ABAP Select data from SAP table IDTW_S_RAW_TAXITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDTW_S_RAW_TAXITEM
*  INTO TABLE @DATA(IT_IDTW_S_RAW_TAXITEM2).
*--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_IDTW_S_RAW_TAXITEM INDEX 1 INTO DATA(WA_IDTW_S_RAW_TAXITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDTW_S_RAW_TAXITEM>-MANDT = 1.
<IDTW_S_RAW_TAXITEM>-COMPANYCODE = 1.
<IDTW_S_RAW_TAXITEM>-BUSINESSPLACE = 1.
<IDTW_S_RAW_TAXITEM>-ACCOUNTINGDOCUMENTCLASS = 1.
<IDTW_S_RAW_TAXITEM>-ACCOUNTINGDOCUMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDTW_S_RAW_TAXITEM-TAXCODE, sy-vline,
  WA_IDTW_S_RAW_TAXITEM-TAIWANESECALENDARYEAR, sy-vline,
  WA_IDTW_S_RAW_TAXITEM-DEBITCREDITCODE, sy-vline,
  WA_IDTW_S_RAW_TAXITEM-REFERENCEDOCUMENTTYPE, sy-vline,
  WA_IDTW_S_RAW_TAXITEM-LOGICALDOCUMENTCLASS, sy-vline,
  WA_IDTW_S_RAW_TAXITEM-TAXITEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDTW_S_RAW_TAXITEM 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_IDTW_S_RAW_TAXITEM 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_IDTW_S_RAW_TAXITEM INTO WA_IDTW_S_RAW_TAXITEM.


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

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

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

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

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

*Conversion exit AC172, internal->external for field TAXBASEAMOUNTINCOCODECRCY
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_IDTW_S_RAW_TAXITEM-TAXBASEAMOUNTINCOCODECRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDTW_S_RAW_TAXITEM-TAXBASEAMOUNTINCOCODECRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field GROSSTAXAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_IDTW_S_RAW_TAXITEM-GROSSTAXAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDTW_S_RAW_TAXITEM-GROSSTAXAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field I_TAXAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_IDTW_S_RAW_TAXITEM-I_TAXAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDTW_S_RAW_TAXITEM-I_TAXAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field I_SALESAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_IDTW_S_RAW_TAXITEM-I_SALESAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDTW_S_RAW_TAXITEM-I_SALESAMOUNT.
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_IDTW_S_RAW_TAXITEM_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
BUSINESSPLACE TYPE STRING,
ACCOUNTINGDOCUMENTCLASS TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
TAXCODE TYPE STRING,
TAIWANESECALENDARYEAR TYPE STRING,
DEBITCREDITCODE TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,
LOGICALDOCUMENTCLASS TYPE STRING,
TAXITEM TYPE STRING,
ASSIGNMENTREFERENCE TYPE STRING,
JRNLENTRYCNTRYSPECIFICREF1 TYPE STRING,
JRNLENTRYCNTRYSPECIFICREF2 TYPE STRING,
JRNLENTRYCNTRYSPECIFICREF3 TYPE STRING,
REPORTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
SOURCEREFERENCEDOCUMENT TYPE STRING,
POSTINGDATE TYPE STRING,
SUPPLIER TYPE STRING,
CUSTOMER TYPE STRING,
FISCALYEAR TYPE STRING,
BUSINESSPARTNER TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
SUPPLIERTAXID2 TYPE STRING,
SEQUENCENUMBER TYPE STRING,
FISCALPERIOD TYPE STRING,
CUSTOMERTAXID1 TYPE STRING,
SUPPLIERTAXID1 TYPE STRING,
TAXINVOICENUMBER TYPE STRING,
TAXRATE TYPE STRING,
TAXTYPE TYPE STRING,
CONTROLLINGOBJECTTYPE TYPE STRING,
NMBROFPAGES TYPE STRING,
TAXCATEGORY TYPE STRING,
DEDUCTIONTYPE TYPE STRING,
INDUSTRIALTAXRATECATEGORY TYPE STRING,
MULTIPLEINVOICETYPE TYPE STRING,
GOODSARECLEARED TYPE STRING,
ISMARKEDFORDELETION TYPE STRING,
SALESAMTINCOMPANYCODECURRENCY TYPE STRING,
TAXBASEAMOUNTINCOCODECRCY TYPE STRING,
TAXAMOUNT TYPE STRING,
GROSSTAXAMOUNT TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
I_TAXAMOUNT TYPE STRING,
I_SALESAMOUNT TYPE STRING,
LINE_INDEX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDTW_S_RAW_TAXITEM_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_IDTW_S_RAW_TAXITEM_STR-MANDT sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-COMPANYCODE sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-BUSINESSPLACE sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-ACCOUNTINGDOCUMENTCLASS sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-TAXCODE sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-TAIWANESECALENDARYEAR sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-DEBITCREDITCODE sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-LOGICALDOCUMENTCLASS sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-TAXITEM sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-ASSIGNMENTREFERENCE sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-JRNLENTRYCNTRYSPECIFICREF1 sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-JRNLENTRYCNTRYSPECIFICREF2 sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-JRNLENTRYCNTRYSPECIFICREF3 sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-REPORTINGDATE sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-DOCUMENTDATE sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-SOURCEREFERENCEDOCUMENT sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-POSTINGDATE sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-SUPPLIER sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-CUSTOMER sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-FISCALYEAR sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-BUSINESSPARTNER sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-DOCUMENTREFERENCEID sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-SUPPLIERTAXID2 sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-SEQUENCENUMBER sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-FISCALPERIOD sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-CUSTOMERTAXID1 sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-SUPPLIERTAXID1 sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-TAXINVOICENUMBER sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-TAXRATE sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-TAXTYPE sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-CONTROLLINGOBJECTTYPE sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-NMBROFPAGES sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-TAXCATEGORY sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-DEDUCTIONTYPE sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-INDUSTRIALTAXRATECATEGORY sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-MULTIPLEINVOICETYPE sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-GOODSARECLEARED sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-ISMARKEDFORDELETION sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-SALESAMTINCOMPANYCODECURRENCY sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-TAXBASEAMOUNTINCOCODECRCY sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-TAXAMOUNT sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-GROSSTAXAMOUNT sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-COMPANYCODECURRENCY sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-I_TAXAMOUNT sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-I_SALESAMOUNT sy-vline 
WA_IDTW_S_RAW_TAXITEM_STR-LINE_INDEX sy-vline      INTO ld_text SEPARATED BY SPACE.

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