ABAP Select data from SAP table ICFINSIITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICFINSIITEM
*  INTO TABLE @DATA(IT_ICFINSIITEM2).
*--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_ICFINSIITEM INDEX 1 INTO DATA(WA_ICFINSIITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICFINSIITEM>-MANDT = 1.
<ICFINSIITEM>-SENDERLOGICALSYSTEM = 1.
<ICFINSIITEM>-CENTRALFINANCESUPPLIERINVOICE = 1.
<ICFINSIITEM>-FISCALYEAR = 1.
<ICFINSIITEM>-CFINSUPPLIERINVOICEITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICFINSIITEM-CFINPURCHASINGDOCUMENT, sy-vline,
  WA_ICFINSIITEM-CFINPURCHASINGDOCUMENTITEM, sy-vline,
  WA_ICFINSIITEM-TAXCODE, sy-vline,
  WA_ICFINSIITEM-PURCHASEORDERITEMMATERIAL, sy-vline,
  WA_ICFINSIITEM-SUPPLIERINVOICEITEMAMOUNT, sy-vline,
  WA_ICFINSIITEM-DOCUMENTCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICFINSIITEM 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_ICFINSIITEM 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_ICFINSIITEM INTO WA_ICFINSIITEM.


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

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

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

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

*Conversion exit MATN1, internal->external for field PURCHASEORDERITEMMATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ICFINSIITEM-PURCHASEORDERITEMMATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICFINSIITEM-PURCHASEORDERITEMMATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PURCHASEORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ICFINSIITEM-PURCHASEORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICFINSIITEM-PURCHASEORDERQUANTITYUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FREIGHTSUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICFINSIITEM-FREIGHTSUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICFINSIITEM-FREIGHTSUPPLIER.
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_ICFINSIITEM_STR, 
MANDT TYPE STRING,
SENDERLOGICALSYSTEM TYPE STRING,
CENTRALFINANCESUPPLIERINVOICE TYPE STRING,
FISCALYEAR TYPE STRING,
CFINSUPPLIERINVOICEITEM TYPE STRING,
CFINPURCHASINGDOCUMENT TYPE STRING,
CFINPURCHASINGDOCUMENTITEM TYPE STRING,
TAXCODE TYPE STRING,
PURCHASEORDERITEMMATERIAL TYPE STRING,
SUPPLIERINVOICEITEMAMOUNT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
PLANT TYPE STRING,
QUANTITYINPURCHASEORDERUNIT TYPE STRING,
PURCHASEORDERQUANTITYUNIT TYPE STRING,
FREIGHTSUPPLIER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICFINSIITEM_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_ICFINSIITEM_STR-MANDT sy-vline 
WA_ICFINSIITEM_STR-SENDERLOGICALSYSTEM sy-vline 
WA_ICFINSIITEM_STR-CENTRALFINANCESUPPLIERINVOICE sy-vline 
WA_ICFINSIITEM_STR-FISCALYEAR sy-vline 
WA_ICFINSIITEM_STR-CFINSUPPLIERINVOICEITEM sy-vline 
WA_ICFINSIITEM_STR-CFINPURCHASINGDOCUMENT sy-vline 
WA_ICFINSIITEM_STR-CFINPURCHASINGDOCUMENTITEM sy-vline 
WA_ICFINSIITEM_STR-TAXCODE sy-vline 
WA_ICFINSIITEM_STR-PURCHASEORDERITEMMATERIAL sy-vline 
WA_ICFINSIITEM_STR-SUPPLIERINVOICEITEMAMOUNT sy-vline 
WA_ICFINSIITEM_STR-DOCUMENTCURRENCY sy-vline 
WA_ICFINSIITEM_STR-PLANT sy-vline 
WA_ICFINSIITEM_STR-QUANTITYINPURCHASEORDERUNIT sy-vline 
WA_ICFINSIITEM_STR-PURCHASEORDERQUANTITYUNIT sy-vline 
WA_ICFINSIITEM_STR-FREIGHTSUPPLIER sy-vline      INTO ld_text SEPARATED BY SPACE.

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