ABAP Select data from SAP table BFKKRP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BFKKRP 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. 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 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 TYPE STANDARD TABLE OF BFKKRP,
      WA_BFKKRP TYPE BFKKRP,
      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> TYPE BFKKRP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BFKKRP
*  INTO TABLE @DATA(IT_BFKKRP2).
*--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 INDEX 1 INTO DATA(WA_BFKKRP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BFKKRP>-STYPE = 1.
<BFKKRP>-TBNAM = 1.
<BFKKRP>-SELT1 = 1.
<BFKKRP>-SELW1 = 1.
<BFKKRP>-BETRR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BFKKRP-BETRH, sy-vline,
  WA_BFKKRP-BTRB1, sy-vline,
  WA_BFKKRP-BTRB2, sy-vline,
  WA_BFKKRP-BTRV1, sy-vline,
  WA_BFKKRP-BTRV2, sy-vline,
  WA_BFKKRP-STBB1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BFKKRP 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 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 INTO WA_BFKKRP.


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

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

*Conversion exit ALPHA, internal->external for field KUKEY_LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BFKKRP-KUKEY_LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BFKKRP-KUKEY_LOGSYS.
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_BFKKRP_STR, 
STYPE TYPE STRING,
TBNAM TYPE STRING,
SELT1 TYPE STRING,
SELW1 TYPE STRING,
BETRR TYPE STRING,
BETRH TYPE STRING,
BTRB1 TYPE STRING,
BTRB2 TYPE STRING,
BTRV1 TYPE STRING,
BTRV2 TYPE STRING,
STBB1 TYPE STRING,
STBB2 TYPE STRING,
STBV1 TYPE STRING,
STBV2 TYPE STRING,
SKZB1 TYPE STRING,
SKZB2 TYPE STRING,
SKZV1 TYPE STRING,
SKZV2 TYPE STRING,
RLSKO TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
BLART TYPE STRING,
WAERS TYPE STRING,
KURSF TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
VALUT TYPE STRING,
XEIPH TYPE STRING,
RLGRD TYPE STRING,
RLHBK TYPE STRING,
TXTVW TYPE STRING,
BANKL TYPE STRING,
BANKK TYPE STRING,
BANKN TYPE STRING,
IBAN TYPE STRING,
CHECF TYPE STRING,
XACCEPTCHARGES TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
RLMOD TYPE STRING,
XERWR TYPE STRING,
PRCTR TYPE STRING,
KUKEY TYPE STRING,
ESNUM TYPE STRING,
KUKEY_LOGSYS TYPE STRING,
SWIFT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BFKKRP_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_STR-STYPE sy-vline 
WA_BFKKRP_STR-TBNAM sy-vline 
WA_BFKKRP_STR-SELT1 sy-vline 
WA_BFKKRP_STR-SELW1 sy-vline 
WA_BFKKRP_STR-BETRR sy-vline 
WA_BFKKRP_STR-BETRH sy-vline 
WA_BFKKRP_STR-BTRB1 sy-vline 
WA_BFKKRP_STR-BTRB2 sy-vline 
WA_BFKKRP_STR-BTRV1 sy-vline 
WA_BFKKRP_STR-BTRV2 sy-vline 
WA_BFKKRP_STR-STBB1 sy-vline 
WA_BFKKRP_STR-STBB2 sy-vline 
WA_BFKKRP_STR-STBV1 sy-vline 
WA_BFKKRP_STR-STBV2 sy-vline 
WA_BFKKRP_STR-SKZB1 sy-vline 
WA_BFKKRP_STR-SKZB2 sy-vline 
WA_BFKKRP_STR-SKZV1 sy-vline 
WA_BFKKRP_STR-SKZV2 sy-vline 
WA_BFKKRP_STR-RLSKO sy-vline 
WA_BFKKRP_STR-BUKRS sy-vline 
WA_BFKKRP_STR-GSBER sy-vline 
WA_BFKKRP_STR-BLART sy-vline 
WA_BFKKRP_STR-WAERS sy-vline 
WA_BFKKRP_STR-KURSF sy-vline 
WA_BFKKRP_STR-BUDAT sy-vline 
WA_BFKKRP_STR-BLDAT sy-vline 
WA_BFKKRP_STR-VALUT sy-vline 
WA_BFKKRP_STR-XEIPH sy-vline 
WA_BFKKRP_STR-RLGRD sy-vline 
WA_BFKKRP_STR-RLHBK sy-vline 
WA_BFKKRP_STR-TXTVW sy-vline 
WA_BFKKRP_STR-BANKL sy-vline 
WA_BFKKRP_STR-BANKK sy-vline 
WA_BFKKRP_STR-BANKN sy-vline 
WA_BFKKRP_STR-IBAN sy-vline 
WA_BFKKRP_STR-CHECF sy-vline 
WA_BFKKRP_STR-XACCEPTCHARGES sy-vline 
WA_BFKKRP_STR-HBKID sy-vline 
WA_BFKKRP_STR-HKTID sy-vline 
WA_BFKKRP_STR-RLMOD sy-vline 
WA_BFKKRP_STR-XERWR sy-vline 
WA_BFKKRP_STR-PRCTR sy-vline 
WA_BFKKRP_STR-KUKEY sy-vline 
WA_BFKKRP_STR-ESNUM sy-vline 
WA_BFKKRP_STR-KUKEY_LOGSYS sy-vline 
WA_BFKKRP_STR-SWIFT sy-vline      INTO ld_text SEPARATED BY SPACE.

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