ABAP Select data from SAP table RFKP6 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RFKP6 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 RFKP6. 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 RFKP6 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_RFKP6 TYPE STANDARD TABLE OF RFKP6,
      WA_RFKP6 TYPE RFKP6,
      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: <RFKP6> TYPE RFKP6.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RFKP6.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RFKP6
  INTO TABLE IT_RFKP6.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFKP6
*  INTO TABLE @DATA(IT_RFKP62).
*--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_RFKP6 INDEX 1 INTO DATA(WA_RFKP62).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RFKP6 ASSIGNING <RFKP6>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFKP6>-OPBEL = 1.
<RFKP6>-OPUPW = 1.
<RFKP6>-OPUPK = 1.
<RFKP6>-OPUPZ = 1.
<RFKP6>-BUKRS = 1.

ENDLOOP.

LOOP AT IT_RFKP6 INTO WA_RFKP6.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFKP6-WAERS, sy-vline,
  WA_RFKP6-ORI_BETRW, sy-vline,
  WA_RFKP6-GPART, sy-vline,
  WA_RFKP6-VKONT, sy-vline,
  WA_RFKP6-HVORG, sy-vline,
  WA_RFKP6-TVORG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFKP6 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_RFKP6 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_RFKP6 INTO WA_RFKP6.


*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_RFKP6-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKP6-OPBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKP6-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKP6-GPART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKP6-VKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKP6-VKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VTREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKP6-VTREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKP6-VTREF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_RFKP6-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKP6-KURSF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field XBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKP6-XBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKP6-XBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EMGPA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKP6-EMGPA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKP6-EMGPA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EMADR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKP6-EMADR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKP6-EMADR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BROKR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKP6-BROKR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKP6-BROKR.
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_RFKP6_STR, 
OPBEL TYPE STRING,
OPUPW TYPE STRING,
OPUPK TYPE STRING,
OPUPZ TYPE STRING,
BUKRS TYPE STRING,
WAERS TYPE STRING,
ORI_BETRW TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
SPART TYPE STRING,
VTREF TYPE STRING,
XAESP TYPE STRING,
XPYOR TYPE STRING,
XWHPO TYPE STRING,
WHGRP TYPE STRING,
STAKZ TYPE STRING,
C4EYP TYPE STRING,
C4EYE TYPE STRING,
HVTXT TYPE STRING,
TVTXT TYPE STRING,
SPZAH_LST TYPE STRING,
MANSP_LST TYPE STRING,
SPERZ_LST TYPE STRING,
CLRLO_LST TYPE STRING,
KURSF TYPE STRING,
PDTYP TYPE STRING,
ABWTP TYPE STRING,
XBLNR TYPE STRING,
AUGRS TYPE STRING,
FAEDN TYPE STRING,
FAEDS TYPE STRING,
STUDT TYPE STRING,
SPZAH TYPE STRING,
EMGPA TYPE STRING,
EMBVT TYPE STRING,
EMCRD TYPE STRING,
EMADR TYPE STRING,
BETRW TYPE STRING,
OPTXT TYPE STRING,
XMANL TYPE STRING,
MAHNV TYPE STRING,
MANSP TYPE STRING,
SPERZ TYPE STRING,
IKEY TYPE STRING,
PYMET TYPE STRING,
PYGRP TYPE STRING,
SKTPZ TYPE STRING,
CLRLO TYPE STRING,
SPZAH_TDATE TYPE STRING,
MANSP_TDATE TYPE STRING,
SPERZ_TDATE TYPE STRING,
CLRLO_TDATE TYPE STRING,
BROKR TYPE STRING,
EMMND TYPE STRING,
MNDID TYPE STRING,
TABIX TYPE STRING,
XREPL TYPE STRING,
OPSPZ TYPE STRING,
XMARK TYPE STRING,
DSTNR TYPE STRING,
ICON TYPE STRING,
ICON2 TYPE STRING,
PRZNT TYPE STRING,
ICON_LPAY TYPE STRING,
ICON_LDUN TYPE STRING,
ICON_LINT TYPE STRING,
ICON_LCLR TYPE STRING,
ICON_ESR TYPE STRING,
LICON TYPE STRING,
XNCHG_1124 TYPE STRING,
XNSPL_1124 TYPE STRING,
DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFKP6_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_RFKP6_STR-OPBEL sy-vline 
WA_RFKP6_STR-OPUPW sy-vline 
WA_RFKP6_STR-OPUPK sy-vline 
WA_RFKP6_STR-OPUPZ sy-vline 
WA_RFKP6_STR-BUKRS sy-vline 
WA_RFKP6_STR-WAERS sy-vline 
WA_RFKP6_STR-ORI_BETRW sy-vline 
WA_RFKP6_STR-GPART sy-vline 
WA_RFKP6_STR-VKONT sy-vline 
WA_RFKP6_STR-HVORG sy-vline 
WA_RFKP6_STR-TVORG sy-vline 
WA_RFKP6_STR-SPART sy-vline 
WA_RFKP6_STR-VTREF sy-vline 
WA_RFKP6_STR-XAESP sy-vline 
WA_RFKP6_STR-XPYOR sy-vline 
WA_RFKP6_STR-XWHPO sy-vline 
WA_RFKP6_STR-WHGRP sy-vline 
WA_RFKP6_STR-STAKZ sy-vline 
WA_RFKP6_STR-C4EYP sy-vline 
WA_RFKP6_STR-C4EYE sy-vline 
WA_RFKP6_STR-HVTXT sy-vline 
WA_RFKP6_STR-TVTXT sy-vline 
WA_RFKP6_STR-SPZAH_LST sy-vline 
WA_RFKP6_STR-MANSP_LST sy-vline 
WA_RFKP6_STR-SPERZ_LST sy-vline 
WA_RFKP6_STR-CLRLO_LST sy-vline 
WA_RFKP6_STR-KURSF sy-vline 
WA_RFKP6_STR-PDTYP sy-vline 
WA_RFKP6_STR-ABWTP sy-vline 
WA_RFKP6_STR-XBLNR sy-vline 
WA_RFKP6_STR-AUGRS sy-vline 
WA_RFKP6_STR-FAEDN sy-vline 
WA_RFKP6_STR-FAEDS sy-vline 
WA_RFKP6_STR-STUDT sy-vline 
WA_RFKP6_STR-SPZAH sy-vline 
WA_RFKP6_STR-EMGPA sy-vline 
WA_RFKP6_STR-EMBVT sy-vline 
WA_RFKP6_STR-EMCRD sy-vline 
WA_RFKP6_STR-EMADR sy-vline 
WA_RFKP6_STR-BETRW sy-vline 
WA_RFKP6_STR-OPTXT sy-vline 
WA_RFKP6_STR-XMANL sy-vline 
WA_RFKP6_STR-MAHNV sy-vline 
WA_RFKP6_STR-MANSP sy-vline 
WA_RFKP6_STR-SPERZ sy-vline 
WA_RFKP6_STR-IKEY sy-vline 
WA_RFKP6_STR-PYMET sy-vline 
WA_RFKP6_STR-PYGRP sy-vline 
WA_RFKP6_STR-SKTPZ sy-vline 
WA_RFKP6_STR-CLRLO sy-vline 
WA_RFKP6_STR-SPZAH_TDATE sy-vline 
WA_RFKP6_STR-MANSP_TDATE sy-vline 
WA_RFKP6_STR-SPERZ_TDATE sy-vline 
WA_RFKP6_STR-CLRLO_TDATE sy-vline 
WA_RFKP6_STR-BROKR sy-vline 
WA_RFKP6_STR-EMMND sy-vline 
WA_RFKP6_STR-MNDID sy-vline 
WA_RFKP6_STR-TABIX sy-vline 
WA_RFKP6_STR-XREPL sy-vline 
WA_RFKP6_STR-OPSPZ sy-vline 
WA_RFKP6_STR-XMARK sy-vline 
WA_RFKP6_STR-DSTNR sy-vline 
WA_RFKP6_STR-ICON sy-vline 
WA_RFKP6_STR-ICON2 sy-vline 
WA_RFKP6_STR-PRZNT sy-vline 
WA_RFKP6_STR-ICON_LPAY sy-vline 
WA_RFKP6_STR-ICON_LDUN sy-vline 
WA_RFKP6_STR-ICON_LINT sy-vline 
WA_RFKP6_STR-ICON_LCLR sy-vline 
WA_RFKP6_STR-ICON_ESR sy-vline 
WA_RFKP6_STR-LICON sy-vline 
WA_RFKP6_STR-XNCHG_1124 sy-vline 
WA_RFKP6_STR-XNSPL_1124 sy-vline 
WA_RFKP6_STR-DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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