ABAP Select data from SAP table GENEBPP_INVOICE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GENEBPP_INVOICE
*  INTO TABLE @DATA(IT_GENEBPP_INVOICE2).
*--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_GENEBPP_INVOICE INDEX 1 INTO DATA(WA_GENEBPP_INVOICE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GENEBPP_INVOICE>-XMARK = 1.
<GENEBPP_INVOICE>-INVID = 1.
<GENEBPP_INVOICE>-DUE_DATE = 1.
<GENEBPP_INVOICE>-ORI_DUE_DATE = 1.
<GENEBPP_INVOICE>-CURRENCY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GENEBPP_INVOICE-AMOUNT, sy-vline,
  WA_GENEBPP_INVOICE-OPENAMOUNT, sy-vline,
  WA_GENEBPP_INVOICE-NON_PAYABLE, sy-vline,
  WA_GENEBPP_INVOICE-STATUS, sy-vline,
  WA_GENEBPP_INVOICE-PAYMENTGROUP, sy-vline,
  WA_GENEBPP_INVOICE-DOCT1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GENEBPP_INVOICE 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_GENEBPP_INVOICE 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_GENEBPP_INVOICE INTO WA_GENEBPP_INVOICE.


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

*Conversion exit ALPHA, internal->external for field PPKEY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GENEBPP_INVOICE-PPKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GENEBPP_INVOICE-PPKEY.
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_GENEBPP_INVOICE_STR, 
XMARK TYPE STRING,
INVID TYPE STRING,
DUE_DATE TYPE STRING,
ORI_DUE_DATE TYPE STRING,
CURRENCY TYPE STRING,
AMOUNT TYPE STRING,
OPENAMOUNT TYPE STRING,
NON_PAYABLE TYPE STRING,
STATUS TYPE STRING,
PAYMENTGROUP TYPE STRING,
DOCT1 TYPE STRING,
PAYINFO TYPE STRING,
REFID TYPE STRING,
IS_DISPUTED TYPE STRING,
IS_DISPUTEABLE TYPE STRING,
LINCT TYPE STRING,
INVGROUP TYPE STRING,
INVCLASS TYPE STRING,
DISPLAYSTATUS TYPE STRING,
INV_DATE TYPE STRING,
NON_PARTIALPAY TYPE STRING,
NON_STOPABLE TYPE STRING,
CURRENCY_ORI TYPE STRING,
AMOUNT_ORI TYPE STRING,
OPENAMOUNT_ORI TYPE STRING,
DISCOUNT TYPE STRING,
DISC_DATE TYPE STRING,
DISC_PERC 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,
X_NEW_BILL TYPE STRING,
X_NEW_CONTACT TYPE STRING,
XBLNR TYPE STRING,
VBELN TYPE STRING,
XREF1 TYPE STRING,
XREF2 TYPE STRING,
XREF3 TYPE STRING,
PPKEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GENEBPP_INVOICE_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_GENEBPP_INVOICE_STR-XMARK sy-vline 
WA_GENEBPP_INVOICE_STR-INVID sy-vline 
WA_GENEBPP_INVOICE_STR-DUE_DATE sy-vline 
WA_GENEBPP_INVOICE_STR-ORI_DUE_DATE sy-vline 
WA_GENEBPP_INVOICE_STR-CURRENCY sy-vline 
WA_GENEBPP_INVOICE_STR-AMOUNT sy-vline 
WA_GENEBPP_INVOICE_STR-OPENAMOUNT sy-vline 
WA_GENEBPP_INVOICE_STR-NON_PAYABLE sy-vline 
WA_GENEBPP_INVOICE_STR-STATUS sy-vline 
WA_GENEBPP_INVOICE_STR-PAYMENTGROUP sy-vline 
WA_GENEBPP_INVOICE_STR-DOCT1 sy-vline 
WA_GENEBPP_INVOICE_STR-PAYINFO sy-vline 
WA_GENEBPP_INVOICE_STR-REFID sy-vline 
WA_GENEBPP_INVOICE_STR-IS_DISPUTED sy-vline 
WA_GENEBPP_INVOICE_STR-IS_DISPUTEABLE sy-vline 
WA_GENEBPP_INVOICE_STR-LINCT sy-vline 
WA_GENEBPP_INVOICE_STR-INVGROUP sy-vline 
WA_GENEBPP_INVOICE_STR-INVCLASS sy-vline 
WA_GENEBPP_INVOICE_STR-DISPLAYSTATUS sy-vline 
WA_GENEBPP_INVOICE_STR-INV_DATE sy-vline 
WA_GENEBPP_INVOICE_STR-NON_PARTIALPAY sy-vline 
WA_GENEBPP_INVOICE_STR-NON_STOPABLE sy-vline 
WA_GENEBPP_INVOICE_STR-CURRENCY_ORI sy-vline 
WA_GENEBPP_INVOICE_STR-AMOUNT_ORI sy-vline 
WA_GENEBPP_INVOICE_STR-OPENAMOUNT_ORI sy-vline 
WA_GENEBPP_INVOICE_STR-DISCOUNT sy-vline 
WA_GENEBPP_INVOICE_STR-DISC_DATE sy-vline 
WA_GENEBPP_INVOICE_STR-DISC_PERC sy-vline 
WA_GENEBPP_INVOICE_STR-XPDF sy-vline 
WA_GENEBPP_INVOICE_STR-XXML sy-vline 
WA_GENEBPP_INVOICE_STR-XHTML sy-vline 
WA_GENEBPP_INVOICE_STR-XRAW sy-vline 
WA_GENEBPP_INVOICE_STR-XIBU sy-vline 
WA_GENEBPP_INVOICE_STR-XCUST1 sy-vline 
WA_GENEBPP_INVOICE_STR-XCUST2 sy-vline 
WA_GENEBPP_INVOICE_STR-XMULTARCH sy-vline 
WA_GENEBPP_INVOICE_STR-XTIF sy-vline 
WA_GENEBPP_INVOICE_STR-XOTHERTYPE sy-vline 
WA_GENEBPP_INVOICE_STR-INVOICE_PATH sy-vline 
WA_GENEBPP_INVOICE_STR-XURL sy-vline 
WA_GENEBPP_INVOICE_STR-X_NEW_BILL sy-vline 
WA_GENEBPP_INVOICE_STR-X_NEW_CONTACT sy-vline 
WA_GENEBPP_INVOICE_STR-XBLNR sy-vline 
WA_GENEBPP_INVOICE_STR-VBELN sy-vline 
WA_GENEBPP_INVOICE_STR-XREF1 sy-vline 
WA_GENEBPP_INVOICE_STR-XREF2 sy-vline 
WA_GENEBPP_INVOICE_STR-XREF3 sy-vline 
WA_GENEBPP_INVOICE_STR-PPKEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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