ABAP Select data from SAP table RFKA6 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP RFKA6 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 RFKA6. 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 RFKA6 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_RFKA6 TYPE STANDARD TABLE OF RFKA6,
      WA_RFKA6 TYPE RFKA6,
      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: <RFKA6> TYPE RFKA6.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RFKA6.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RFKA6
  INTO TABLE IT_RFKA6.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFKA6
*  INTO TABLE @DATA(IT_RFKA62).
*--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_RFKA6 INDEX 1 INTO DATA(WA_RFKA62).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RFKA6 ASSIGNING <RFKA6>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFKA6>-APPLK = 1.
<RFKA6>-BUKRSLOW = 1.
<RFKA6>-BUKRSHIGH = 1.
<RFKA6>-GPARTLOW = 1.
<RFKA6>-GPARTHIGH = 1.

ENDLOOP.

LOOP AT IT_RFKA6 INTO WA_RFKA6.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFKA6-VKONTLOW, sy-vline,
  WA_RFKA6-VKONTHIGH, sy-vline,
  WA_RFKA6-VTREFLOW, sy-vline,
  WA_RFKA6-VTREFHIGH, sy-vline,
  WA_RFKA6-SUBAP, sy-vline,
  WA_RFKA6-OPBEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFKA6 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_RFKA6 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_RFKA6 INTO WA_RFKA6.


*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 GPARTLOW
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKA6-GPARTLOW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKA6-GPARTLOW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GPARTHIGH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKA6-GPARTHIGH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKA6-GPARTHIGH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VKONTLOW
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKA6-VKONTLOW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKA6-VKONTLOW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VKONTHIGH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKA6-VKONTHIGH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKA6-VKONTHIGH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VTREFLOW
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKA6-VTREFLOW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKA6-VTREFLOW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VTREFHIGH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKA6-VTREFHIGH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKA6-VTREFHIGH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OPBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKA6-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKA6-OPBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OPBELLOW
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKA6-OPBELLOW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKA6-OPBELLOW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OPBELHIGH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKA6-OPBELHIGH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKA6-OPBELHIGH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INKGP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKA6-INKGP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKA6-INKGP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field XBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKA6-XBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKA6-XBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DRSCORELOW
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKA6-DRSCORELOW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKA6-DRSCORELOW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DRSCOREHIGH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKA6-DRSCOREHIGH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKA6-DRSCOREHIGH.
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_RFKA6_STR, 
APPLK TYPE STRING,
BUKRSLOW TYPE STRING,
BUKRSHIGH TYPE STRING,
GPARTLOW TYPE STRING,
GPARTHIGH TYPE STRING,
VKONTLOW TYPE STRING,
VKONTHIGH TYPE STRING,
VTREFLOW TYPE STRING,
VTREFHIGH TYPE STRING,
SUBAP TYPE STRING,
OPBEL TYPE STRING,
OPBELLOW TYPE STRING,
OPBELHIGH TYPE STRING,
INKGP TYPE STRING,
AGDATLOW TYPE STRING,
AGDATHIGH TYPE STRING,
AGGRD TYPE STRING,
BETRW TYPE STRING,
WAERS TYPE STRING,
BUKRS TYPE STRING,
XBLNR TYPE STRING,
AGSTA TYPE STRING,
XSOLD TYPE STRING,
XMARK TYPE STRING,
XAGAK TYPE STRING,
TXTGP TYPE STRING,
TXTVK TYPE STRING,
TXTIG TYPE STRING,
TXTAG TYPE STRING,
TXTAS TYPE STRING,
FAEDNLOW TYPE STRING,
FAEDNHIGH TYPE STRING,
TCHEADER TYPE STRING,
RUDAT TYPE STRING,
RUGRD TYPE STRING,
CICON TYPE STRING,
XNOSUB TYPE STRING,
COLLCASE_ID TYPE STRING,
DRSCORELOW TYPE STRING,
DRSCOREHIGH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFKA6_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_RFKA6_STR-APPLK sy-vline 
WA_RFKA6_STR-BUKRSLOW sy-vline 
WA_RFKA6_STR-BUKRSHIGH sy-vline 
WA_RFKA6_STR-GPARTLOW sy-vline 
WA_RFKA6_STR-GPARTHIGH sy-vline 
WA_RFKA6_STR-VKONTLOW sy-vline 
WA_RFKA6_STR-VKONTHIGH sy-vline 
WA_RFKA6_STR-VTREFLOW sy-vline 
WA_RFKA6_STR-VTREFHIGH sy-vline 
WA_RFKA6_STR-SUBAP sy-vline 
WA_RFKA6_STR-OPBEL sy-vline 
WA_RFKA6_STR-OPBELLOW sy-vline 
WA_RFKA6_STR-OPBELHIGH sy-vline 
WA_RFKA6_STR-INKGP sy-vline 
WA_RFKA6_STR-AGDATLOW sy-vline 
WA_RFKA6_STR-AGDATHIGH sy-vline 
WA_RFKA6_STR-AGGRD sy-vline 
WA_RFKA6_STR-BETRW sy-vline 
WA_RFKA6_STR-WAERS sy-vline 
WA_RFKA6_STR-BUKRS sy-vline 
WA_RFKA6_STR-XBLNR sy-vline 
WA_RFKA6_STR-AGSTA sy-vline 
WA_RFKA6_STR-XSOLD sy-vline 
WA_RFKA6_STR-XMARK sy-vline 
WA_RFKA6_STR-XAGAK sy-vline 
WA_RFKA6_STR-TXTGP sy-vline 
WA_RFKA6_STR-TXTVK sy-vline 
WA_RFKA6_STR-TXTIG sy-vline 
WA_RFKA6_STR-TXTAG sy-vline 
WA_RFKA6_STR-TXTAS sy-vline 
WA_RFKA6_STR-FAEDNLOW sy-vline 
WA_RFKA6_STR-FAEDNHIGH sy-vline 
WA_RFKA6_STR-TCHEADER sy-vline 
WA_RFKA6_STR-RUDAT sy-vline 
WA_RFKA6_STR-RUGRD sy-vline 
WA_RFKA6_STR-CICON sy-vline 
WA_RFKA6_STR-XNOSUB sy-vline 
WA_RFKA6_STR-COLLCASE_ID sy-vline 
WA_RFKA6_STR-DRSCORELOW sy-vline 
WA_RFKA6_STR-DRSCOREHIGH sy-vline      INTO ld_text SEPARATED BY SPACE.

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