ABAP Select data from SAP table FOAP_S_RFBNUM10_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FOAP_S_RFBNUM10_ITEM 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 FOAP_S_RFBNUM10_ITEM. 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 FOAP_S_RFBNUM10_ITEM 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_FOAP_S_RFBNUM10_ITEM TYPE STANDARD TABLE OF FOAP_S_RFBNUM10_ITEM,
      WA_FOAP_S_RFBNUM10_ITEM TYPE FOAP_S_RFBNUM10_ITEM,
      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: <FOAP_S_RFBNUM10_ITEM> TYPE FOAP_S_RFBNUM10_ITEM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FOAP_S_RFBNUM10_ITEM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FOAP_S_RFBNUM10_ITEM
  INTO TABLE IT_FOAP_S_RFBNUM10_ITEM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FOAP_S_RFBNUM10_ITEM
*  INTO TABLE @DATA(IT_FOAP_S_RFBNUM10_ITEM2).
*--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_FOAP_S_RFBNUM10_ITEM INDEX 1 INTO DATA(WA_FOAP_S_RFBNUM10_ITEM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FOAP_S_RFBNUM10_ITEM ASSIGNING <FOAP_S_RFBNUM10_ITEM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FOAP_S_RFBNUM10_ITEM>-BUKRS = 1.
<FOAP_S_RFBNUM10_ITEM>-KOART = 1.
<FOAP_S_RFBNUM10_ITEM>-KONTO = 1.
<FOAP_S_RFBNUM10_ITEM>-XBLNR = 1.
<FOAP_S_RFBNUM10_ITEM>-BELNR = 1.

ENDLOOP.

LOOP AT IT_FOAP_S_RFBNUM10_ITEM INTO WA_FOAP_S_RFBNUM10_ITEM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FOAP_S_RFBNUM10_ITEM-GJAHR, sy-vline,
  WA_FOAP_S_RFBNUM10_ITEM-BUZEI, sy-vline,
  WA_FOAP_S_RFBNUM10_ITEM-CPUDT, sy-vline,
  WA_FOAP_S_RFBNUM10_ITEM-BLDAT, sy-vline,
  WA_FOAP_S_RFBNUM10_ITEM-BSCHL, sy-vline,
  WA_FOAP_S_RFBNUM10_ITEM-UMSKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FOAP_S_RFBNUM10_ITEM 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_FOAP_S_RFBNUM10_ITEM 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_FOAP_S_RFBNUM10_ITEM INTO WA_FOAP_S_RFBNUM10_ITEM.


*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_FOAP_S_RFBNUM10_ITEM-KONTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOAP_S_RFBNUM10_ITEM-KONTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FOAP_S_RFBNUM10_ITEM-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOAP_S_RFBNUM10_ITEM-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FOAP_S_RFBNUM10_ITEM-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOAP_S_RFBNUM10_ITEM-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field WAEHR
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_FOAP_S_RFBNUM10_ITEM-WAEHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOAP_S_RFBNUM10_ITEM-WAEHR.
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_FOAP_S_RFBNUM10_ITEM_STR, 
BUKRS TYPE STRING,
KOART TYPE STRING,
KONTO TYPE STRING,
XBLNR TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
CPUDT TYPE STRING,
BLDAT TYPE STRING,
BSCHL TYPE STRING,
UMSKZ TYPE STRING,
WAEHR TYPE STRING,
WAERS TYPE STRING,
USNAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FOAP_S_RFBNUM10_ITEM_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_FOAP_S_RFBNUM10_ITEM_STR-BUKRS sy-vline 
WA_FOAP_S_RFBNUM10_ITEM_STR-KOART sy-vline 
WA_FOAP_S_RFBNUM10_ITEM_STR-KONTO sy-vline 
WA_FOAP_S_RFBNUM10_ITEM_STR-XBLNR sy-vline 
WA_FOAP_S_RFBNUM10_ITEM_STR-BELNR sy-vline 
WA_FOAP_S_RFBNUM10_ITEM_STR-GJAHR sy-vline 
WA_FOAP_S_RFBNUM10_ITEM_STR-BUZEI sy-vline 
WA_FOAP_S_RFBNUM10_ITEM_STR-CPUDT sy-vline 
WA_FOAP_S_RFBNUM10_ITEM_STR-BLDAT sy-vline 
WA_FOAP_S_RFBNUM10_ITEM_STR-BSCHL sy-vline 
WA_FOAP_S_RFBNUM10_ITEM_STR-UMSKZ sy-vline 
WA_FOAP_S_RFBNUM10_ITEM_STR-WAEHR sy-vline 
WA_FOAP_S_RFBNUM10_ITEM_STR-WAERS sy-vline 
WA_FOAP_S_RFBNUM10_ITEM_STR-USNAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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