ABAP Select data from SAP table FMFG_INVOICE_PDF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMFG_INVOICE_PDF
*  INTO TABLE @DATA(IT_FMFG_INVOICE_PDF2).
*--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_FMFG_INVOICE_PDF INDEX 1 INTO DATA(WA_FMFG_INVOICE_PDF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMFG_INVOICE_PDF>-BUKRS = 1.
<FMFG_INVOICE_PDF>-BELNR = 1.
<FMFG_INVOICE_PDF>-GJAHR = 1.
<FMFG_INVOICE_PDF>-KUNNR = 1.
<FMFG_INVOICE_PDF>-NAME1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMFG_INVOICE_PDF-NAME2, sy-vline,
  WA_FMFG_INVOICE_PDF-NAME3, sy-vline,
  WA_FMFG_INVOICE_PDF-NAME4, sy-vline,
  WA_FMFG_INVOICE_PDF-CITY, sy-vline,
  WA_FMFG_INVOICE_PDF-ZIP_CODE, sy-vline,
  WA_FMFG_INVOICE_PDF-REGION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMFG_INVOICE_PDF 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_FMFG_INVOICE_PDF 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_FMFG_INVOICE_PDF INTO WA_FMFG_INVOICE_PDF.


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

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

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

*Conversion exit ALPHA, internal->external for field BILL_DOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMFG_INVOICE_PDF-BILL_DOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMFG_INVOICE_PDF-BILL_DOC.
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_FMFG_INVOICE_PDF_STR, 
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
KUNNR TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
CITY TYPE STRING,
ZIP_CODE TYPE STRING,
REGION TYPE STRING,
STREET TYPE STRING,
PHONE TYPE STRING,
PO_BOX TYPE STRING,
AMOUNT TYPE STRING,
AMOUNT_LOC TYPE STRING,
OPEN_AMOUNT TYPE STRING,
OPEN_AMOUNT_LOC TYPE STRING,
CURRENCY TYPE STRING,
CURRENCY_LOC TYPE STRING,
DOC_TYPE TYPE STRING,
DOC_TEXT TYPE STRING,
ITEM_TEXT TYPE STRING,
REFERENCE TYPE STRING,
DOC_DATE TYPE STRING,
POSTING_DATE TYPE STRING,
BASE_DATE TYPE STRING,
PAYTERM TYPE STRING,
CASH_DISC_1 TYPE STRING,
CASH_DISC_2 TYPE STRING,
NET_DAYS TYPE STRING,
NET_DUE_DATE TYPE STRING,
CASH_DISC_PER1 TYPE STRING,
CASH_DISC_PER2 TYPE STRING,
SKFBT TYPE STRING,
WSKTO TYPE STRING,
POST_KEY TYPE STRING,
DUN_KEY TYPE STRING,
DUN_BLOCK TYPE STRING,
DUN_DATE TYPE STRING,
DUN_LEVEL TYPE STRING,
BILL_DOC TYPE STRING,
ACC_AT_CUST TYPE STRING,
USER_AT_CUST TYPE STRING,
CLERK_FAX TYPE STRING,
CLERK_PHONE TYPE STRING,
INTERNET_ADDR TYPE STRING,
CLERK_ID TYPE STRING,
CLEAR_NAME TYPE STRING,
SAP_NAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMFG_INVOICE_PDF_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_FMFG_INVOICE_PDF_STR-BUKRS sy-vline 
WA_FMFG_INVOICE_PDF_STR-BELNR sy-vline 
WA_FMFG_INVOICE_PDF_STR-GJAHR sy-vline 
WA_FMFG_INVOICE_PDF_STR-KUNNR sy-vline 
WA_FMFG_INVOICE_PDF_STR-NAME1 sy-vline 
WA_FMFG_INVOICE_PDF_STR-NAME2 sy-vline 
WA_FMFG_INVOICE_PDF_STR-NAME3 sy-vline 
WA_FMFG_INVOICE_PDF_STR-NAME4 sy-vline 
WA_FMFG_INVOICE_PDF_STR-CITY sy-vline 
WA_FMFG_INVOICE_PDF_STR-ZIP_CODE sy-vline 
WA_FMFG_INVOICE_PDF_STR-REGION sy-vline 
WA_FMFG_INVOICE_PDF_STR-STREET sy-vline 
WA_FMFG_INVOICE_PDF_STR-PHONE sy-vline 
WA_FMFG_INVOICE_PDF_STR-PO_BOX sy-vline 
WA_FMFG_INVOICE_PDF_STR-AMOUNT sy-vline 
WA_FMFG_INVOICE_PDF_STR-AMOUNT_LOC sy-vline 
WA_FMFG_INVOICE_PDF_STR-OPEN_AMOUNT sy-vline 
WA_FMFG_INVOICE_PDF_STR-OPEN_AMOUNT_LOC sy-vline 
WA_FMFG_INVOICE_PDF_STR-CURRENCY sy-vline 
WA_FMFG_INVOICE_PDF_STR-CURRENCY_LOC sy-vline 
WA_FMFG_INVOICE_PDF_STR-DOC_TYPE sy-vline 
WA_FMFG_INVOICE_PDF_STR-DOC_TEXT sy-vline 
WA_FMFG_INVOICE_PDF_STR-ITEM_TEXT sy-vline 
WA_FMFG_INVOICE_PDF_STR-REFERENCE sy-vline 
WA_FMFG_INVOICE_PDF_STR-DOC_DATE sy-vline 
WA_FMFG_INVOICE_PDF_STR-POSTING_DATE sy-vline 
WA_FMFG_INVOICE_PDF_STR-BASE_DATE sy-vline 
WA_FMFG_INVOICE_PDF_STR-PAYTERM sy-vline 
WA_FMFG_INVOICE_PDF_STR-CASH_DISC_1 sy-vline 
WA_FMFG_INVOICE_PDF_STR-CASH_DISC_2 sy-vline 
WA_FMFG_INVOICE_PDF_STR-NET_DAYS sy-vline 
WA_FMFG_INVOICE_PDF_STR-NET_DUE_DATE sy-vline 
WA_FMFG_INVOICE_PDF_STR-CASH_DISC_PER1 sy-vline 
WA_FMFG_INVOICE_PDF_STR-CASH_DISC_PER2 sy-vline 
WA_FMFG_INVOICE_PDF_STR-SKFBT sy-vline 
WA_FMFG_INVOICE_PDF_STR-WSKTO sy-vline 
WA_FMFG_INVOICE_PDF_STR-POST_KEY sy-vline 
WA_FMFG_INVOICE_PDF_STR-DUN_KEY sy-vline 
WA_FMFG_INVOICE_PDF_STR-DUN_BLOCK sy-vline 
WA_FMFG_INVOICE_PDF_STR-DUN_DATE sy-vline 
WA_FMFG_INVOICE_PDF_STR-DUN_LEVEL sy-vline 
WA_FMFG_INVOICE_PDF_STR-BILL_DOC sy-vline 
WA_FMFG_INVOICE_PDF_STR-ACC_AT_CUST sy-vline 
WA_FMFG_INVOICE_PDF_STR-USER_AT_CUST sy-vline 
WA_FMFG_INVOICE_PDF_STR-CLERK_FAX sy-vline 
WA_FMFG_INVOICE_PDF_STR-CLERK_PHONE sy-vline 
WA_FMFG_INVOICE_PDF_STR-INTERNET_ADDR sy-vline 
WA_FMFG_INVOICE_PDF_STR-CLERK_ID sy-vline 
WA_FMFG_INVOICE_PDF_STR-CLEAR_NAME sy-vline 
WA_FMFG_INVOICE_PDF_STR-SAP_NAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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