ABAP Select data from SAP table FIQA_S_WHT_ITEM_DETAIL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIQA_S_WHT_ITEM_DETAIL
*  INTO TABLE @DATA(IT_FIQA_S_WHT_ITEM_DETAIL2).
*--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_FIQA_S_WHT_ITEM_DETAIL INDEX 1 INTO DATA(WA_FIQA_S_WHT_ITEM_DETAIL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIQA_S_WHT_ITEM_DETAIL>-HEADER_LABEL = 1.
<FIQA_S_WHT_ITEM_DETAIL>-COMPANYCODE_L = 1.
<FIQA_S_WHT_ITEM_DETAIL>-TAXIDNUM_L = 1.
<FIQA_S_WHT_ITEM_DETAIL>-ADDRESS_L = 1.
<FIQA_S_WHT_ITEM_DETAIL>-ACTIVITY_L = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIQA_S_WHT_ITEM_DETAIL-TOTWHLDGTAXAMTINCOCODECRCY_L, sy-vline,
  WA_FIQA_S_WHT_ITEM_DETAIL-NUMINLETTERS_L, sy-vline,
  WA_FIQA_S_WHT_ITEM_DETAIL-FISCALPERIOD_L, sy-vline,
  WA_FIQA_S_WHT_ITEM_DETAIL-HEADER, sy-vline,
  WA_FIQA_S_WHT_ITEM_DETAIL-COMPANYCODE, sy-vline,
  WA_FIQA_S_WHT_ITEM_DETAIL-TAXIDNUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIQA_S_WHT_ITEM_DETAIL 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_FIQA_S_WHT_ITEM_DETAIL 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_FIQA_S_WHT_ITEM_DETAIL INTO WA_FIQA_S_WHT_ITEM_DETAIL.


*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 AC152, internal->external for field TOTWHLDGTAXAMTINCOCODECRCY
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIQA_S_WHT_ITEM_DETAIL-TOTWHLDGTAXAMTINCOCODECRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIQA_S_WHT_ITEM_DETAIL-TOTWHLDGTAXAMTINCOCODECRCY.
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_FIQA_S_WHT_ITEM_DETAIL_STR, 
HEADER_LABEL TYPE STRING,
COMPANYCODE_L TYPE STRING,
TAXIDNUM_L TYPE STRING,
ADDRESS_L TYPE STRING,
ACTIVITY_L TYPE STRING,
TOTWHLDGTAXAMTINCOCODECRCY_L TYPE STRING,
NUMINLETTERS_L TYPE STRING,
FISCALPERIOD_L TYPE STRING,
HEADER TYPE STRING,
COMPANYCODE TYPE STRING,
TAXIDNUM TYPE STRING,
ADDRESS TYPE STRING,
ACTIVITY TYPE STRING,
TOTWHLDGTAXAMTINCOCODECRCY TYPE STRING,
NUMINLETTERS TYPE STRING,
FISCALPERIOD TYPE STRING,
ITEM_LABEL TYPE STRING,
TYPEOFDESCRIPTION_L TYPE STRING,
TYPEOFPAYMENT_L TYPE STRING,
WITHHOLDINGTAXCODEDESP_L TYPE STRING,
PAYEMNTDOC_L TYPE STRING,
DOCUMENTREFERENCEID_L TYPE STRING,
DOCUMENTDATE_L TYPE STRING,
PAYMENTDATE_L TYPE STRING,
REPORTINGCURRENCY_L TYPE STRING,
WHLDGTAXBASEAMTINCOCODECRCY_L TYPE STRING,
WITHHOLDINGTAXPERCENT_L TYPE STRING,
BPIDENTIFICATIONTYPETEXT_L TYPE STRING,
BPIDENTIFICATIONNUMBER_L TYPE STRING,
TRADENAME_L TYPE STRING,
ORGANIZATIONBPNAME1_L TYPE STRING,
ORGANIZATIONBPNAME2_L TYPE STRING,
BUSINESSPARTNERCOUNTRY_L TYPE STRING,
ITEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIQA_S_WHT_ITEM_DETAIL_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_FIQA_S_WHT_ITEM_DETAIL_STR-HEADER_LABEL sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-COMPANYCODE_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-TAXIDNUM_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-ADDRESS_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-ACTIVITY_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-TOTWHLDGTAXAMTINCOCODECRCY_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-NUMINLETTERS_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-FISCALPERIOD_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-HEADER sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-COMPANYCODE sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-TAXIDNUM sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-ADDRESS sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-ACTIVITY sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-TOTWHLDGTAXAMTINCOCODECRCY sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-NUMINLETTERS sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-FISCALPERIOD sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-ITEM_LABEL sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-TYPEOFDESCRIPTION_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-TYPEOFPAYMENT_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-WITHHOLDINGTAXCODEDESP_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-PAYEMNTDOC_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-DOCUMENTREFERENCEID_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-DOCUMENTDATE_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-PAYMENTDATE_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-REPORTINGCURRENCY_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-WHLDGTAXBASEAMTINCOCODECRCY_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-WITHHOLDINGTAXPERCENT_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-BPIDENTIFICATIONTYPETEXT_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-BPIDENTIFICATIONNUMBER_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-TRADENAME_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-ORGANIZATIONBPNAME1_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-ORGANIZATIONBPNAME2_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-BUSINESSPARTNERCOUNTRY_L sy-vline 
WA_FIQA_S_WHT_ITEM_DETAIL_STR-ITEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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