ABAP Select data from SAP table RFEDITI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFEDITI
*  INTO TABLE @DATA(IT_RFEDITI2).
*--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_RFEDITI INDEX 1 INTO DATA(WA_RFEDITI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFEDITI>-MERKA = 1.
<RFEDITI>-WAERA = 1.
<RFEDITI>-WERTA = 1.
<RFEDITI>-SKALA = 1.
<RFEDITI>-SKALP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFEDITI-SKALK, sy-vline,
  WA_RFEDITI-OWAER, sy-vline,
  WA_RFEDITI-AWAER, sy-vline,
  WA_RFEDITI-UMRDT, sy-vline,
  WA_RFEDITI-KURST, sy-vline,
  WA_RFEDITI-OFFPO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFEDITI 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_RFEDITI 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_RFEDITI INTO WA_RFEDITI.


*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_RFEDITI_STR, 
MERKA TYPE STRING,
WAERA TYPE STRING,
WERTA TYPE STRING,
SKALA TYPE STRING,
SKALP TYPE STRING,
SKALK TYPE STRING,
OWAER TYPE STRING,
AWAER TYPE STRING,
UMRDT TYPE STRING,
KURST TYPE STRING,
OFFPO TYPE STRING,
AUGPO TYPE STRING,
VORPO TYPE STRING,
SONPO TYPE STRING,
LIFPO TYPE STRING,
KUNPO TYPE STRING,
VARNR TYPE STRING,
EDOWN TYPE STRING,
EDAWT TYPE STRING,
EDAWB TYPE STRING,
VARNR_ALV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFEDITI_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_RFEDITI_STR-MERKA sy-vline 
WA_RFEDITI_STR-WAERA sy-vline 
WA_RFEDITI_STR-WERTA sy-vline 
WA_RFEDITI_STR-SKALA sy-vline 
WA_RFEDITI_STR-SKALP sy-vline 
WA_RFEDITI_STR-SKALK sy-vline 
WA_RFEDITI_STR-OWAER sy-vline 
WA_RFEDITI_STR-AWAER sy-vline 
WA_RFEDITI_STR-UMRDT sy-vline 
WA_RFEDITI_STR-KURST sy-vline 
WA_RFEDITI_STR-OFFPO sy-vline 
WA_RFEDITI_STR-AUGPO sy-vline 
WA_RFEDITI_STR-VORPO sy-vline 
WA_RFEDITI_STR-SONPO sy-vline 
WA_RFEDITI_STR-LIFPO sy-vline 
WA_RFEDITI_STR-KUNPO sy-vline 
WA_RFEDITI_STR-VARNR sy-vline 
WA_RFEDITI_STR-EDOWN sy-vline 
WA_RFEDITI_STR-EDAWT sy-vline 
WA_RFEDITI_STR-EDAWB sy-vline 
WA_RFEDITI_STR-VARNR_ALV sy-vline      INTO ld_text SEPARATED BY SPACE.

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