ABAP Select data from SAP table BFKKRP_GFN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BFKKRP_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 BFKKRP_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 BFKKRP_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_BFKKRP_GFN TYPE STANDARD TABLE OF BFKKRP_GFN,
      WA_BFKKRP_GFN TYPE BFKKRP_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: <BFKKRP_GFN> TYPE BFKKRP_GFN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BFKKRP_GFN
*  INTO TABLE @DATA(IT_BFKKRP_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_BFKKRP_GFN INDEX 1 INTO DATA(WA_BFKKRP_GFN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BFKKRP_GFN>-CANOTETOPAYEEINPAYMENT = 1.
<BFKKRP_GFN>-CABANKINGCOUNTRYOFBUSPART = 1.
<BFKKRP_GFN>-CABANKNUMBEROFBUSINESSPARTNER = 1.
<BFKKRP_GFN>-CABANKACCOUNTNUMBEROFBUSPART = 1.
<BFKKRP_GFN>-IBAN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BFKKRP_GFN-CANUMBEROFRETURNEDCHEQUE, sy-vline,
  WA_BFKKRP_GFN-HOUSEBANK, sy-vline,
  WA_BFKKRP_GFN-HOUSEBANKACCOUNT, sy-vline,
  WA_BFKKRP_GFN-BANKSTATEMENTSHORTID, sy-vline,
  WA_BFKKRP_GFN-BANKSTATEMENTITEM, sy-vline,
  WA_BFKKRP_GFN-SWIFTCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BFKKRP_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_BFKKRP_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_BFKKRP_GFN INTO WA_BFKKRP_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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_BFKKRP_GFN_STR, 
CANOTETOPAYEEINPAYMENT TYPE STRING,
CABANKINGCOUNTRYOFBUSPART TYPE STRING,
CABANKNUMBEROFBUSINESSPARTNER TYPE STRING,
CABANKACCOUNTNUMBEROFBUSPART TYPE STRING,
IBAN TYPE STRING,
CANUMBEROFRETURNEDCHEQUE TYPE STRING,
HOUSEBANK TYPE STRING,
HOUSEBANKACCOUNT TYPE STRING,
BANKSTATEMENTSHORTID TYPE STRING,
BANKSTATEMENTITEM TYPE STRING,
SWIFTCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BFKKRP_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_BFKKRP_GFN_STR-CANOTETOPAYEEINPAYMENT sy-vline 
WA_BFKKRP_GFN_STR-CABANKINGCOUNTRYOFBUSPART sy-vline 
WA_BFKKRP_GFN_STR-CABANKNUMBEROFBUSINESSPARTNER sy-vline 
WA_BFKKRP_GFN_STR-CABANKACCOUNTNUMBEROFBUSPART sy-vline 
WA_BFKKRP_GFN_STR-IBAN sy-vline 
WA_BFKKRP_GFN_STR-CANUMBEROFRETURNEDCHEQUE sy-vline 
WA_BFKKRP_GFN_STR-HOUSEBANK sy-vline 
WA_BFKKRP_GFN_STR-HOUSEBANKACCOUNT sy-vline 
WA_BFKKRP_GFN_STR-BANKSTATEMENTSHORTID sy-vline 
WA_BFKKRP_GFN_STR-BANKSTATEMENTITEM sy-vline 
WA_BFKKRP_GFN_STR-SWIFTCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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