ABAP Select data from SAP table RFKKFAH_FKKOP_DIA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFKKFAH_FKKOP_DIA
*  INTO TABLE @DATA(IT_RFKKFAH_FKKOP_DIA2).
*--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_RFKKFAH_FKKOP_DIA INDEX 1 INTO DATA(WA_RFKKFAH_FKKOP_DIA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFKKFAH_FKKOP_DIA>-MANDT = 1.
<RFKKFAH_FKKOP_DIA>-OPBEL = 1.
<RFKKFAH_FKKOP_DIA>-OPUPW = 1.
<RFKKFAH_FKKOP_DIA>-OPUPK = 1.
<RFKKFAH_FKKOP_DIA>-OPUPF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFKKFAH_FKKOP_DIA-LAUFD, sy-vline,
  WA_RFKKFAH_FKKOP_DIA-LAUFI, sy-vline,
  WA_RFKKFAH_FKKOP_DIA-AKTYP, sy-vline,
  WA_RFKKFAH_FKKOP_DIA-FACTC, sy-vline,
  WA_RFKKFAH_FKKOP_DIA-FASTA, sy-vline,
  WA_RFKKFAH_FKKOP_DIA-FAPRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFKKFAH_FKKOP_DIA 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_RFKKFAH_FKKOP_DIA 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_RFKKFAH_FKKOP_DIA INTO WA_RFKKFAH_FKKOP_DIA.


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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field ASBLG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKKFAH_FKKOP_DIA-ASBLG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKKFAH_FKKOP_DIA-ASBLG.
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_RFKKFAH_FKKOP_DIA_STR, 
MANDT TYPE STRING,
OPBEL TYPE STRING,
OPUPW TYPE STRING,
OPUPK TYPE STRING,
OPUPF TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
AKTYP TYPE STRING,
FACTC TYPE STRING,
FASTA TYPE STRING,
FAPRP TYPE STRING,
FAPAP TYPE STRING,
BUKRS TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
VTREF TYPE STRING,
SUBAP TYPE STRING,
BETRW TYPE STRING,
WAERS TYPE STRING,
BETRZ TYPE STRING,
WRAMT TYPE STRING,
RVAMT TYPE STRING,
RTAMT TYPE STRING,
BETRW_POST TYPE STRING,
BETRP_POST TYPE STRING,
BETRZ_POST TYPE STRING,
WRAMT_POST TYPE STRING,
RVAMT_POST TYPE STRING,
RPAMT_POST TYPE STRING,
RTAMT_POST TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
OPBELP TYPE STRING,
REASN_ANS TYPE STRING,
FRSTA TYPE STRING,
XIGUID TYPE STRING,
FDTYP TYPE STRING,
GJAHR TYPE STRING,
GSBER TYPE STRING,
HKONT TYPE STRING,
MWSKZ TYPE STRING,
FAEDN TYPE STRING,
BETRH TYPE STRING,
AUGBL TYPE STRING,
AUGDT TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
SPART TYPE STRING,
MWSKO TYPE STRING,
MWVKO TYPE STRING,
SBETW TYPE STRING,
SBETH TYPE STRING,
SEGMENT TYPE STRING,
ASBLG TYPE STRING,
TEXT1 TYPE STRING,
TEXT2 TYPE STRING,
TEXT3 TYPE STRING,
TEXT4 TYPE STRING,
TEXT5 TYPE STRING,
ICON_FASTA TYPE STRING,
TEXT_FASTA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFKKFAH_FKKOP_DIA_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_RFKKFAH_FKKOP_DIA_STR-MANDT sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-OPBEL sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-OPUPW sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-OPUPK sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-OPUPF sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-LAUFD sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-LAUFI sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-AKTYP sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-FACTC sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-FASTA sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-FAPRP sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-FAPAP sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-BUKRS sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-GPART sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-VKONT sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-VTREF sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-SUBAP sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-BETRW sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-WAERS sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-BETRZ sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-WRAMT sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-RVAMT sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-RTAMT sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-BETRW_POST sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-BETRP_POST sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-BETRZ_POST sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-WRAMT_POST sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-RVAMT_POST sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-RPAMT_POST sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-RTAMT_POST sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-ERNAM sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-ERDAT sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-ERTIM sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-OPBELP sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-REASN_ANS sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-FRSTA sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-XIGUID sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-FDTYP sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-GJAHR sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-GSBER sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-HKONT sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-MWSKZ sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-FAEDN sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-BETRH sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-AUGBL sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-AUGDT sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-HVORG sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-TVORG sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-SPART sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-MWSKO sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-MWVKO sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-SBETW sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-SBETH sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-SEGMENT sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-ASBLG sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-TEXT1 sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-TEXT2 sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-TEXT3 sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-TEXT4 sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-TEXT5 sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-ICON_FASTA sy-vline 
WA_RFKKFAH_FKKOP_DIA_STR-TEXT_FASTA sy-vline      INTO ld_text SEPARATED BY SPACE.

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