ABAP Select data from SAP table BFKKOPK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BFKKOPK
*  INTO TABLE @DATA(IT_BFKKOPK2).
*--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_BFKKOPK INDEX 1 INTO DATA(WA_BFKKOPK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BFKKOPK>-STYPE = 1.
<BFKKOPK>-TBNAM = 1.
<BFKKOPK>-BUKRS = 1.
<BFKKOPK>-HKONT = 1.
<BFKKOPK>-GSBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BFKKOPK-PRCTR, sy-vline,
  WA_BFKKOPK-SEGMENT, sy-vline,
  WA_BFKKOPK-KOSTL, sy-vline,
  WA_BFKKOPK-KDAUF, sy-vline,
  WA_BFKKOPK-KDPOS, sy-vline,
  WA_BFKKOPK-KDEIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BFKKOPK 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_BFKKOPK 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_BFKKOPK INTO WA_BFKKOPK.


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

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

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

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

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

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

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

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

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_BFKKOPK-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BFKKOPK-FIPEX.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field BUDGETYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_BFKKOPK-BUDGETYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BFKKOPK-BUDGETYEAR.
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_BFKKOPK_STR, 
STYPE TYPE STRING,
TBNAM TYPE STRING,
BUKRS TYPE STRING,
HKONT TYPE STRING,
GSBER TYPE STRING,
PRCTR TYPE STRING,
SEGMENT TYPE STRING,
KOSTL TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KDEIN TYPE STRING,
PS_PSP_PNR TYPE STRING,
PAOBJNR TYPE STRING,
PASUBNR TYPE STRING,
FDLEV TYPE STRING,
VALUT TYPE STRING,
KURSF TYPE STRING,
BETRH TYPE STRING,
BETRW TYPE STRING,
BETR2 TYPE STRING,
BETR3 TYPE STRING,
STRKZ TYPE STRING,
MWSKZ TYPE STRING,
TXJCD TYPE STRING,
SBASH TYPE STRING,
SBASW TYPE STRING,
KTOSL TYPE STRING,
STPRZ TYPE STRING,
AUFNR TYPE STRING,
VBUND TYPE STRING,
KONTT TYPE STRING,
KONTL TYPE STRING,
KSCHL TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
SGTXT TYPE STRING,
HZUON TYPE STRING,
XEIPH TYPE STRING,
MWSZKZ TYPE STRING,
PS_PSP_PNR_TXT TYPE STRING,
PSGRP TYPE STRING,
LDGRP TYPE STRING,
ORIGFIKRS TYPE STRING,
FIPEX TYPE STRING,
FISTL TYPE STRING,
FONDS TYPE STRING,
FKBER TYPE STRING,
MEASURE TYPE STRING,
GRANT_NBR TYPE STRING,
BUDGETYEAR TYPE STRING,
BUDGET_PD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BFKKOPK_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_BFKKOPK_STR-STYPE sy-vline 
WA_BFKKOPK_STR-TBNAM sy-vline 
WA_BFKKOPK_STR-BUKRS sy-vline 
WA_BFKKOPK_STR-HKONT sy-vline 
WA_BFKKOPK_STR-GSBER sy-vline 
WA_BFKKOPK_STR-PRCTR sy-vline 
WA_BFKKOPK_STR-SEGMENT sy-vline 
WA_BFKKOPK_STR-KOSTL sy-vline 
WA_BFKKOPK_STR-KDAUF sy-vline 
WA_BFKKOPK_STR-KDPOS sy-vline 
WA_BFKKOPK_STR-KDEIN sy-vline 
WA_BFKKOPK_STR-PS_PSP_PNR sy-vline 
WA_BFKKOPK_STR-PAOBJNR sy-vline 
WA_BFKKOPK_STR-PASUBNR sy-vline 
WA_BFKKOPK_STR-FDLEV sy-vline 
WA_BFKKOPK_STR-VALUT sy-vline 
WA_BFKKOPK_STR-KURSF sy-vline 
WA_BFKKOPK_STR-BETRH sy-vline 
WA_BFKKOPK_STR-BETRW sy-vline 
WA_BFKKOPK_STR-BETR2 sy-vline 
WA_BFKKOPK_STR-BETR3 sy-vline 
WA_BFKKOPK_STR-STRKZ sy-vline 
WA_BFKKOPK_STR-MWSKZ sy-vline 
WA_BFKKOPK_STR-TXJCD sy-vline 
WA_BFKKOPK_STR-SBASH sy-vline 
WA_BFKKOPK_STR-SBASW sy-vline 
WA_BFKKOPK_STR-KTOSL sy-vline 
WA_BFKKOPK_STR-STPRZ sy-vline 
WA_BFKKOPK_STR-AUFNR sy-vline 
WA_BFKKOPK_STR-VBUND sy-vline 
WA_BFKKOPK_STR-KONTT sy-vline 
WA_BFKKOPK_STR-KONTL sy-vline 
WA_BFKKOPK_STR-KSCHL sy-vline 
WA_BFKKOPK_STR-MENGE sy-vline 
WA_BFKKOPK_STR-MEINS sy-vline 
WA_BFKKOPK_STR-SGTXT sy-vline 
WA_BFKKOPK_STR-HZUON sy-vline 
WA_BFKKOPK_STR-XEIPH sy-vline 
WA_BFKKOPK_STR-MWSZKZ sy-vline 
WA_BFKKOPK_STR-PS_PSP_PNR_TXT sy-vline 
WA_BFKKOPK_STR-PSGRP sy-vline 
WA_BFKKOPK_STR-LDGRP sy-vline 
WA_BFKKOPK_STR-ORIGFIKRS sy-vline 
WA_BFKKOPK_STR-FIPEX sy-vline 
WA_BFKKOPK_STR-FISTL sy-vline 
WA_BFKKOPK_STR-FONDS sy-vline 
WA_BFKKOPK_STR-FKBER sy-vline 
WA_BFKKOPK_STR-MEASURE sy-vline 
WA_BFKKOPK_STR-GRANT_NBR sy-vline 
WA_BFKKOPK_STR-BUDGETYEAR sy-vline 
WA_BFKKOPK_STR-BUDGET_PD sy-vline      INTO ld_text SEPARATED BY SPACE.

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