ABAP Select data from SAP table FDM_INVOICE_MEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FDM_INVOICE_MEM
*  INTO TABLE @DATA(IT_FDM_INVOICE_MEM2).
*--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_FDM_INVOICE_MEM INDEX 1 INTO DATA(WA_FDM_INVOICE_MEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FDM_INVOICE_MEM>-MANDT = 1.
<FDM_INVOICE_MEM>-COMP_CODE = 1.
<FDM_INVOICE_MEM>-INVOICE_NO = 1.
<FDM_INVOICE_MEM>-FISCAL_YEAR = 1.
<FDM_INVOICE_MEM>-DOC_ITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FDM_INVOICE_MEM-CUSTOMER, sy-vline,
  WA_FDM_INVOICE_MEM-BILLING_DOC, sy-vline,
  WA_FDM_INVOICE_MEM-POSTING_DATE, sy-vline,
  WA_FDM_INVOICE_MEM-INV_DATE, sy-vline,
  WA_FDM_INVOICE_MEM-DUE_DATE, sy-vline,
  WA_FDM_INVOICE_MEM-INV_DUE_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FDM_INVOICE_MEM 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_FDM_INVOICE_MEM 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_FDM_INVOICE_MEM INTO WA_FDM_INVOICE_MEM.


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

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

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

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

*Conversion exit ALPHA, internal->external for field COLL_DEBITOR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FDM_INVOICE_MEM-COLL_DEBITOR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FDM_INVOICE_MEM-COLL_DEBITOR.
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_FDM_INVOICE_MEM_STR, 
MANDT TYPE STRING,
COMP_CODE TYPE STRING,
INVOICE_NO TYPE STRING,
FISCAL_YEAR TYPE STRING,
DOC_ITEM TYPE STRING,
CUSTOMER TYPE STRING,
BILLING_DOC TYPE STRING,
POSTING_DATE TYPE STRING,
INV_DATE TYPE STRING,
DUE_DATE TYPE STRING,
INV_DUE_DATE TYPE STRING,
DISCOUNT_DATE TYPE STRING,
PAYMENT_DATE TYPE STRING,
DUNNING_DATE TYPE STRING,
CURRENCY TYPE STRING,
INVOICE_AMOUNT TYPE STRING,
PAID_AMOUNT TYPE STRING,
OPEN_AMOUNT TYPE STRING,
CREDITED_AMOUNT TYPE STRING,
DUNNING_AMOUNT TYPE STRING,
PAYMENT_ARRANGED TYPE STRING,
DISCOUNT_AMOUNT TYPE STRING,
COLL_DEBITOR TYPE STRING,
TIMESTAMP TYPE STRING,
OBJECT_KEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FDM_INVOICE_MEM_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_FDM_INVOICE_MEM_STR-MANDT sy-vline 
WA_FDM_INVOICE_MEM_STR-COMP_CODE sy-vline 
WA_FDM_INVOICE_MEM_STR-INVOICE_NO sy-vline 
WA_FDM_INVOICE_MEM_STR-FISCAL_YEAR sy-vline 
WA_FDM_INVOICE_MEM_STR-DOC_ITEM sy-vline 
WA_FDM_INVOICE_MEM_STR-CUSTOMER sy-vline 
WA_FDM_INVOICE_MEM_STR-BILLING_DOC sy-vline 
WA_FDM_INVOICE_MEM_STR-POSTING_DATE sy-vline 
WA_FDM_INVOICE_MEM_STR-INV_DATE sy-vline 
WA_FDM_INVOICE_MEM_STR-DUE_DATE sy-vline 
WA_FDM_INVOICE_MEM_STR-INV_DUE_DATE sy-vline 
WA_FDM_INVOICE_MEM_STR-DISCOUNT_DATE sy-vline 
WA_FDM_INVOICE_MEM_STR-PAYMENT_DATE sy-vline 
WA_FDM_INVOICE_MEM_STR-DUNNING_DATE sy-vline 
WA_FDM_INVOICE_MEM_STR-CURRENCY sy-vline 
WA_FDM_INVOICE_MEM_STR-INVOICE_AMOUNT sy-vline 
WA_FDM_INVOICE_MEM_STR-PAID_AMOUNT sy-vline 
WA_FDM_INVOICE_MEM_STR-OPEN_AMOUNT sy-vline 
WA_FDM_INVOICE_MEM_STR-CREDITED_AMOUNT sy-vline 
WA_FDM_INVOICE_MEM_STR-DUNNING_AMOUNT sy-vline 
WA_FDM_INVOICE_MEM_STR-PAYMENT_ARRANGED sy-vline 
WA_FDM_INVOICE_MEM_STR-DISCOUNT_AMOUNT sy-vline 
WA_FDM_INVOICE_MEM_STR-COLL_DEBITOR sy-vline 
WA_FDM_INVOICE_MEM_STR-TIMESTAMP sy-vline 
WA_FDM_INVOICE_MEM_STR-OBJECT_KEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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