ABAP Select data from SAP table FKKSUMKONT_GFN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKKSUMKONT_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 FKKSUMKONT_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 FKKSUMKONT_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_FKKSUMKONT_GFN TYPE STANDARD TABLE OF FKKSUMKONT_GFN,
      WA_FKKSUMKONT_GFN TYPE FKKSUMKONT_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: <FKKSUMKONT_GFN> TYPE FKKSUMKONT_GFN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKSUMKONT_GFN
*  INTO TABLE @DATA(IT_FKKSUMKONT_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_FKKSUMKONT_GFN INDEX 1 INTO DATA(WA_FKKSUMKONT_GFN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKSUMKONT_GFN>-COSTCENTER = 1.
<FKKSUMKONT_GFN>-PROFITCENTER = 1.
<FKKSUMKONT_GFN>-ORDERID = 1.
<FKKSUMKONT_GFN>-SALESORDER = 1.
<FKKSUMKONT_GFN>-SALESORDERITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKSUMKONT_GFN-SCHEDULELINE, sy-vline,
  WA_FKKSUMKONT_GFN-WBSELEMENTINTERNALID, sy-vline,
  WA_FKKSUMKONT_GFN-VALUEDATE, sy-vline,
  WA_FKKSUMKONT_GFN-BUSINESSAREAWASCHANGED, sy-vline,
  WA_FKKSUMKONT_GFN-SEGMENTWASCHANGED, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_FKKSUMKONT_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_FKKSUMKONT_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_FKKSUMKONT_GFN INTO WA_FKKSUMKONT_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 COSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKSUMKONT_GFN-COSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKSUMKONT_GFN-COSTCENTER.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ABPSP, internal->external for field WBSELEMENTINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_FKKSUMKONT_GFN-WBSELEMENTINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKSUMKONT_GFN-WBSELEMENTINTERNALID.
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_FKKSUMKONT_GFN_STR, 
COSTCENTER TYPE STRING,
PROFITCENTER TYPE STRING,
ORDERID TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
SCHEDULELINE TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
VALUEDATE TYPE STRING,
BUSINESSAREAWASCHANGED TYPE STRING,
SEGMENTWASCHANGED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKSUMKONT_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_FKKSUMKONT_GFN_STR-COSTCENTER sy-vline 
WA_FKKSUMKONT_GFN_STR-PROFITCENTER sy-vline 
WA_FKKSUMKONT_GFN_STR-ORDERID sy-vline 
WA_FKKSUMKONT_GFN_STR-SALESORDER sy-vline 
WA_FKKSUMKONT_GFN_STR-SALESORDERITEM sy-vline 
WA_FKKSUMKONT_GFN_STR-SCHEDULELINE sy-vline 
WA_FKKSUMKONT_GFN_STR-WBSELEMENTINTERNALID sy-vline 
WA_FKKSUMKONT_GFN_STR-VALUEDATE sy-vline 
WA_FKKSUMKONT_GFN_STR-BUSINESSAREAWASCHANGED sy-vline 
WA_FKKSUMKONT_GFN_STR-SEGMENTWASCHANGED sy-vline      INTO ld_text SEPARATED BY SPACE.

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