ABAP Select data from SAP table APAREBPP_INVOICE_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP APAREBPP_INVOICE_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 APAREBPP_INVOICE_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 APAREBPP_INVOICE_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_APAREBPP_INVOICE_ITEM TYPE STANDARD TABLE OF APAREBPP_INVOICE_ITEM,
      WA_APAREBPP_INVOICE_ITEM TYPE APAREBPP_INVOICE_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: <APAREBPP_INVOICE_ITEM> TYPE APAREBPP_INVOICE_ITEM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM APAREBPP_INVOICE_ITEM
*  INTO TABLE @DATA(IT_APAREBPP_INVOICE_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_APAREBPP_INVOICE_ITEM INDEX 1 INTO DATA(WA_APAREBPP_INVOICE_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<APAREBPP_INVOICE_ITEM>-TABIX = 1.
<APAREBPP_INVOICE_ITEM>-INVID = 1.
<APAREBPP_INVOICE_ITEM>-INV_DATE = 1.
<APAREBPP_INVOICE_ITEM>-LINCT = 1.
<APAREBPP_INVOICE_ITEM>-STATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_APAREBPP_INVOICE_ITEM-DISPLAYSTATUS, sy-vline,
  WA_APAREBPP_INVOICE_ITEM-NON_PAYABLE, sy-vline,
  WA_APAREBPP_INVOICE_ITEM-NON_PARTIALPAY, sy-vline,
  WA_APAREBPP_INVOICE_ITEM-NON_STOPABLE, sy-vline,
  WA_APAREBPP_INVOICE_ITEM-PAYMENTGROUP, sy-vline,
  WA_APAREBPP_INVOICE_ITEM-CURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_APAREBPP_INVOICE_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_APAREBPP_INVOICE_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_APAREBPP_INVOICE_ITEM INTO WA_APAREBPP_INVOICE_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 KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_APAREBPP_INVOICE_ITEM-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_APAREBPP_INVOICE_ITEM-KUNNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_APAREBPP_INVOICE_ITEM-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_APAREBPP_INVOICE_ITEM-VBELN.
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_APAREBPP_INVOICE_ITEM_STR, 
TABIX TYPE STRING,
INVID TYPE STRING,
INV_DATE TYPE STRING,
LINCT TYPE STRING,
STATUS TYPE STRING,
DISPLAYSTATUS TYPE STRING,
NON_PAYABLE TYPE STRING,
NON_PARTIALPAY TYPE STRING,
NON_STOPABLE TYPE STRING,
PAYMENTGROUP TYPE STRING,
CURRENCY TYPE STRING,
AMOUNT TYPE STRING,
OPEN_AMOUNT TYPE STRING,
DISCOUNT TYPE STRING,
OPEN_AMOUNT_ORI TYPE STRING,
DISCOUNT_ORI TYPE STRING,
DUE_DATE TYPE STRING,
DISC_DATE TYPE STRING,
DISC_PERC TYPE STRING,
CASE_GUID_LOC TYPE STRING,
BUKRS TYPE STRING,
KOART TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
VERTN TYPE STRING,
VERTT TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
XBLNR TYPE STRING,
VBELN TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
DMBTR TYPE STRING,
WRBTR TYPE STRING,
WAERS TYPE STRING,
UMSKZ TYPE STRING,
UMSKS TYPE STRING,
BLART TYPE STRING,
BSCHL TYPE STRING,
SHKZG TYPE STRING,
XZAHL TYPE STRING,
ZFBDT TYPE STRING,
ZTERM TYPE STRING,
ZLSCH TYPE STRING,
BVTYP TYPE STRING,
CCINS TYPE STRING,
CCNUM TYPE STRING,
AUDAT TYPE STRING,
AUTIM TYPE STRING,
PYAMT TYPE STRING,
PYCUR TYPE STRING,
PAYS_PROV TYPE STRING,
PAYS_TRAN TYPE STRING,
XPDF TYPE STRING,
XXML TYPE STRING,
XHTML TYPE STRING,
XRAW TYPE STRING,
XIBU TYPE STRING,
XCUST1 TYPE STRING,
XCUST2 TYPE STRING,
XMULTARCH TYPE STRING,
XTIF TYPE STRING,
XOTHERTYPE TYPE STRING,
INVOICE_PATH TYPE STRING,
XURL TYPE STRING,
DOCT1 TYPE STRING,
PAYINFO TYPE STRING,
INVGROUP TYPE STRING,
EXTERNAL_INV_DESCR TYPE STRING,
IS_PARKED TYPE STRING,
PAYMENT_BLOCK TYPE STRING,
XREF1 TYPE STRING,
XREF2 TYPE STRING,
XREF3 TYPE STRING,
EVENTNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_APAREBPP_INVOICE_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_APAREBPP_INVOICE_ITEM_STR-TABIX sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-INVID sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-INV_DATE sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-LINCT sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-STATUS sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-DISPLAYSTATUS sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-NON_PAYABLE sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-NON_PARTIALPAY sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-NON_STOPABLE sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-PAYMENTGROUP sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-CURRENCY sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-AMOUNT sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-OPEN_AMOUNT sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-DISCOUNT sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-OPEN_AMOUNT_ORI sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-DISCOUNT_ORI sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-DUE_DATE sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-DISC_DATE sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-DISC_PERC sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-CASE_GUID_LOC sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-BUKRS sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-KOART sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-KUNNR sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-LIFNR sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-VERTN sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-VERTT sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-BELNR sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-GJAHR sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-BUZEI sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-XBLNR sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-VBELN sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-BLDAT sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-BUDAT sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-DMBTR sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-WRBTR sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-WAERS sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-UMSKZ sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-UMSKS sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-BLART sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-BSCHL sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-SHKZG sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-XZAHL sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-ZFBDT sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-ZTERM sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-ZLSCH sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-BVTYP sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-CCINS sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-CCNUM sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-AUDAT sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-AUTIM sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-PYAMT sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-PYCUR sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-PAYS_PROV sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-PAYS_TRAN sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-XPDF sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-XXML sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-XHTML sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-XRAW sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-XIBU sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-XCUST1 sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-XCUST2 sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-XMULTARCH sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-XTIF sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-XOTHERTYPE sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-INVOICE_PATH sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-XURL sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-DOCT1 sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-PAYINFO sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-INVGROUP sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-EXTERNAL_INV_DESCR sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-IS_PARKED sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-PAYMENT_BLOCK sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-XREF1 sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-XREF2 sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-XREF3 sy-vline 
WA_APAREBPP_INVOICE_ITEM_STR-EVENTNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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