ABAP Select data from SAP table FKKRACT_GFN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKKRACT_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 FKKRACT_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 FKKRACT_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_FKKRACT_GFN TYPE STANDARD TABLE OF FKKRACT_GFN,
      WA_FKKRACT_GFN TYPE FKKRACT_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: <FKKRACT_GFN> TYPE FKKRACT_GFN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKRACT_GFN
*  INTO TABLE @DATA(IT_FKKRACT_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_FKKRACT_GFN INDEX 1 INTO DATA(WA_FKKRACT_GFN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKRACT_GFN>-ISVALID = 1.
<FKKRACT_GFN>-BUSINESSPARTNER = 1.
<FKKRACT_GFN>-CONTRACTACCOUNT = 1.
<FKKRACT_GFN>-COMPANYCODE = 1.
<FKKRACT_GFN>-CARETURNREASON = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKRACT_GFN-CANUMBEROFRETSINOBSVNPERD, sy-vline,
  WA_FKKRACT_GFN-CACREDITWORTHINESS, sy-vline,
  WA_FKKRACT_GFN-CATOLERANCEGROUP, sy-vline,
  WA_FKKRACT_GFN-CABANKCHARGEISPASSEDONBP, sy-vline,
  WA_FKKRACT_GFN-CAGRADUATEDCHARGEISCALCULATED, sy-vline,
  WA_FKKRACT_GFN-CABANKDETAILSAREDELETED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKRACT_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_FKKRACT_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_FKKRACT_GFN INTO WA_FKKRACT_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 BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKRACT_GFN-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKRACT_GFN-BUSINESSPARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONTRACTACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKRACT_GFN-CONTRACTACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKRACT_GFN-CONTRACTACCOUNT.
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_FKKRACT_GFN_STR, 
ISVALID TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
COMPANYCODE TYPE STRING,
CARETURNREASON TYPE STRING,
CANUMBEROFRETSINOBSVNPERD TYPE STRING,
CACREDITWORTHINESS TYPE STRING,
CATOLERANCEGROUP TYPE STRING,
CABANKCHARGEISPASSEDONBP TYPE STRING,
CAGRADUATEDCHARGEISCALCULATED TYPE STRING,
CABANKDETAILSAREDELETED TYPE STRING,
CADEFERRALDAYS TYPE STRING,
CADEFERRALDATE TYPE STRING,
CADUNNINGLOCKREASONFORLINEITEM TYPE STRING,
CADURATIONINDAYSOFDUNLOCKITEM TYPE STRING,
CAPAYMENTLOCKREASONFORLINEITEM TYPE STRING,
CADURATIONINDAYSOFINCGPAYTLOCK TYPE STRING,
CADUNNINGLOCKRSNFORCONTRACCT TYPE STRING,
CADURNINDAYSOFCONTRACCTDUNLOCK TYPE STRING,
CAINCGPAYLOCKRSNFORCONTRACCT TYPE STRING,
CADURNOFCONTRACCTINCGPAYTLOCK TYPE STRING,
CAOUTGPAYLOCKRSNFORCONTRACCT TYPE STRING,
CADURNOFCONTRACCTOUTGPAYTLOCK TYPE STRING,
CAPAYMENTMETHODFORINCGPAYMENT TYPE STRING,
CACHARGEISPOSTEDSTATISTICALLY TYPE STRING,
CAEVTFORCHGGMDISACTIVATED TYPE STRING,
CASPECIALISTWILLBEINFORMED TYPE STRING,
CAEVTFORCRTNCORRESPNCISACTVTD TYPE STRING,
CAINCGPAYTMETHINACCTISDELTD TYPE STRING,
CAOUTGPAYTMETHINACCTISDELTD TYPE STRING,
CAINCGPAYTLOCKREASONINCONTRACT TYPE STRING,
CADURNOFINCGPAYTLOCKINCONTRACT TYPE STRING,
CAOUTGPAYTLOCKREASONINCONTRACT TYPE STRING,
CADURNOFOUTGPAYTLOCKINCONTRACT TYPE STRING,
CADUNNINGLOCKREASONFORCONTRACT TYPE STRING,
CADURNOFDUNNINGLOCKINCONTRACT TYPE STRING,
CAPAYMENTMETHODINITEMISDELETED TYPE STRING,
CAPAYTMETHINITEMCANBECHANGED TYPE STRING,
CHECKIFBANKDETAILSHAVECHANGED TYPE STRING,
CAALTERNATIVERETURNREASON TYPE STRING,
CAWRITETOINFOCTNISACTIVATED TYPE STRING,
CAPREPAIDREFILLISTOBEREVERED TYPE STRING,
CACHRGSAREDEBITEDTOPREPAIDACCT TYPE STRING,
USAGEINSEPAMANDATEISTOBEDELTD TYPE STRING,
SEPAMANDATESTATUS TYPE STRING,
DURNOFLOCKFORSEPAMANDATEINDAYS TYPE STRING,
CAREPAYMENTREQUESTISREVERSED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKRACT_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_FKKRACT_GFN_STR-ISVALID sy-vline 
WA_FKKRACT_GFN_STR-BUSINESSPARTNER sy-vline 
WA_FKKRACT_GFN_STR-CONTRACTACCOUNT sy-vline 
WA_FKKRACT_GFN_STR-COMPANYCODE sy-vline 
WA_FKKRACT_GFN_STR-CARETURNREASON sy-vline 
WA_FKKRACT_GFN_STR-CANUMBEROFRETSINOBSVNPERD sy-vline 
WA_FKKRACT_GFN_STR-CACREDITWORTHINESS sy-vline 
WA_FKKRACT_GFN_STR-CATOLERANCEGROUP sy-vline 
WA_FKKRACT_GFN_STR-CABANKCHARGEISPASSEDONBP sy-vline 
WA_FKKRACT_GFN_STR-CAGRADUATEDCHARGEISCALCULATED sy-vline 
WA_FKKRACT_GFN_STR-CABANKDETAILSAREDELETED sy-vline 
WA_FKKRACT_GFN_STR-CADEFERRALDAYS sy-vline 
WA_FKKRACT_GFN_STR-CADEFERRALDATE sy-vline 
WA_FKKRACT_GFN_STR-CADUNNINGLOCKREASONFORLINEITEM sy-vline 
WA_FKKRACT_GFN_STR-CADURATIONINDAYSOFDUNLOCKITEM sy-vline 
WA_FKKRACT_GFN_STR-CAPAYMENTLOCKREASONFORLINEITEM sy-vline 
WA_FKKRACT_GFN_STR-CADURATIONINDAYSOFINCGPAYTLOCK sy-vline 
WA_FKKRACT_GFN_STR-CADUNNINGLOCKRSNFORCONTRACCT sy-vline 
WA_FKKRACT_GFN_STR-CADURNINDAYSOFCONTRACCTDUNLOCK sy-vline 
WA_FKKRACT_GFN_STR-CAINCGPAYLOCKRSNFORCONTRACCT sy-vline 
WA_FKKRACT_GFN_STR-CADURNOFCONTRACCTINCGPAYTLOCK sy-vline 
WA_FKKRACT_GFN_STR-CAOUTGPAYLOCKRSNFORCONTRACCT sy-vline 
WA_FKKRACT_GFN_STR-CADURNOFCONTRACCTOUTGPAYTLOCK sy-vline 
WA_FKKRACT_GFN_STR-CAPAYMENTMETHODFORINCGPAYMENT sy-vline 
WA_FKKRACT_GFN_STR-CACHARGEISPOSTEDSTATISTICALLY sy-vline 
WA_FKKRACT_GFN_STR-CAEVTFORCHGGMDISACTIVATED sy-vline 
WA_FKKRACT_GFN_STR-CASPECIALISTWILLBEINFORMED sy-vline 
WA_FKKRACT_GFN_STR-CAEVTFORCRTNCORRESPNCISACTVTD sy-vline 
WA_FKKRACT_GFN_STR-CAINCGPAYTMETHINACCTISDELTD sy-vline 
WA_FKKRACT_GFN_STR-CAOUTGPAYTMETHINACCTISDELTD sy-vline 
WA_FKKRACT_GFN_STR-CAINCGPAYTLOCKREASONINCONTRACT sy-vline 
WA_FKKRACT_GFN_STR-CADURNOFINCGPAYTLOCKINCONTRACT sy-vline 
WA_FKKRACT_GFN_STR-CAOUTGPAYTLOCKREASONINCONTRACT sy-vline 
WA_FKKRACT_GFN_STR-CADURNOFOUTGPAYTLOCKINCONTRACT sy-vline 
WA_FKKRACT_GFN_STR-CADUNNINGLOCKREASONFORCONTRACT sy-vline 
WA_FKKRACT_GFN_STR-CADURNOFDUNNINGLOCKINCONTRACT sy-vline 
WA_FKKRACT_GFN_STR-CAPAYMENTMETHODINITEMISDELETED sy-vline 
WA_FKKRACT_GFN_STR-CAPAYTMETHINITEMCANBECHANGED sy-vline 
WA_FKKRACT_GFN_STR-CHECKIFBANKDETAILSHAVECHANGED sy-vline 
WA_FKKRACT_GFN_STR-CAALTERNATIVERETURNREASON sy-vline 
WA_FKKRACT_GFN_STR-CAWRITETOINFOCTNISACTIVATED sy-vline 
WA_FKKRACT_GFN_STR-CAPREPAIDREFILLISTOBEREVERED sy-vline 
WA_FKKRACT_GFN_STR-CACHRGSAREDEBITEDTOPREPAIDACCT sy-vline 
WA_FKKRACT_GFN_STR-USAGEINSEPAMANDATEISTOBEDELTD sy-vline 
WA_FKKRACT_GFN_STR-SEPAMANDATESTATUS sy-vline 
WA_FKKRACT_GFN_STR-DURNOFLOCKFORSEPAMANDATEINDAYS sy-vline 
WA_FKKRACT_GFN_STR-CAREPAYMENTREQUESTISREVERSED sy-vline      INTO ld_text SEPARATED BY SPACE.

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