ABAP Select data from SAP table FKKAR_REPDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKAR_REPDATA
*  INTO TABLE @DATA(IT_FKKAR_REPDATA2).
*--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_FKKAR_REPDATA INDEX 1 INTO DATA(WA_FKKAR_REPDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKAR_REPDATA>-REPCLS = 1.
<FKKAR_REPDATA>-MWSZKZ = 1.
<FKKAR_REPDATA>-NAME_ORG1 = 1.
<FKKAR_REPDATA>-STCDT = 1.
<FKKAR_REPDATA>-TAXNUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKAR_REPDATA-FITPR, sy-vline,
  WA_FKKAR_REPDATA-TRANSFER, sy-vline,
  WA_FKKAR_REPDATA-EXDFR, sy-vline,
  WA_FKKAR_REPDATA-EXDTO, sy-vline,
  WA_FKKAR_REPDATA-EXNUM, sy-vline,
  WA_FKKAR_REPDATA-EXRAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKAR_REPDATA 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_FKKAR_REPDATA 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_FKKAR_REPDATA INTO WA_FKKAR_REPDATA.


*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_FKKAR_REPDATA_STR, 
REPCLS TYPE STRING,
MWSZKZ TYPE STRING,
NAME_ORG1 TYPE STRING,
STCDT TYPE STRING,
TAXNUM TYPE STRING,
FITPR TYPE STRING,
TRANSFER TYPE STRING,
EXDFR TYPE STRING,
EXDTO TYPE STRING,
EXNUM TYPE STRING,
EXRAT TYPE STRING,
CANCEL TYPE STRING,
STODT TYPE STRING,
HERKF TYPE STRING,
FILLER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKAR_REPDATA_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_FKKAR_REPDATA_STR-REPCLS sy-vline 
WA_FKKAR_REPDATA_STR-MWSZKZ sy-vline 
WA_FKKAR_REPDATA_STR-NAME_ORG1 sy-vline 
WA_FKKAR_REPDATA_STR-STCDT sy-vline 
WA_FKKAR_REPDATA_STR-TAXNUM sy-vline 
WA_FKKAR_REPDATA_STR-FITPR sy-vline 
WA_FKKAR_REPDATA_STR-TRANSFER sy-vline 
WA_FKKAR_REPDATA_STR-EXDFR sy-vline 
WA_FKKAR_REPDATA_STR-EXDTO sy-vline 
WA_FKKAR_REPDATA_STR-EXNUM sy-vline 
WA_FKKAR_REPDATA_STR-EXRAT sy-vline 
WA_FKKAR_REPDATA_STR-CANCEL sy-vline 
WA_FKKAR_REPDATA_STR-STODT sy-vline 
WA_FKKAR_REPDATA_STR-HERKF sy-vline 
WA_FKKAR_REPDATA_STR-FILLER sy-vline      INTO ld_text SEPARATED BY SPACE.

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