ABAP Select data from SAP table ARFI 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 ARFI 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 ARFI. 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 ARFI 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_ARFI TYPE STANDARD TABLE OF ARFI,
      WA_ARFI TYPE ARFI,
      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: <ARFI> TYPE ARFI.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ARFI
*  INTO TABLE @DATA(IT_ARFI2).
*--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_ARFI INDEX 1 INTO DATA(WA_ARFI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ARFI>-MATKL = 1.
<ARFI>-MATNR = 1.
<ARFI>-VRKME = 1.
<ARFI>-VRKPE = 1.
<ARFI>-VUMZA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ARFI-VUMNE, sy-vline,
  WA_ARFI-MEINS, sy-vline,
  WA_ARFI-MAKTX, sy-vline,
  WA_ARFI-ATTYP, sy-vline,
  WA_ARFI-SATNR, sy-vline,
  WA_ARFI-PMATA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ARFI 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_ARFI 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_ARFI INTO WA_ARFI.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ARFI-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ARFI-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ARFI-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ARFI-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ARFI-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ARFI-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field SATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ARFI-SATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ARFI-SATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field PMATA
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ARFI-PMATA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ARFI-PMATA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EAN11, internal->external for field EAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_ARFI-EAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ARFI-EAN11.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field SMATN
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ARFI-SMATN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ARFI-SMATN.
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_ARFI_STR, 
MATKL TYPE STRING,
MATNR TYPE STRING,
VRKME TYPE STRING,
VRKPE TYPE STRING,
VUMZA TYPE STRING,
VUMNE TYPE STRING,
MEINS TYPE STRING,
MAKTX TYPE STRING,
ATTYP TYPE STRING,
SATNR TYPE STRING,
PMATA TYPE STRING,
EAN11 TYPE STRING,
FAMNR TYPE STRING,
GRP01 TYPE STRING,
FMTYP TYPE STRING,
SMATN TYPE STRING,
FCHAL TYPE STRING,
FHIDE TYPE STRING,
MANDT TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
WERKS TYPE STRING,
BGINT TYPE STRING,
PLTYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ARFI_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_ARFI_STR-MATKL sy-vline 
WA_ARFI_STR-MATNR sy-vline 
WA_ARFI_STR-VRKME sy-vline 
WA_ARFI_STR-VRKPE sy-vline 
WA_ARFI_STR-VUMZA sy-vline 
WA_ARFI_STR-VUMNE sy-vline 
WA_ARFI_STR-MEINS sy-vline 
WA_ARFI_STR-MAKTX sy-vline 
WA_ARFI_STR-ATTYP sy-vline 
WA_ARFI_STR-SATNR sy-vline 
WA_ARFI_STR-PMATA sy-vline 
WA_ARFI_STR-EAN11 sy-vline 
WA_ARFI_STR-FAMNR sy-vline 
WA_ARFI_STR-GRP01 sy-vline 
WA_ARFI_STR-FMTYP sy-vline 
WA_ARFI_STR-SMATN sy-vline 
WA_ARFI_STR-FCHAL sy-vline 
WA_ARFI_STR-FHIDE sy-vline 
WA_ARFI_STR-MANDT sy-vline 
WA_ARFI_STR-VKORG sy-vline 
WA_ARFI_STR-VTWEG sy-vline 
WA_ARFI_STR-WERKS sy-vline 
WA_ARFI_STR-BGINT sy-vline 
WA_ARFI_STR-PLTYP sy-vline      INTO ld_text SEPARATED BY SPACE.

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