ABAP Select data from SAP table FKKRDFINAM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKRDFINAM
*  INTO TABLE @DATA(IT_FKKRDFINAM2).
*--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_FKKRDFINAM INDEX 1 INTO DATA(WA_FKKRDFINAM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKRDFINAM>-FINRE = 1.
<FKKRDFINAM>-GPART_DIS = 1.
<FKKRDFINAM>-VKONT_DIS = 1.
<FKKRDFINAM>-VTREF_DIS = 1.
<FKKRDFINAM>-SUBAP_DIS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKRDFINAM-WAERS, sy-vline,
  WA_FKKRDFINAM-INDX, sy-vline,
  WA_FKKRDFINAM-BETRW, sy-vline,
  WA_FKKRDFINAM-XSHKZ, sy-vline,
  WA_FKKRDFINAM-HVORG, sy-vline,
  WA_FKKRDFINAM-TVORG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKRDFINAM 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_FKKRDFINAM 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_FKKRDFINAM INTO WA_FKKRDFINAM.


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

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

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

*Conversion exit ALPHA, internal->external for field VTREF_DIS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKRDFINAM-VTREF_DIS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKRDFINAM-VTREF_DIS.
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_FKKRDFINAM_STR, 
FINRE TYPE STRING,
GPART_DIS TYPE STRING,
VKONT_DIS TYPE STRING,
VTREF_DIS TYPE STRING,
SUBAP_DIS TYPE STRING,
WAERS TYPE STRING,
INDX TYPE STRING,
BETRW TYPE STRING,
XSHKZ TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
BUKRS TYPE STRING,
XNEGP TYPE STRING,
DISTYP TYPE STRING,
DISPER TYPE STRING,
PERSL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKRDFINAM_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_FKKRDFINAM_STR-FINRE sy-vline 
WA_FKKRDFINAM_STR-GPART_DIS sy-vline 
WA_FKKRDFINAM_STR-VKONT_DIS sy-vline 
WA_FKKRDFINAM_STR-VTREF_DIS sy-vline 
WA_FKKRDFINAM_STR-SUBAP_DIS sy-vline 
WA_FKKRDFINAM_STR-WAERS sy-vline 
WA_FKKRDFINAM_STR-INDX sy-vline 
WA_FKKRDFINAM_STR-BETRW sy-vline 
WA_FKKRDFINAM_STR-XSHKZ sy-vline 
WA_FKKRDFINAM_STR-HVORG sy-vline 
WA_FKKRDFINAM_STR-TVORG sy-vline 
WA_FKKRDFINAM_STR-BUKRS sy-vline 
WA_FKKRDFINAM_STR-XNEGP sy-vline 
WA_FKKRDFINAM_STR-DISTYP sy-vline 
WA_FKKRDFINAM_STR-DISPER sy-vline 
WA_FKKRDFINAM_STR-PERSL sy-vline      INTO ld_text SEPARATED BY SPACE.

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