ABAP Select data from SAP table J_1UF_S_TAX_POS_EXT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1UF_S_TAX_POS_EXT 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 J_1UF_S_TAX_POS_EXT. 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 J_1UF_S_TAX_POS_EXT 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_J_1UF_S_TAX_POS_EXT TYPE STANDARD TABLE OF J_1UF_S_TAX_POS_EXT,
      WA_J_1UF_S_TAX_POS_EXT TYPE J_1UF_S_TAX_POS_EXT,
      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: <J_1UF_S_TAX_POS_EXT> TYPE J_1UF_S_TAX_POS_EXT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1UF_S_TAX_POS_EXT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1UF_S_TAX_POS_EXT
  INTO TABLE IT_J_1UF_S_TAX_POS_EXT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1UF_S_TAX_POS_EXT
*  INTO TABLE @DATA(IT_J_1UF_S_TAX_POS_EXT2).
*--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_J_1UF_S_TAX_POS_EXT INDEX 1 INTO DATA(WA_J_1UF_S_TAX_POS_EXT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1UF_S_TAX_POS_EXT ASSIGNING <J_1UF_S_TAX_POS_EXT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1UF_S_TAX_POS_EXT>-BUZEI = 1.
<J_1UF_S_TAX_POS_EXT>-SHKZG = 1.
<J_1UF_S_TAX_POS_EXT>-MWSKZ = 1.
<J_1UF_S_TAX_POS_EXT>-SGTXT = 1.
<J_1UF_S_TAX_POS_EXT>-MATNR = 1.

ENDLOOP.

LOOP AT IT_J_1UF_S_TAX_POS_EXT INTO WA_J_1UF_S_TAX_POS_EXT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1UF_S_TAX_POS_EXT-MATWA, sy-vline,
  WA_J_1UF_S_TAX_POS_EXT-MEINS, sy-vline,
  WA_J_1UF_S_TAX_POS_EXT-DMBTR, sy-vline,
  WA_J_1UF_S_TAX_POS_EXT-WRBTR, sy-vline,
  WA_J_1UF_S_TAX_POS_EXT-MENGE, sy-vline,
  WA_J_1UF_S_TAX_POS_EXT-PRICE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1UF_S_TAX_POS_EXT 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_J_1UF_S_TAX_POS_EXT 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_J_1UF_S_TAX_POS_EXT INTO WA_J_1UF_S_TAX_POS_EXT.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_S_TAX_POS_EXT-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_S_TAX_POS_EXT-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATWA
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_S_TAX_POS_EXT-MATWA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_S_TAX_POS_EXT-MATWA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_S_TAX_POS_EXT-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_S_TAX_POS_EXT-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_S_TAX_POS_EXT-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_S_TAX_POS_EXT-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_S_TAX_POS_EXT-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_S_TAX_POS_EXT-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field PRICE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_S_TAX_POS_EXT-PRICE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_S_TAX_POS_EXT-PRICE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORDNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_S_TAX_POS_EXT-ORDNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_S_TAX_POS_EXT-ORDNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_S_TAX_POS_EXT-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_S_TAX_POS_EXT-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN_REF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_S_TAX_POS_EXT-VBELN_REF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_S_TAX_POS_EXT-VBELN_REF.
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_J_1UF_S_TAX_POS_EXT_STR, 
BUZEI TYPE STRING,
SHKZG TYPE STRING,
MWSKZ TYPE STRING,
SGTXT TYPE STRING,
MATNR TYPE STRING,
MATWA TYPE STRING,
MEINS TYPE STRING,
DMBTR TYPE STRING,
WRBTR TYPE STRING,
MENGE TYPE STRING,
PRICE TYPE STRING,
MENGE_LONG TYPE STRING,
PRICE_LONG TYPE STRING,
COR_REASON TYPE STRING,
COMMODITY TYPE STRING,
ORDNUM TYPE STRING,
ORDPOS TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
VBELN_REF TYPE STRING,
POSNR_REF TYPE STRING,
FL_FOUND TYPE STRING,
QUANT_PRICE_ERR TYPE STRING,
BUZEI_LONG TYPE STRING,
MKT_PRICE TYPE STRING,
MKT_PRICE_LONG TYPE STRING,
MWSKZ_SOURCE TYPE STRING,
ZMWSK TYPE STRING,
DOC_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1UF_S_TAX_POS_EXT_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_J_1UF_S_TAX_POS_EXT_STR-BUZEI sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-SHKZG sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-MWSKZ sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-SGTXT sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-MATNR sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-MATWA sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-MEINS sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-DMBTR sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-WRBTR sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-MENGE sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-PRICE sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-MENGE_LONG sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-PRICE_LONG sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-COR_REASON sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-COMMODITY sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-ORDNUM sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-ORDPOS sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-VBELN sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-POSNR sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-VBELN_REF sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-POSNR_REF sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-FL_FOUND sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-QUANT_PRICE_ERR sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-BUZEI_LONG sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-MKT_PRICE sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-MKT_PRICE_LONG sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-MWSKZ_SOURCE sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-ZMWSK sy-vline 
WA_J_1UF_S_TAX_POS_EXT_STR-DOC_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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