ABAP Select data from SAP table RFXPO into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RFXPO 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 RFXPO. 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 RFXPO 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_RFXPO TYPE STANDARD TABLE OF RFXPO,
      WA_RFXPO TYPE RFXPO,
      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: <RFXPO> TYPE RFXPO.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFXPO
*  INTO TABLE @DATA(IT_RFXPO2).
*--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_RFXPO INDEX 1 INTO DATA(WA_RFXPO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFXPO>-AZEI1 = 1.
<RFXPO>-BISSL = 1.
<RFXPO>-BUKRS = 1.
<RFXPO>-FIRST = 1.
<RFXPO>-IDNTB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFXPO-IDNTK, sy-vline,
  WA_RFXPO-KKBER, sy-vline,
  WA_RFXPO-KOART, sy-vline,
  WA_RFXPO-KONTO, sy-vline,
  WA_RFXPO-KTEXT, sy-vline,
  WA_RFXPO-LTEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFXPO 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_RFXPO 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_RFXPO INTO WA_RFXPO.


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

*Conversion exit ALPHA, internal->external for field VONKN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFXPO-VONKN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFXPO-VONKN.
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_RFXPO_STR, 
AZEI1 TYPE STRING,
BISSL TYPE STRING,
BUKRS TYPE STRING,
FIRST TYPE STRING,
IDNTB TYPE STRING,
IDNTK TYPE STRING,
KKBER TYPE STRING,
KOART TYPE STRING,
KONTO TYPE STRING,
KTEXT TYPE STRING,
LTEXT TYPE STRING,
SRTFO TYPE STRING,
SRVAR TYPE STRING,
STREP TYPE STRING,
STRSB TYPE STRING,
STRTD TYPE STRING,
STRTK TYPE STRING,
STRTS TYPE STRING,
SUVAR TYPE STRING,
TEXT2 TYPE STRING,
TOTAL TYPE STRING,
USSEL TYPE STRING,
VARAK TYPE STRING,
VARNR TYPE STRING,
VONKN TYPE STRING,
VONSL TYPE STRING,
VRBEZ TYPE STRING,
WAERS TYPE STRING,
XAWAP TYPE STRING,
XAWOP TYPE STRING,
XAWUM TYPE STRING,
XDESC TYPE STRING,
XDKZS TYPE STRING,
XFILK TYPE STRING,
XINIT TYPE STRING,
XMDEB TYPE STRING,
XMKRD TYPE STRING,
XPOS1 TYPE STRING,
XSFSW TYPE STRING,
XSTRG TYPE STRING,
XSUCH TYPE STRING,
XSUMA TYPE STRING,
XUND TYPE STRING,
XZENK TYPE STRING,
XZUSA TYPE STRING,
XAWPP TYPE STRING,
XAWMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFXPO_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_RFXPO_STR-AZEI1 sy-vline 
WA_RFXPO_STR-BISSL sy-vline 
WA_RFXPO_STR-BUKRS sy-vline 
WA_RFXPO_STR-FIRST sy-vline 
WA_RFXPO_STR-IDNTB sy-vline 
WA_RFXPO_STR-IDNTK sy-vline 
WA_RFXPO_STR-KKBER sy-vline 
WA_RFXPO_STR-KOART sy-vline 
WA_RFXPO_STR-KONTO sy-vline 
WA_RFXPO_STR-KTEXT sy-vline 
WA_RFXPO_STR-LTEXT sy-vline 
WA_RFXPO_STR-SRTFO sy-vline 
WA_RFXPO_STR-SRVAR sy-vline 
WA_RFXPO_STR-STREP sy-vline 
WA_RFXPO_STR-STRSB sy-vline 
WA_RFXPO_STR-STRTD sy-vline 
WA_RFXPO_STR-STRTK sy-vline 
WA_RFXPO_STR-STRTS sy-vline 
WA_RFXPO_STR-SUVAR sy-vline 
WA_RFXPO_STR-TEXT2 sy-vline 
WA_RFXPO_STR-TOTAL sy-vline 
WA_RFXPO_STR-USSEL sy-vline 
WA_RFXPO_STR-VARAK sy-vline 
WA_RFXPO_STR-VARNR sy-vline 
WA_RFXPO_STR-VONKN sy-vline 
WA_RFXPO_STR-VONSL sy-vline 
WA_RFXPO_STR-VRBEZ sy-vline 
WA_RFXPO_STR-WAERS sy-vline 
WA_RFXPO_STR-XAWAP sy-vline 
WA_RFXPO_STR-XAWOP sy-vline 
WA_RFXPO_STR-XAWUM sy-vline 
WA_RFXPO_STR-XDESC sy-vline 
WA_RFXPO_STR-XDKZS sy-vline 
WA_RFXPO_STR-XFILK sy-vline 
WA_RFXPO_STR-XINIT sy-vline 
WA_RFXPO_STR-XMDEB sy-vline 
WA_RFXPO_STR-XMKRD sy-vline 
WA_RFXPO_STR-XPOS1 sy-vline 
WA_RFXPO_STR-XSFSW sy-vline 
WA_RFXPO_STR-XSTRG sy-vline 
WA_RFXPO_STR-XSUCH sy-vline 
WA_RFXPO_STR-XSUMA sy-vline 
WA_RFXPO_STR-XUND sy-vline 
WA_RFXPO_STR-XZENK sy-vline 
WA_RFXPO_STR-XZUSA sy-vline 
WA_RFXPO_STR-XAWPP sy-vline 
WA_RFXPO_STR-XAWMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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