ABAP Select data from SAP table FIWTUS_S_1042S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FIWTUS_S_1042S 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 FIWTUS_S_1042S. 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 FIWTUS_S_1042S 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_FIWTUS_S_1042S TYPE STANDARD TABLE OF FIWTUS_S_1042S,
      WA_FIWTUS_S_1042S TYPE FIWTUS_S_1042S,
      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: <FIWTUS_S_1042S> TYPE FIWTUS_S_1042S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FIWTUS_S_1042S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FIWTUS_S_1042S
  INTO TABLE IT_FIWTUS_S_1042S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIWTUS_S_1042S
*  INTO TABLE @DATA(IT_FIWTUS_S_1042S2).
*--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_FIWTUS_S_1042S INDEX 1 INTO DATA(WA_FIWTUS_S_1042S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FIWTUS_S_1042S ASSIGNING <FIWTUS_S_1042S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIWTUS_S_1042S>-TOTAL_WHT_CREDIT = 1.
<FIWTUS_S_1042S>-COUNTRY = 1.
<FIWTUS_S_1042S>-BUSINESSPARTNER = 1.
<FIWTUS_S_1042S>-REPORTINGCURRENCY = 1.
<FIWTUS_S_1042S>-REPORTINGDATE = 1.

ENDLOOP.

LOOP AT IT_FIWTUS_S_1042S INTO WA_FIWTUS_S_1042S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIWTUS_S_1042S-WHLDGTAXBASEAMTINCOCODECRCY, sy-vline,
  WA_FIWTUS_S_1042S-WHLDGTAXAMTINCOCODECRCY, sy-vline,
  WA_FIWTUS_S_1042S-WHLDGTAXEXMPTAMTINCOCODECRCY, sy-vline,
  WA_FIWTUS_S_1042S-PAYERNAME1, sy-vline,
  WA_FIWTUS_S_1042S-PAYERNAME2, sy-vline,
  WA_FIWTUS_S_1042S-PAYERNAME3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIWTUS_S_1042S 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_FIWTUS_S_1042S 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_FIWTUS_S_1042S INTO WA_FIWTUS_S_1042S.


*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 BPMAP, internal->external for field BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_BPMAP_OUTPUT'
  EXPORTING
    input =                      WA_FIWTUS_S_1042S-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIWTUS_S_1042S-BUSINESSPARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CITYCODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FIWTUS_S_1042S-CITYCODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIWTUS_S_1042S-CITYCODE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_FIWTUS_S_1042S-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIWTUS_S_1042S-LANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FIWTUS_S_1042S-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIWTUS_S_1042S-FISCALYEAR.
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_FIWTUS_S_1042S_STR, 
TOTAL_WHT_CREDIT TYPE STRING,
COUNTRY TYPE STRING,
BUSINESSPARTNER TYPE STRING,
REPORTINGCURRENCY TYPE STRING,
REPORTINGDATE TYPE STRING,
WHLDGTAXBASEAMTINCOCODECRCY TYPE STRING,
WHLDGTAXAMTINCOCODECRCY TYPE STRING,
WHLDGTAXEXMPTAMTINCOCODECRCY TYPE STRING,
PAYERNAME1 TYPE STRING,
PAYERNAME2 TYPE STRING,
PAYERNAME3 TYPE STRING,
CITYNAME TYPE STRING,
REGION TYPE STRING,
PHONENUMBER TYPE STRING,
STREETPREFIXNAME TYPE STRING,
STREETNAME TYPE STRING,
HOUSENUMBER TYPE STRING,
COMPANYCODENAME TYPE STRING,
COMPANYPOSTALCODE TYPE STRING,
CITYCODE TYPE STRING,
BUSINESSPARTNERCOUNTRY TYPE STRING,
CUSTOMERSUPPLIERPOSTALCODE TYPE STRING,
CUSTOMERSUPPLIERCITYNAME TYPE STRING,
CUSTOMERSUPPLIERSTREETNAME TYPE STRING,
ORGANIZATIONBPNAME1 TYPE STRING,
ORGANIZATIONBPNAME2 TYPE STRING,
BPSTPREFIXNAME TYPE STRING,
BPRGN TYPE STRING,
BUSPARTPOBOXRGN TYPE STRING,
CUSTOMERSUPPLIERHOUSENUMBER TYPE STRING,
OFFICIALWHLDGTAXCODE TYPE STRING,
WHLDGTAXREFERENCETEXT TYPE STRING,
CHAP3EXEMPTIONCODE TYPE STRING,
TAXNUMBER1 TYPE STRING,
WHLDNGRECIPIENTTYPE TYPE STRING,
WITHHOLDINGALLOWANCE TYPE STRING,
TAXNUMBER5 TYPE STRING,
USFOREIGNTXID TYPE STRING,
WT_TAXREF1_VAL TYPE STRING,
US_CHP3_STATUS TYPE STRING,
US_GIIN TYPE STRING,
US_INT_GIIN TYPE STRING,
US_INT_NAME TYPE STRING,
US_INT_EIIN TYPE STRING,
US_INT_FTIN TYPE STRING,
US_INT_CH3C TYPE STRING,
US_INT_CC TYPE STRING,
US_PAYER_NAME TYPE STRING,
US_PAYER_TIN TYPE STRING,
US_PAYER_GIIN TYPE STRING,
BIRTHDATE TYPE STRING,
LANGUAGE TYPE STRING,
WITHHOLDINGTAXRATE TYPE STRING,
TAXNUMBER4 TYPE STRING,
US_AMEN_NO TYPE STRING,
US_AMEN_CHECK TYPE STRING,
FISCALYEAR TYPE STRING,
US_INT_ADDRESS TYPE STRING,
US_INT_COUNTRY_POST TYPE STRING,
US_PAYER_STATUS_CODECHP3 TYPE STRING,
PARTNERSHIP_IND TYPE STRING,
LOB_CODE TYPE STRING,
US_RECIPIENT_FTIN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIWTUS_S_1042S_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_FIWTUS_S_1042S_STR-TOTAL_WHT_CREDIT sy-vline 
WA_FIWTUS_S_1042S_STR-COUNTRY sy-vline 
WA_FIWTUS_S_1042S_STR-BUSINESSPARTNER sy-vline 
WA_FIWTUS_S_1042S_STR-REPORTINGCURRENCY sy-vline 
WA_FIWTUS_S_1042S_STR-REPORTINGDATE sy-vline 
WA_FIWTUS_S_1042S_STR-WHLDGTAXBASEAMTINCOCODECRCY sy-vline 
WA_FIWTUS_S_1042S_STR-WHLDGTAXAMTINCOCODECRCY sy-vline 
WA_FIWTUS_S_1042S_STR-WHLDGTAXEXMPTAMTINCOCODECRCY sy-vline 
WA_FIWTUS_S_1042S_STR-PAYERNAME1 sy-vline 
WA_FIWTUS_S_1042S_STR-PAYERNAME2 sy-vline 
WA_FIWTUS_S_1042S_STR-PAYERNAME3 sy-vline 
WA_FIWTUS_S_1042S_STR-CITYNAME sy-vline 
WA_FIWTUS_S_1042S_STR-REGION sy-vline 
WA_FIWTUS_S_1042S_STR-PHONENUMBER sy-vline 
WA_FIWTUS_S_1042S_STR-STREETPREFIXNAME sy-vline 
WA_FIWTUS_S_1042S_STR-STREETNAME sy-vline 
WA_FIWTUS_S_1042S_STR-HOUSENUMBER sy-vline 
WA_FIWTUS_S_1042S_STR-COMPANYCODENAME sy-vline 
WA_FIWTUS_S_1042S_STR-COMPANYPOSTALCODE sy-vline 
WA_FIWTUS_S_1042S_STR-CITYCODE sy-vline 
WA_FIWTUS_S_1042S_STR-BUSINESSPARTNERCOUNTRY sy-vline 
WA_FIWTUS_S_1042S_STR-CUSTOMERSUPPLIERPOSTALCODE sy-vline 
WA_FIWTUS_S_1042S_STR-CUSTOMERSUPPLIERCITYNAME sy-vline 
WA_FIWTUS_S_1042S_STR-CUSTOMERSUPPLIERSTREETNAME sy-vline 
WA_FIWTUS_S_1042S_STR-ORGANIZATIONBPNAME1 sy-vline 
WA_FIWTUS_S_1042S_STR-ORGANIZATIONBPNAME2 sy-vline 
WA_FIWTUS_S_1042S_STR-BPSTPREFIXNAME sy-vline 
WA_FIWTUS_S_1042S_STR-BPRGN sy-vline 
WA_FIWTUS_S_1042S_STR-BUSPARTPOBOXRGN sy-vline 
WA_FIWTUS_S_1042S_STR-CUSTOMERSUPPLIERHOUSENUMBER sy-vline 
WA_FIWTUS_S_1042S_STR-OFFICIALWHLDGTAXCODE sy-vline 
WA_FIWTUS_S_1042S_STR-WHLDGTAXREFERENCETEXT sy-vline 
WA_FIWTUS_S_1042S_STR-CHAP3EXEMPTIONCODE sy-vline 
WA_FIWTUS_S_1042S_STR-TAXNUMBER1 sy-vline 
WA_FIWTUS_S_1042S_STR-WHLDNGRECIPIENTTYPE sy-vline 
WA_FIWTUS_S_1042S_STR-WITHHOLDINGALLOWANCE sy-vline 
WA_FIWTUS_S_1042S_STR-TAXNUMBER5 sy-vline 
WA_FIWTUS_S_1042S_STR-USFOREIGNTXID sy-vline 
WA_FIWTUS_S_1042S_STR-WT_TAXREF1_VAL sy-vline 
WA_FIWTUS_S_1042S_STR-US_CHP3_STATUS sy-vline 
WA_FIWTUS_S_1042S_STR-US_GIIN sy-vline 
WA_FIWTUS_S_1042S_STR-US_INT_GIIN sy-vline 
WA_FIWTUS_S_1042S_STR-US_INT_NAME sy-vline 
WA_FIWTUS_S_1042S_STR-US_INT_EIIN sy-vline 
WA_FIWTUS_S_1042S_STR-US_INT_FTIN sy-vline 
WA_FIWTUS_S_1042S_STR-US_INT_CH3C sy-vline 
WA_FIWTUS_S_1042S_STR-US_INT_CC sy-vline 
WA_FIWTUS_S_1042S_STR-US_PAYER_NAME sy-vline 
WA_FIWTUS_S_1042S_STR-US_PAYER_TIN sy-vline 
WA_FIWTUS_S_1042S_STR-US_PAYER_GIIN sy-vline 
WA_FIWTUS_S_1042S_STR-BIRTHDATE sy-vline 
WA_FIWTUS_S_1042S_STR-LANGUAGE sy-vline 
WA_FIWTUS_S_1042S_STR-WITHHOLDINGTAXRATE sy-vline 
WA_FIWTUS_S_1042S_STR-TAXNUMBER4 sy-vline 
WA_FIWTUS_S_1042S_STR-US_AMEN_NO sy-vline 
WA_FIWTUS_S_1042S_STR-US_AMEN_CHECK sy-vline 
WA_FIWTUS_S_1042S_STR-FISCALYEAR sy-vline 
WA_FIWTUS_S_1042S_STR-US_INT_ADDRESS sy-vline 
WA_FIWTUS_S_1042S_STR-US_INT_COUNTRY_POST sy-vline 
WA_FIWTUS_S_1042S_STR-US_PAYER_STATUS_CODECHP3 sy-vline 
WA_FIWTUS_S_1042S_STR-PARTNERSHIP_IND sy-vline 
WA_FIWTUS_S_1042S_STR-LOB_CODE sy-vline 
WA_FIWTUS_S_1042S_STR-US_RECIPIENT_FTIN sy-vline      INTO ld_text SEPARATED BY SPACE.

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