ABAP Select data from SAP table RF10I into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RF10I 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 RF10I. 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 RF10I 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_RF10I TYPE STANDARD TABLE OF RF10I,
      WA_RF10I TYPE RF10I,
      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: <RF10I> TYPE RF10I.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RF10I.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RF10I
  INTO TABLE IT_RF10I.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RF10I
*  INTO TABLE @DATA(IT_RF10I2).
*--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_RF10I INDEX 1 INTO DATA(WA_RF10I2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RF10I ASSIGNING <RF10I>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RF10I>-RCOMP = 1.
<RF10I>-NAME1 = 1.
<RF10I>-RYEAR = 1.
<RF10I>-PERID = 1.
<RF10I>-RLDNR = 1.

ENDLOOP.

LOOP AT IT_RF10I INTO WA_RF10I.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RF10I-RVERS, sy-vline,
  WA_RF10I-RERTYP, sy-vline,
  WA_RF10I-FORMULAR, sy-vline,
  WA_RF10I-DWAER, sy-vline,
  WA_RF10I-LSEITE, sy-vline,
  WA_RF10I-DSEIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RF10I 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_RF10I 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_RF10I INTO WA_RF10I.


*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 RCOMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF10I-RCOMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF10I-RCOMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RF10I-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF10I-RYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF10I-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF10I-RLDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RVERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF10I-RVERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF10I-RVERS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RACCT_FROM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF10I-RACCT_FROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF10I-RACCT_FROM.
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_RF10I_STR, 
RCOMP TYPE STRING,
NAME1 TYPE STRING,
RYEAR TYPE STRING,
PERID TYPE STRING,
RLDNR TYPE STRING,
RVERS TYPE STRING,
RERTYP TYPE STRING,
FORMULAR TYPE STRING,
DWAER TYPE STRING,
LSEITE TYPE STRING,
DSEIT TYPE STRING,
DTEXT TYPE STRING,
DTEXT50 TYPE STRING,
RACCT_FROM TYPE STRING,
DWERT TYPE STRING,
DWERT_VAR TYPE STRING,
DWERT_VARH TYPE STRING,
DELTA TYPE STRING,
DSUM0 TYPE STRING,
DTXT1 TYPE STRING,
DTXT2 TYPE STRING,
DUEB2 TYPE STRING,
DUEB3 TYPE STRING,
DVAR2 TYPE STRING,
RPINA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RF10I_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_RF10I_STR-RCOMP sy-vline 
WA_RF10I_STR-NAME1 sy-vline 
WA_RF10I_STR-RYEAR sy-vline 
WA_RF10I_STR-PERID sy-vline 
WA_RF10I_STR-RLDNR sy-vline 
WA_RF10I_STR-RVERS sy-vline 
WA_RF10I_STR-RERTYP sy-vline 
WA_RF10I_STR-FORMULAR sy-vline 
WA_RF10I_STR-DWAER sy-vline 
WA_RF10I_STR-LSEITE sy-vline 
WA_RF10I_STR-DSEIT sy-vline 
WA_RF10I_STR-DTEXT sy-vline 
WA_RF10I_STR-DTEXT50 sy-vline 
WA_RF10I_STR-RACCT_FROM sy-vline 
WA_RF10I_STR-DWERT sy-vline 
WA_RF10I_STR-DWERT_VAR sy-vline 
WA_RF10I_STR-DWERT_VARH sy-vline 
WA_RF10I_STR-DELTA sy-vline 
WA_RF10I_STR-DSUM0 sy-vline 
WA_RF10I_STR-DTXT1 sy-vline 
WA_RF10I_STR-DTXT2 sy-vline 
WA_RF10I_STR-DUEB2 sy-vline 
WA_RF10I_STR-DUEB3 sy-vline 
WA_RF10I_STR-DVAR2 sy-vline 
WA_RF10I_STR-RPINA sy-vline      INTO ld_text SEPARATED BY SPACE.

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