ABAP Select data from SAP table IUSTXPRTTXJXLVL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IUSTXPRTTXJXLVL
*  INTO TABLE @DATA(IT_IUSTXPRTTXJXLVL2).
*--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_IUSTXPRTTXJXLVL INDEX 1 INTO DATA(WA_IUSTXPRTTXJXLVL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IUSTXPRTTXJXLVL>-MANDT = 1.
<IUSTXPRTTXJXLVL>-US_TAXPARTNERTAXDOCUMENT = 1.
<IUSTXPRTTXJXLVL>-US_TAXPARTNERTAXDOCUMENTITEM = 1.
<IUSTXPRTTXJXLVL>-TAXJURISDICTIONLEVEL = 1.
<IUSTXPRTTXJXLVL>-US_TAXSTATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IUSTXPRTTXJXLVL-UNITEDSTATESTAXSOURCING, sy-vline,
  WA_IUSTXPRTTXJXLVL-DEBITCREDITCODE, sy-vline,
  WA_IUSTXPRTTXJXLVL-TAXJURISDICTIONTEXT, sy-vline,
  WA_IUSTXPRTTXJXLVL-USERINPUTTAXRATE, sy-vline,
  WA_IUSTXPRTTXJXLVL-TAXAMOUNTINCOCODECRCY, sy-vline,
  WA_IUSTXPRTTXJXLVL-TAXBASEAMOUNTINCOCODECRCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IUSTXPRTTXJXLVL 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_IUSTXPRTTXJXLVL 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_IUSTXPRTTXJXLVL INTO WA_IUSTXPRTTXJXLVL.


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

*Conversion exit AC132, internal->external for field TAXEXEMPTIONAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_IUSTXPRTTXJXLVL-TAXEXEMPTIONAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IUSTXPRTTXJXLVL-TAXEXEMPTIONAMOUNT.
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_IUSTXPRTTXJXLVL_STR, 
MANDT TYPE STRING,
US_TAXPARTNERTAXDOCUMENT TYPE STRING,
US_TAXPARTNERTAXDOCUMENTITEM TYPE STRING,
TAXJURISDICTIONLEVEL TYPE STRING,
US_TAXSTATE TYPE STRING,
UNITEDSTATESTAXSOURCING TYPE STRING,
DEBITCREDITCODE TYPE STRING,
TAXJURISDICTIONTEXT TYPE STRING,
USERINPUTTAXRATE TYPE STRING,
TAXAMOUNTINCOCODECRCY TYPE STRING,
TAXBASEAMOUNTINCOCODECRCY TYPE STRING,
TAXAMOUNTINTRANSCRCY TYPE STRING,
TAXBASEAMOUNTINTRANSCRCY TYPE STRING,
TAXRATE TYPE STRING,
TAXJURISDICTION TYPE STRING,
GLACCOUNT TYPE STRING,
TAXEXEMPTIONAMOUNT TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
COMPANYCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IUSTXPRTTXJXLVL_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_IUSTXPRTTXJXLVL_STR-MANDT sy-vline 
WA_IUSTXPRTTXJXLVL_STR-US_TAXPARTNERTAXDOCUMENT sy-vline 
WA_IUSTXPRTTXJXLVL_STR-US_TAXPARTNERTAXDOCUMENTITEM sy-vline 
WA_IUSTXPRTTXJXLVL_STR-TAXJURISDICTIONLEVEL sy-vline 
WA_IUSTXPRTTXJXLVL_STR-US_TAXSTATE sy-vline 
WA_IUSTXPRTTXJXLVL_STR-UNITEDSTATESTAXSOURCING sy-vline 
WA_IUSTXPRTTXJXLVL_STR-DEBITCREDITCODE sy-vline 
WA_IUSTXPRTTXJXLVL_STR-TAXJURISDICTIONTEXT sy-vline 
WA_IUSTXPRTTXJXLVL_STR-USERINPUTTAXRATE sy-vline 
WA_IUSTXPRTTXJXLVL_STR-TAXAMOUNTINCOCODECRCY sy-vline 
WA_IUSTXPRTTXJXLVL_STR-TAXBASEAMOUNTINCOCODECRCY sy-vline 
WA_IUSTXPRTTXJXLVL_STR-TAXAMOUNTINTRANSCRCY sy-vline 
WA_IUSTXPRTTXJXLVL_STR-TAXBASEAMOUNTINTRANSCRCY sy-vline 
WA_IUSTXPRTTXJXLVL_STR-TAXRATE sy-vline 
WA_IUSTXPRTTXJXLVL_STR-TAXJURISDICTION sy-vline 
WA_IUSTXPRTTXJXLVL_STR-GLACCOUNT sy-vline 
WA_IUSTXPRTTXJXLVL_STR-TAXEXEMPTIONAMOUNT sy-vline 
WA_IUSTXPRTTXJXLVL_STR-COMPANYCODECURRENCY sy-vline 
WA_IUSTXPRTTXJXLVL_STR-TRANSACTIONCURRENCY sy-vline 
WA_IUSTXPRTTXJXLVL_STR-COMPANYCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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