINVDOC_I_GFN_STR-DIVISION sy-vline 
WA_FKKINVDOC_I_GFN_STR-CACONTRACT sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAPROVIDERCONTRACTITEMNUMBER sy-vline 
WA_FKKINVDOC_I_GFN_STR-CASUBAPPLICATION sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGITMALTVBUSINESSPARTNER sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGITMALTVCONTRACTACCOUNT sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGDOCITMALTVMDCAT sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAMAINTRANSACTION sy-vline 
WA_FKKINVDOC_I_GFN_STR-CASUBTRANSACTION sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAISDOCITEMSIMULATED sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGDOCITEMISREVERSAL sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGCORRECTIONCATEGORY sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGISINFINALAMT sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGISITEMPOSTINGRELEVANT sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGISNOTBPRELEVANT sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGISITEMPRINTINGRELEVANT sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGSUBSTITUTEGROUPPRINTING sy-vline 
WA_FKKINVDOC_I_GFN_STR-TRANSACTIONCURRENCY sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAAMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_FKKINVDOC_I_GFN_STR-CACURRENCYSOURCEDOCUMENT sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGSOURCEDOCUMENTAMOUNT sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAGROUPINGCURRENCYTRANSLATION sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAACCOUNTDETERMINATIONCODE sy-vline 
WA_FKKINVDOC_I_GFN_STR-BUSINESSPLACE sy-vline 
WA_FKKINVDOC_I_GFN_STR-BUSINESSAREA sy-vline 
WA_FKKINVDOC_I_GFN_STR-CATAXISINCLUDED sy-vline 
WA_FKKINVDOC_I_GFN_STR-CATAXDETNTYPE sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGTAXGROUPINGKEY sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAOTHERTAXCODE sy-vline 
WA_FKKINVDOC_I_GFN_STR-TAXCODE sy-vline 
WA_FKKINVDOC_I_GFN_STR-CATAXDETERMINATIONCODE sy-vline 
WA_FKKINVDOC_I_GFN_STR-TAXJURISDICTION sy-vline 
WA_FKKINVDOC_I_GFN_STR-CATRANSACTIONKEYACCOUNTDETN sy-vline 
WA_FKKINVDOC_I_GFN_STR-CACONDITIONTYPE sy-vline 
WA_FKKINVDOC_I_GFN_STR-CATAXRATEINPERCENT sy-vline 
WA_FKKINVDOC_I_GFN_STR-TAXCOUNTRY sy-vline 
WA_FKKINVDOC_I_GFN_STR-CATAXDATE sy-vline 
WA_FKKINVDOC_I_GFN_STR-CATAXBASEAMOUNT sy-vline 
WA_FKKINVDOC_I_GFN_STR-CATAXAMOUNTINTRANSCURRENCY sy-vline 
WA_FKKINVDOC_I_GFN_STR-CATAXPORTIONINTRANSCURRENCY sy-vline 
WA_FKKINVDOC_I_GFN_STR-WITHHOLDINGTAXCODE sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAISDOWNPAYMENTREQUEST sy-vline 
WA_FKKINVDOC_I_GFN_STR-CASTATISTICALITEMCODE sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGOFFSETTINGCATEGORY sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGOFFSETTINGPROCEDURE sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGOFFSETTINGACTION sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGOFFSETTINGGROUP sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGDFRRDREVENUESTATUS sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAISREVENUEACCOUNTINGRELEVANT sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGREVENUEGROUPING sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAREVENUEACCOUNTINGSERVICETYPE sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAISPREPAID sy-vline 
WA_FKKINVDOC_I_GFN_STR-UNITOFMEASURE sy-vline 
WA_FKKINVDOC_I_GFN_STR-QUANTITY sy-vline 
WA_FKKINVDOC_I_GFN_STR-CANETDUEDATE sy-vline 
WA_FKKINVDOC_I_GFN_STR-CACASHDISCOUNTDUEDATE sy-vline 
WA_FKKINVDOC_I_GFN_STR-CACASHDISCOUNTRATE sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGDOCITEMDEFSTATUS sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAITEMPERIODSTARTDATE sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAITEMPERIODENDDATE sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGREFPOSTINGDOCTYPE sy-vline 
WA_FKKINVDOC_I_GFN_STR-CADOCUMENTNUMBER sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAGROUPINGKEYDOCUMENTITEMS sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGGROUPINGKEY sy-vline 
WA_FKKINVDOC_I_GFN_STR-CACLEARINGDOCUMENTNUMBER sy-vline 
WA_FKKINVDOC_I_GFN_STR-CACLEARINGAMOUNTINTRANSCRCY sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGDOCITEMCRTNMETHOD sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGFUNCTION sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGSOURCEDOCUMENTCAT sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGSOURCEDOCUMENTNUMBER sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGDOCITEMSOURCEITMCAT sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGSOURCEDOCUMENTITEM sy-vline 
WA_FKKINVDOC_I_GFN_STR-CAINVCGACCRUALPOSTINGTYPE sy-vline 
WA_FKKINVDOC_I_GFN_STR-CABLLBLEITMDISCOUNTKEY sy-vline 
WA_FKKINVDOC_I_GFN_STR-CABLLBLEITMDISCOUNTVERSION sy-vline 
WA_FKKINVDOC_I_GFN_STR-DUMMY_INVDOC_I_INCL_EEW_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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