ABAP Select data from SAP table RF02L into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RF02L 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 RF02L. 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 RF02L 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_RF02L TYPE STANDARD TABLE OF RF02L,
      WA_RF02L TYPE RF02L,
      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: <RF02L> TYPE RF02L.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RF02L.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RF02L
  INTO TABLE IT_RF02L.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RF02L
*  INTO TABLE @DATA(IT_RF02L2).
*--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_RF02L INDEX 1 INTO DATA(WA_RF02L2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RF02L ASSIGNING <RF02L>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RF02L>-BUKLS = 1.
<RF02L>-D0105 = 1.
<RF02L>-D0110 = 1.
<RF02L>-D0120 = 1.
<RF02L>-D0210 = 1.

ENDLOOP.

LOOP AT IT_RF02L INTO WA_RF02L.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RF02L-D0220, sy-vline,
  WA_RF02L-DSOAT, sy-vline,
  WA_RF02L-DSOIN, sy-vline,
  WA_RF02L-DSOSA, sy-vline,
  WA_RF02L-DSOUT, sy-vline,
  WA_RF02L-HORDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RF02L 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_RF02L 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_RF02L INTO WA_RF02L.


*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 AC152, internal->external for field DSOSA
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_RF02L-DSOSA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF02L-DSOSA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field DSOUT
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_RF02L-DSOUT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF02L-DSOUT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field KLIMA
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_RF02L-KLIMA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF02L-KLIMA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field KLIME
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_RF02L-KLIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF02L-KLIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field KLIMG
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_RF02L-KLIMG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF02L-KLIMG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field KLIMK
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_RF02L-KLIMK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF02L-KLIMK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KNKLI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF02L-KNKLI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF02L-KNKLI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNDE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF02L-KUNDE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF02L-KUNDE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF02L-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF02L-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field OBLIG
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_RF02L-OBLIG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF02L-OBLIG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field SAUFT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_RF02L-SAUFT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF02L-SAUFT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field DELTA
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_RF02L-DELTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF02L-DELTA.
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_RF02L_STR, 
BUKLS TYPE STRING,
D0105 TYPE STRING,
D0110 TYPE STRING,
D0120 TYPE STRING,
D0210 TYPE STRING,
D0220 TYPE STRING,
DSOAT TYPE STRING,
DSOIN TYPE STRING,
DSOSA TYPE STRING,
DSOUT TYPE STRING,
HORDA TYPE STRING,
KKBER TYPE STRING,
KKBTX TYPE STRING,
KLIMA TYPE STRING,
KLIME TYPE STRING,
KLIMG TYPE STRING,
KLIMK TYPE STRING,
KLPRZ TYPE STRING,
KNKLI TYPE STRING,
KUNDE TYPE STRING,
KUNNR TYPE STRING,
OBLIG TYPE STRING,
TNEUA TYPE STRING,
TXT01 TYPE STRING,
T0105 TYPE STRING,
T0110 TYPE STRING,
T0120 TYPE STRING,
T0210 TYPE STRING,
T0220 TYPE STRING,
WAERA TYPE STRING,
WAERB TYPE STRING,
XNEUA TYPE STRING,
XTEXT TYPE STRING,
SAUFT TYPE STRING,
DELTA TYPE STRING,
HORDA_CM TYPE STRING,
XSAUFT TYPE STRING,
XSHOW TYPE STRING,
XDSO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RF02L_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_RF02L_STR-BUKLS sy-vline 
WA_RF02L_STR-D0105 sy-vline 
WA_RF02L_STR-D0110 sy-vline 
WA_RF02L_STR-D0120 sy-vline 
WA_RF02L_STR-D0210 sy-vline 
WA_RF02L_STR-D0220 sy-vline 
WA_RF02L_STR-DSOAT sy-vline 
WA_RF02L_STR-DSOIN sy-vline 
WA_RF02L_STR-DSOSA sy-vline 
WA_RF02L_STR-DSOUT sy-vline 
WA_RF02L_STR-HORDA sy-vline 
WA_RF02L_STR-KKBER sy-vline 
WA_RF02L_STR-KKBTX sy-vline 
WA_RF02L_STR-KLIMA sy-vline 
WA_RF02L_STR-KLIME sy-vline 
WA_RF02L_STR-KLIMG sy-vline 
WA_RF02L_STR-KLIMK sy-vline 
WA_RF02L_STR-KLPRZ sy-vline 
WA_RF02L_STR-KNKLI sy-vline 
WA_RF02L_STR-KUNDE sy-vline 
WA_RF02L_STR-KUNNR sy-vline 
WA_RF02L_STR-OBLIG sy-vline 
WA_RF02L_STR-TNEUA sy-vline 
WA_RF02L_STR-TXT01 sy-vline 
WA_RF02L_STR-T0105 sy-vline 
WA_RF02L_STR-T0110 sy-vline 
WA_RF02L_STR-T0120 sy-vline 
WA_RF02L_STR-T0210 sy-vline 
WA_RF02L_STR-T0220 sy-vline 
WA_RF02L_STR-WAERA sy-vline 
WA_RF02L_STR-WAERB sy-vline 
WA_RF02L_STR-XNEUA sy-vline 
WA_RF02L_STR-XTEXT sy-vline 
WA_RF02L_STR-SAUFT sy-vline 
WA_RF02L_STR-DELTA sy-vline 
WA_RF02L_STR-HORDA_CM sy-vline 
WA_RF02L_STR-XSAUFT sy-vline 
WA_RF02L_STR-XSHOW sy-vline 
WA_RF02L_STR-XDSO sy-vline      INTO ld_text SEPARATED BY SPACE.

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