ABAP Select data from SAP table DFKKRP_GFN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DFKKRP_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 DFKKRP_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 DFKKRP_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_DFKKRP_GFN TYPE STANDARD TABLE OF DFKKRP_GFN,
      WA_DFKKRP_GFN TYPE DFKKRP_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: <DFKKRP_GFN> TYPE DFKKRP_GFN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKRP_GFN
*  INTO TABLE @DATA(IT_DFKKRP_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_DFKKRP_GFN INDEX 1 INTO DATA(WA_DFKKRP_GFN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKRP_GFN>-CARETURNLOT = 1.
<DFKKRP_GFN>-CAITEMNUMBERINRETURNLOT = 1.
<DFKKRP_GFN>-CAFIRSTSELECTIONCATEGORY = 1.
<DFKKRP_GFN>-CAFIRSTSELECTIONSHORTVALUE = 1.
<DFKKRP_GFN>-CARETURNAMOUNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKRP_GFN-CARETURNAMOUNTINLOCALCURRENCY, sy-vline,
  WA_DFKKRP_GFN-CAINPUTAMOUNTOFRETURNINTC, sy-vline,
  WA_DFKKRP_GFN-CACHARGEAMOUNTFROMBANK1, sy-vline,
  WA_DFKKRP_GFN-CACHARGEAMOUNTFROMBANK2, sy-vline,
  WA_DFKKRP_GFN-CAFIRSTRETURNCHARGEAMOUNT, sy-vline,
  WA_DFKKRP_GFN-CASECONDRETURNCHARGEAMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKRP_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_DFKKRP_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_DFKKRP_GFN INTO WA_DFKKRP_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 CARETURNBANKCLEARINGACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKRP_GFN-CARETURNBANKCLEARINGACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKRP_GFN-CARETURNBANKCLEARINGACCOUNT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field LOGICALSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKRP_GFN-LOGICALSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKRP_GFN-LOGICALSYSTEM.
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_DFKKRP_GFN_STR, 
CARETURNLOT TYPE STRING,
CAITEMNUMBERINRETURNLOT TYPE STRING,
CAFIRSTSELECTIONCATEGORY TYPE STRING,
CAFIRSTSELECTIONSHORTVALUE TYPE STRING,
CARETURNAMOUNT TYPE STRING,
CARETURNAMOUNTINLOCALCURRENCY TYPE STRING,
CAINPUTAMOUNTOFRETURNINTC TYPE STRING,
CACHARGEAMOUNTFROMBANK1 TYPE STRING,
CACHARGEAMOUNTFROMBANK2 TYPE STRING,
CAFIRSTRETURNCHARGEAMOUNT TYPE STRING,
CASECONDRETURNCHARGEAMOUNT TYPE STRING,
CATAXAMOUNTOFBANKCHARGE1 TYPE STRING,
CATAXAMOUNTOFBANKCHARGE2 TYPE STRING,
CATAXAMOUNTFORRETURNCHARGE1 TYPE STRING,
CATAXAMOUNTFORRETURNCHARGE2 TYPE STRING,
TAXCODEFORFIRSTBANKCHARGE TYPE STRING,
TAXCODEFORSECONDBANKCHARGE TYPE STRING,
TAXCODEFORFIRSTRETURNCHARGE TYPE STRING,
TAXCODEFORSECONDRETURNCHARGE TYPE STRING,
CARECONCILIATIONKEY TYPE STRING,
CARETURNBANKCLEARINGACCOUNT TYPE STRING,
COMPANYCODE TYPE STRING,
BUSINESSAREA TYPE STRING,
PROFITCENTER TYPE STRING,
CADOCUMENTTYPE TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
FOREIGNCURRENCY TYPE STRING,
CAEXCHANGERATE TYPE STRING,
CAPOSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
VALUEDATE TYPE STRING,
CAISSEPARATELINEITEMINGL TYPE STRING,
CARETURNREASON TYPE STRING,
CARETURNREASONOFHOUSEBANK TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
CAPAYMENTDOCUMENT TYPE STRING,
CARETURNDOCUMENTNUMBER TYPE STRING,
CARECEIVABLEDOCUMENT TYPE STRING,
CANOTETOPAYEEINRETURN TYPE STRING,
CABANKINGCOUNTRYOFBUSPART TYPE STRING,
CABANKNUMBEROFBUSINESSPARTNER TYPE STRING,
CABANKACCOUNTNUMBEROFBUSPART TYPE STRING,
IBAN TYPE STRING,
HOUSEBANK TYPE STRING,
HOUSEBANKACCOUNT TYPE STRING,
CANUMBEROFRETURNEDCHEQUE TYPE STRING,
CHARGESOVERTOLLIMITAREACCEPTED TYPE STRING,
CAPOSTINGTYPEOFRETURN TYPE STRING,
CAENHANCEDRETURNPROCGISACTIVE TYPE STRING,
CARETURNISTOBECLARIFIED TYPE STRING,
CACLARIFICATIONDOCUMENT TYPE STRING,
CACLARIFICATIONACCOUNT TYPE STRING,
CACLARIFICATIONDOCPOSTINGDATE TYPE STRING,
CARETURNITEMISINVALID TYPE STRING,
BANKSTATEMENTSHORTID TYPE STRING,
BANKSTATEMENTITEM TYPE STRING,
LOGICALSYSTEM TYPE STRING,
SWIFTCODE TYPE STRING,
CASHMANAGEMENTLINKTYPE TYPE STRING,
CASHMANAGEMENTLINK TYPE STRING,
TAXCOUNTRY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKRP_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_DFKKRP_GFN_STR-CARETURNLOT sy-vline 
WA_DFKKRP_GFN_STR-CAITEMNUMBERINRETURNLOT sy-vline 
WA_DFKKRP_GFN_STR-CAFIRSTSELECTIONCATEGORY sy-vline 
WA_DFKKRP_GFN_STR-CAFIRSTSELECTIONSHORTVALUE sy-vline 
WA_DFKKRP_GFN_STR-CARETURNAMOUNT sy-vline 
WA_DFKKRP_GFN_STR-CARETURNAMOUNTINLOCALCURRENCY sy-vline 
WA_DFKKRP_GFN_STR-CAINPUTAMOUNTOFRETURNINTC sy-vline 
WA_DFKKRP_GFN_STR-CACHARGEAMOUNTFROMBANK1 sy-vline 
WA_DFKKRP_GFN_STR-CACHARGEAMOUNTFROMBANK2 sy-vline 
WA_DFKKRP_GFN_STR-CAFIRSTRETURNCHARGEAMOUNT sy-vline 
WA_DFKKRP_GFN_STR-CASECONDRETURNCHARGEAMOUNT sy-vline 
WA_DFKKRP_GFN_STR-CATAXAMOUNTOFBANKCHARGE1 sy-vline 
WA_DFKKRP_GFN_STR-CATAXAMOUNTOFBANKCHARGE2 sy-vline 
WA_DFKKRP_GFN_STR-CATAXAMOUNTFORRETURNCHARGE1 sy-vline 
WA_DFKKRP_GFN_STR-CATAXAMOUNTFORRETURNCHARGE2 sy-vline 
WA_DFKKRP_GFN_STR-TAXCODEFORFIRSTBANKCHARGE sy-vline 
WA_DFKKRP_GFN_STR-TAXCODEFORSECONDBANKCHARGE sy-vline 
WA_DFKKRP_GFN_STR-TAXCODEFORFIRSTRETURNCHARGE sy-vline 
WA_DFKKRP_GFN_STR-TAXCODEFORSECONDRETURNCHARGE sy-vline 
WA_DFKKRP_GFN_STR-CARECONCILIATIONKEY sy-vline 
WA_DFKKRP_GFN_STR-CARETURNBANKCLEARINGACCOUNT sy-vline 
WA_DFKKRP_GFN_STR-COMPANYCODE sy-vline 
WA_DFKKRP_GFN_STR-BUSINESSAREA sy-vline 
WA_DFKKRP_GFN_STR-PROFITCENTER sy-vline 
WA_DFKKRP_GFN_STR-CADOCUMENTTYPE sy-vline 
WA_DFKKRP_GFN_STR-TRANSACTIONCURRENCY sy-vline 
WA_DFKKRP_GFN_STR-FOREIGNCURRENCY sy-vline 
WA_DFKKRP_GFN_STR-CAEXCHANGERATE sy-vline 
WA_DFKKRP_GFN_STR-CAPOSTINGDATE sy-vline 
WA_DFKKRP_GFN_STR-DOCUMENTDATE sy-vline 
WA_DFKKRP_GFN_STR-VALUEDATE sy-vline 
WA_DFKKRP_GFN_STR-CAISSEPARATELINEITEMINGL sy-vline 
WA_DFKKRP_GFN_STR-CARETURNREASON sy-vline 
WA_DFKKRP_GFN_STR-CARETURNREASONOFHOUSEBANK sy-vline 
WA_DFKKRP_GFN_STR-LASTCHANGEDBYUSER sy-vline 
WA_DFKKRP_GFN_STR-LASTCHANGEDATE sy-vline 
WA_DFKKRP_GFN_STR-LASTCHANGETIME sy-vline 
WA_DFKKRP_GFN_STR-CAPAYMENTDOCUMENT sy-vline 
WA_DFKKRP_GFN_STR-CARETURNDOCUMENTNUMBER sy-vline 
WA_DFKKRP_GFN_STR-CARECEIVABLEDOCUMENT sy-vline 
WA_DFKKRP_GFN_STR-CANOTETOPAYEEINRETURN sy-vline 
WA_DFKKRP_GFN_STR-CABANKINGCOUNTRYOFBUSPART sy-vline 
WA_DFKKRP_GFN_STR-CABANKNUMBEROFBUSINESSPARTNER sy-vline 
WA_DFKKRP_GFN_STR-CABANKACCOUNTNUMBEROFBUSPART sy-vline 
WA_DFKKRP_GFN_STR-IBAN sy-vline 
WA_DFKKRP_GFN_STR-HOUSEBANK sy-vline 
WA_DFKKRP_GFN_STR-HOUSEBANKACCOUNT sy-vline 
WA_DFKKRP_GFN_STR-CANUMBEROFRETURNEDCHEQUE sy-vline 
WA_DFKKRP_GFN_STR-CHARGESOVERTOLLIMITAREACCEPTED sy-vline 
WA_DFKKRP_GFN_STR-CAPOSTINGTYPEOFRETURN sy-vline 
WA_DFKKRP_GFN_STR-CAENHANCEDRETURNPROCGISACTIVE sy-vline 
WA_DFKKRP_GFN_STR-CARETURNISTOBECLARIFIED sy-vline 
WA_DFKKRP_GFN_STR-CACLARIFICATIONDOCUMENT sy-vline 
WA_DFKKRP_GFN_STR-CACLARIFICATIONACCOUNT sy-vline 
WA_DFKKRP_GFN_STR-CACLARIFICATIONDOCPOSTINGDATE sy-vline 
WA_DFKKRP_GFN_STR-CARETURNITEMISINVALID sy-vline 
WA_DFKKRP_GFN_STR-BANKSTATEMENTSHORTID sy-vline 
WA_DFKKRP_GFN_STR-BANKSTATEMENTITEM sy-vline 
WA_DFKKRP_GFN_STR-LOGICALSYSTEM sy-vline 
WA_DFKKRP_GFN_STR-SWIFTCODE sy-vline 
WA_DFKKRP_GFN_STR-CASHMANAGEMENTLINKTYPE sy-vline 
WA_DFKKRP_GFN_STR-CASHMANAGEMENTLINK sy-vline 
WA_DFKKRP_GFN_STR-TAXCOUNTRY sy-vline      INTO ld_text SEPARATED BY SPACE.

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