ABAP Select data from SAP table IDTW_S_FIXEDASSETTAXQUERY 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_FIXEDASSETTAXQUERY 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_FIXEDASSETTAXQUERY. 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_FIXEDASSETTAXQUERY 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_FIXEDASSETTAXQUERY TYPE STANDARD TABLE OF IDTW_S_FIXEDASSETTAXQUERY,
      WA_IDTW_S_FIXEDASSETTAXQUERY TYPE IDTW_S_FIXEDASSETTAXQUERY,
      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_FIXEDASSETTAXQUERY> TYPE IDTW_S_FIXEDASSETTAXQUERY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDTW_S_FIXEDASSETTAXQUERY
*  INTO TABLE @DATA(IT_IDTW_S_FIXEDASSETTAXQUERY2).
*--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_FIXEDASSETTAXQUERY INDEX 1 INTO DATA(WA_IDTW_S_FIXEDASSETTAXQUERY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDTW_S_FIXEDASSETTAXQUERY>-ACCOUNTINGDOCUMENT = 1.
<IDTW_S_FIXEDASSETTAXQUERY>-COMPANYCODE = 1.
<IDTW_S_FIXEDASSETTAXQUERY>-FISCALYEAR = 1.
<IDTW_S_FIXEDASSETTAXQUERY>-ACCOUNTINGDOCUMENTITEM = 1.
<IDTW_S_FIXEDASSETTAXQUERY>-TAXGROUP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDTW_S_FIXEDASSETTAXQUERY-TAIWANESECALENDARYEAR, sy-vline,
  WA_IDTW_S_FIXEDASSETTAXQUERY-FISCALPERIOD, sy-vline,
  WA_IDTW_S_FIXEDASSETTAXQUERY-DISTRICTTAXOFFICE, sy-vline,
  WA_IDTW_S_FIXEDASSETTAXQUERY-SUPPLIERTAXID1, sy-vline,
  WA_IDTW_S_FIXEDASSETTAXQUERY-SUPPLIERTAXID2, sy-vline,
  WA_IDTW_S_FIXEDASSETTAXQUERY-DOCUMENTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDTW_S_FIXEDASSETTAXQUERY 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_FIXEDASSETTAXQUERY 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_FIXEDASSETTAXQUERY INTO WA_IDTW_S_FIXEDASSETTAXQUERY.


*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_FIXEDASSETTAXQUERY-ACCOUNTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDTW_S_FIXEDASSETTAXQUERY-ACCOUNTINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDTW_S_FIXEDASSETTAXQUERY-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDTW_S_FIXEDASSETTAXQUERY-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_FIXEDASSETTAXQUERY-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDTW_S_FIXEDASSETTAXQUERY-CUSTOMER.
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_FIXEDASSETTAXQUERY_STR, 
ACCOUNTINGDOCUMENT TYPE STRING,
COMPANYCODE TYPE STRING,
FISCALYEAR TYPE STRING,
ACCOUNTINGDOCUMENTITEM TYPE STRING,
TAXGROUP TYPE STRING,
TAIWANESECALENDARYEAR TYPE STRING,
FISCALPERIOD TYPE STRING,
DISTRICTTAXOFFICE TYPE STRING,
SUPPLIERTAXID1 TYPE STRING,
SUPPLIERTAXID2 TYPE STRING,
DOCUMENTDATE TYPE STRING,
POSTINGDATE TYPE STRING,
REPORTINGDATE TYPE STRING,
DISPLAYDOCUMENTDATE TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
FIXEDASSETDESCRIPTION TYPE STRING,
QUANTITY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
AMOUNTINCOMPANYCODECURRENCY TYPE STRING,
TAXAMOUNTINCOCODECRCY TYPE STRING,
ASSETADDITIONALDESCRIPTION TYPE STRING,
BUSINESSPLACE TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLIERCOUNTRY TYPE STRING,
CUSTOMER TYPE STRING,
CUSTOMERCOUNTRY TYPE STRING,
ACCOUNTINGDOCUMENTCLASS TYPE STRING,
TAXCODE TYPE STRING,
TAXRATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDTW_S_FIXEDASSETTAXQUERY_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_FIXEDASSETTAXQUERY_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-COMPANYCODE sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-FISCALYEAR sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-ACCOUNTINGDOCUMENTITEM sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-TAXGROUP sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-TAIWANESECALENDARYEAR sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-FISCALPERIOD sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-DISTRICTTAXOFFICE sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-SUPPLIERTAXID1 sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-SUPPLIERTAXID2 sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-DOCUMENTDATE sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-POSTINGDATE sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-REPORTINGDATE sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-DISPLAYDOCUMENTDATE sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-DOCUMENTREFERENCEID sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-FIXEDASSETDESCRIPTION sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-QUANTITY sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-COMPANYCODECURRENCY sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-AMOUNTINCOMPANYCODECURRENCY sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-TAXAMOUNTINCOCODECRCY sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-ASSETADDITIONALDESCRIPTION sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-BUSINESSPLACE sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-SUPPLIER sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-SUPPLIERCOUNTRY sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-CUSTOMER sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-CUSTOMERCOUNTRY sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-ACCOUNTINGDOCUMENTCLASS sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-TAXCODE sy-vline 
WA_IDTW_S_FIXEDASSETTAXQUERY_STR-TAXRATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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