ABAP Select data from SAP table FIWTAR_S_SIRE_VAT_WHT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIWTAR_S_SIRE_VAT_WHT
*  INTO TABLE @DATA(IT_FIWTAR_S_SIRE_VAT_WHT2).
*--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_FIWTAR_S_SIRE_VAT_WHT INDEX 1 INTO DATA(WA_FIWTAR_S_SIRE_VAT_WHT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIWTAR_S_SIRE_VAT_WHT>-VERSION = 1.
<FIWTAR_S_SIRE_VAT_WHT>-TRACEABILITY_CODE = 1.
<FIWTAR_S_SIRE_VAT_WHT>-OFFICIAL_TAX_CODE = 1.
<FIWTAR_S_SIRE_VAT_WHT>-OFFICIAL_TAX_REGIME = 1.
<FIWTAR_S_SIRE_VAT_WHT>-BUDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIWTAR_S_SIRE_VAT_WHT-VENDOR_CONDITION, sy-vline,
  WA_FIWTAR_S_SIRE_VAT_WHT-IMPOSSIBILITY, sy-vline,
  WA_FIWTAR_S_SIRE_VAT_WHT-REASON, sy-vline,
  WA_FIWTAR_S_SIRE_VAT_WHT-WTAX_AMOUNT, sy-vline,
  WA_FIWTAR_S_SIRE_VAT_WHT-BASE_AMOUNT, sy-vline,
  WA_FIWTAR_S_SIRE_VAT_WHT-EXCLUSION_REGIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIWTAR_S_SIRE_VAT_WHT 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_FIWTAR_S_SIRE_VAT_WHT 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_FIWTAR_S_SIRE_VAT_WHT INTO WA_FIWTAR_S_SIRE_VAT_WHT.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FIWTAR_S_SIRE_VAT_WHT_STR, 
VERSION TYPE STRING,
TRACEABILITY_CODE TYPE STRING,
OFFICIAL_TAX_CODE TYPE STRING,
OFFICIAL_TAX_REGIME TYPE STRING,
BUDAT TYPE STRING,
VENDOR_CONDITION TYPE STRING,
IMPOSSIBILITY TYPE STRING,
REASON TYPE STRING,
WTAX_AMOUNT TYPE STRING,
BASE_AMOUNT TYPE STRING,
EXCLUSION_REGIME TYPE STRING,
EXCLUSION_RATE TYPE STRING,
PUBLICATION_DATE TYPE STRING,
DOCUMENT_TYPE TYPE STRING,
DOCUMENT_DATE TYPE STRING,
DOCUMENT_NUMBER TYPE STRING,
BLANK1 TYPE STRING,
COE TYPE STRING,
ORIGINAL_COE TYPE STRING,
CAE TYPE STRING,
TOTAL_AMOUNT TYPE STRING,
BILLING_REASON TYPE STRING,
STCD1 TYPE STRING,
ORIGINAL_CERT_NUMBER TYPE STRING,
ORIGINAL_CERT_DATE TYPE STRING,
ORIGINAL_CERT_AMOUNT TYPE STRING,
CANCELLATION_REASON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIWTAR_S_SIRE_VAT_WHT_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_FIWTAR_S_SIRE_VAT_WHT_STR-VERSION sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-TRACEABILITY_CODE sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-OFFICIAL_TAX_CODE sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-OFFICIAL_TAX_REGIME sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-BUDAT sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-VENDOR_CONDITION sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-IMPOSSIBILITY sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-REASON sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-WTAX_AMOUNT sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-BASE_AMOUNT sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-EXCLUSION_REGIME sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-EXCLUSION_RATE sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-PUBLICATION_DATE sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-DOCUMENT_TYPE sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-DOCUMENT_DATE sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-DOCUMENT_NUMBER sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-BLANK1 sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-COE sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-ORIGINAL_COE sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-CAE sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-TOTAL_AMOUNT sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-BILLING_REASON sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-STCD1 sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-ORIGINAL_CERT_NUMBER sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-ORIGINAL_CERT_DATE sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-ORIGINAL_CERT_AMOUNT sy-vline 
WA_FIWTAR_S_SIRE_VAT_WHT_STR-CANCELLATION_REASON sy-vline      INTO ld_text SEPARATED BY SPACE.

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