ABAP Select data from SAP table FINS_CFIN_S_AV_SI_EX_ITEM_K 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_EX_ITEM_K 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_EX_ITEM_K. 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_EX_ITEM_K 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_EX_ITEM_K TYPE STANDARD TABLE OF FINS_CFIN_S_AV_SI_EX_ITEM_K,
      WA_FINS_CFIN_S_AV_SI_EX_ITEM_K TYPE FINS_CFIN_S_AV_SI_EX_ITEM_K,
      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_EX_ITEM_K> TYPE FINS_CFIN_S_AV_SI_EX_ITEM_K.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FINS_CFIN_S_AV_SI_EX_ITEM_K
*  INTO TABLE @DATA(IT_FINS_CFIN_S_AV_SI_EX_ITEM_K2).
*--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_EX_ITEM_K INDEX 1 INTO DATA(WA_FINS_CFIN_S_AV_SI_EX_ITEM_K2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FINS_CFIN_S_AV_SI_EX_ITEM_K>-SOURCESYSTEMLOGICALSYSTEM = 1.
<FINS_CFIN_S_AV_SI_EX_ITEM_K>-CFINRPLDSUPPLIERINVOICE = 1.
<FINS_CFIN_S_AV_SI_EX_ITEM_K>-FISCALYEAR = 1.
<FINS_CFIN_S_AV_SI_EX_ITEM_K>-CFINRPLDSUPPLIERINVOICEITEM = 1.
<FINS_CFIN_S_AV_SI_EX_ITEM_K>-CFINRPLDPURCHASINGDOCUMENT = 1.

ENDLOOP.

LOOP AT IT_FINS_CFIN_S_AV_SI_EX_ITEM_K INTO WA_FINS_CFIN_S_AV_SI_EX_ITEM_K.
*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_EX_ITEM_K-CFINRPLDPURCHASINGDOCUMENTITEM, sy-vline,
  WA_FINS_CFIN_S_AV_SI_EX_ITEM_K-TAXCODE, sy-vline,
  WA_FINS_CFIN_S_AV_SI_EX_ITEM_K-SUPPLIERINVOICEITEMAMOUNT, sy-vline,
  WA_FINS_CFIN_S_AV_SI_EX_ITEM_K-MATERIAL, sy-vline,
  WA_FINS_CFIN_S_AV_SI_EX_ITEM_K-PLANT, sy-vline,
  WA_FINS_CFIN_S_AV_SI_EX_ITEM_K-FREIGHTSUPPLIER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FINS_CFIN_S_AV_SI_EX_ITEM_K 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_EX_ITEM_K 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_EX_ITEM_K INTO WA_FINS_CFIN_S_AV_SI_EX_ITEM_K.


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

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

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

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

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

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

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

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

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

*Conversion exit GJAHR, internal->external for field REFERENCEDOCUMENTFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FINS_CFIN_S_AV_SI_EX_ITEM_K-REFERENCEDOCUMENTFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_CFIN_S_AV_SI_EX_ITEM_K-REFERENCEDOCUMENTFISCALYEAR.
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_EX_ITEM_K_STR, 
SOURCESYSTEMLOGICALSYSTEM TYPE STRING,
CFINRPLDSUPPLIERINVOICE TYPE STRING,
FISCALYEAR TYPE STRING,
CFINRPLDSUPPLIERINVOICEITEM TYPE STRING,
CFINRPLDPURCHASINGDOCUMENT TYPE STRING,
CFINRPLDPURCHASINGDOCUMENTITEM TYPE STRING,
TAXCODE TYPE STRING,
SUPPLIERINVOICEITEMAMOUNT TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
FREIGHTSUPPLIER TYPE STRING,
PURCHASEORDERQUANTITYUNIT TYPE STRING,
QUANTITYINPURCHASEORDERUNIT TYPE STRING,
QUANTITYUNIT TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
REFERENCEDOCUMENTFISCALYEAR TYPE STRING,
REFERENCEDOCUMENTITEM TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
DUMMY_AVSIITM_INCL_EEW_PS TYPE STRING,
COMPANYCODE TYPE STRING,
CHANGEID TYPE STRING,
ISDELTA TYPE STRING,
TOBEDELETED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_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_EX_ITEM_K_STR-SOURCESYSTEMLOGICALSYSTEM sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-CFINRPLDSUPPLIERINVOICE sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-FISCALYEAR sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-CFINRPLDSUPPLIERINVOICEITEM sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-CFINRPLDPURCHASINGDOCUMENT sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-CFINRPLDPURCHASINGDOCUMENTITEM sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-TAXCODE sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-SUPPLIERINVOICEITEMAMOUNT sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-MATERIAL sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-PLANT sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-FREIGHTSUPPLIER sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-PURCHASEORDERQUANTITYUNIT sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-QUANTITYINPURCHASEORDERUNIT sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-QUANTITYUNIT sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-REFERENCEDOCUMENT sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-REFERENCEDOCUMENTFISCALYEAR sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-REFERENCEDOCUMENTITEM sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-DOCUMENTCURRENCY sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-LASTCHANGEDATETIME sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-DUMMY_AVSIITM_INCL_EEW_PS sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-COMPANYCODE sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-CHANGEID sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-ISDELTA sy-vline 
WA_FINS_CFIN_S_AV_SI_EX_ITEM_K_STR-TOBEDELETED sy-vline      INTO ld_text SEPARATED BY SPACE.

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