ABAP Select data from SAP table FINS_CFIN_S_AV_SI_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FINS_CFIN_S_AV_SI_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 FINS_CFIN_S_AV_SI_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 FINS_CFIN_S_AV_SI_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_FINS_CFIN_S_AV_SI_ITEM TYPE STANDARD TABLE OF FINS_CFIN_S_AV_SI_ITEM,
      WA_FINS_CFIN_S_AV_SI_ITEM TYPE FINS_CFIN_S_AV_SI_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: <FINS_CFIN_S_AV_SI_ITEM> TYPE FINS_CFIN_S_AV_SI_ITEM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FINS_CFIN_S_AV_SI_ITEM
*  INTO TABLE @DATA(IT_FINS_CFIN_S_AV_SI_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_FINS_CFIN_S_AV_SI_ITEM INDEX 1 INTO DATA(WA_FINS_CFIN_S_AV_SI_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FINS_CFIN_S_AV_SI_ITEM>-FINS_LOGSYS = 1.
<FINS_CFIN_S_AV_SI_ITEM>-BELNR = 1.
<FINS_CFIN_S_AV_SI_ITEM>-GJAHR = 1.
<FINS_CFIN_S_AV_SI_ITEM>-BUZEI = 1.
<FINS_CFIN_S_AV_SI_ITEM>-MWSKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FINS_CFIN_S_AV_SI_ITEM-MATNR, sy-vline,
  WA_FINS_CFIN_S_AV_SI_ITEM-WRBTR, sy-vline,
  WA_FINS_CFIN_S_AV_SI_ITEM-WERKS, sy-vline,
  WA_FINS_CFIN_S_AV_SI_ITEM-MENGE, sy-vline,
  WA_FINS_CFIN_S_AV_SI_ITEM-MEINS, sy-vline,
  WA_FINS_CFIN_S_AV_SI_ITEM-BSTME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FINS_CFIN_S_AV_SI_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_FINS_CFIN_S_AV_SI_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_FINS_CFIN_S_AV_SI_ITEM INTO WA_FINS_CFIN_S_AV_SI_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 FINS_LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FINS_CFIN_S_AV_SI_ITEM-FINS_LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_CFIN_S_AV_SI_ITEM-FINS_LOGSYS.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit GJAHR, internal->external for field LFGJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FINS_CFIN_S_AV_SI_ITEM-LFGJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_CFIN_S_AV_SI_ITEM-LFGJA.
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_FINS_CFIN_S_AV_SI_ITEM_STR, 
FINS_LOGSYS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
MWSKZ TYPE STRING,
MATNR TYPE STRING,
WRBTR TYPE STRING,
WERKS TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
BSTME TYPE STRING,
LIFNR TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
LFBNR TYPE STRING,
LFGJA TYPE STRING,
LFPOS TYPE STRING,
DUMMY_AVSIITM_INCL_EEW_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FINS_CFIN_S_AV_SI_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_FINS_CFIN_S_AV_SI_ITEM_STR-FINS_LOGSYS sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-BELNR sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-GJAHR sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-BUZEI sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-MWSKZ sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-MATNR sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-WRBTR sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-WERKS sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-MENGE sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-MEINS sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-BSTME sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-LIFNR sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-EBELN sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-EBELP sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-LFBNR sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-LFGJA sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-LFPOS sy-vline 
WA_FINS_CFIN_S_AV_SI_ITEM_STR-DUMMY_AVSIITM_INCL_EEW_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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