ABAP Select data from SAP table J_1UF_TAX_RELATED_DOCUMENT 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_TAX_RELATED_DOCUMENT 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_TAX_RELATED_DOCUMENT. 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_TAX_RELATED_DOCUMENT 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_TAX_RELATED_DOCUMENT TYPE STANDARD TABLE OF J_1UF_TAX_RELATED_DOCUMENT,
      WA_J_1UF_TAX_RELATED_DOCUMENT TYPE J_1UF_TAX_RELATED_DOCUMENT,
      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_TAX_RELATED_DOCUMENT> TYPE J_1UF_TAX_RELATED_DOCUMENT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1UF_TAX_RELATED_DOCUMENT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1UF_TAX_RELATED_DOCUMENT
  INTO TABLE IT_J_1UF_TAX_RELATED_DOCUMENT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1UF_TAX_RELATED_DOCUMENT
*  INTO TABLE @DATA(IT_J_1UF_TAX_RELATED_DOCUMENT2).
*--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_TAX_RELATED_DOCUMENT INDEX 1 INTO DATA(WA_J_1UF_TAX_RELATED_DOCUMENT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1UF_TAX_RELATED_DOCUMENT ASSIGNING <J_1UF_TAX_RELATED_DOCUMENT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1UF_TAX_RELATED_DOCUMENT>-BUKRS = 1.
<J_1UF_TAX_RELATED_DOCUMENT>-BELNR = 1.
<J_1UF_TAX_RELATED_DOCUMENT>-GJAHR = 1.
<J_1UF_TAX_RELATED_DOCUMENT>-LIFNR = 1.
<J_1UF_TAX_RELATED_DOCUMENT>-ZUONR = 1.

ENDLOOP.

LOOP AT IT_J_1UF_TAX_RELATED_DOCUMENT INTO WA_J_1UF_TAX_RELATED_DOCUMENT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1UF_TAX_RELATED_DOCUMENT-BLART, sy-vline,
  WA_J_1UF_TAX_RELATED_DOCUMENT-BLDAT, sy-vline,
  WA_J_1UF_TAX_RELATED_DOCUMENT-HWAER, sy-vline,
  WA_J_1UF_TAX_RELATED_DOCUMENT-WAERS, sy-vline,
  WA_J_1UF_TAX_RELATED_DOCUMENT-BASE7, sy-vline,
  WA_J_1UF_TAX_RELATED_DOCUMENT-BASE14, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1UF_TAX_RELATED_DOCUMENT 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_TAX_RELATED_DOCUMENT 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_TAX_RELATED_DOCUMENT INTO WA_J_1UF_TAX_RELATED_DOCUMENT.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_TAX_RELATED_DOCUMENT-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_TAX_RELATED_DOCUMENT-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_TAX_RELATED_DOCUMENT-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_TAX_RELATED_DOCUMENT-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_TAX_RELATED_DOCUMENT-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_TAX_RELATED_DOCUMENT-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field BASE7
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_TAX_RELATED_DOCUMENT-BASE7
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_TAX_RELATED_DOCUMENT-BASE7.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field BASE14
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_TAX_RELATED_DOCUMENT-BASE14
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_TAX_RELATED_DOCUMENT-BASE14.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field BASE20
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_TAX_RELATED_DOCUMENT-BASE20
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_TAX_RELATED_DOCUMENT-BASE20.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field BASE0
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_TAX_RELATED_DOCUMENT-BASE0
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_TAX_RELATED_DOCUMENT-BASE0.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field BASEFREE
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_TAX_RELATED_DOCUMENT-BASEFREE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_TAX_RELATED_DOCUMENT-BASEFREE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TAX_AMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_TAX_RELATED_DOCUMENT-TAX_AMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_TAX_RELATED_DOCUMENT-TAX_AMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TOTAL_AMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_TAX_RELATED_DOCUMENT-TOTAL_AMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_TAX_RELATED_DOCUMENT-TOTAL_AMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_TAX_RELATED_DOCUMENT-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_TAX_RELATED_DOCUMENT-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field TAX7
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_TAX_RELATED_DOCUMENT-TAX7
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_TAX_RELATED_DOCUMENT-TAX7.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field TAX14
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_TAX_RELATED_DOCUMENT-TAX14
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_TAX_RELATED_DOCUMENT-TAX14.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field TAX20
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_TAX_RELATED_DOCUMENT-TAX20
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_TAX_RELATED_DOCUMENT-TAX20.
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_TAX_RELATED_DOCUMENT_STR, 
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
LIFNR TYPE STRING,
ZUONR TYPE STRING,
BLART TYPE STRING,
BLDAT TYPE STRING,
HWAER TYPE STRING,
WAERS TYPE STRING,
BASE7 TYPE STRING,
BASE14 TYPE STRING,
BASE20 TYPE STRING,
BASE0 TYPE STRING,
BASEFREE TYPE STRING,
VENDOR_INN TYPE STRING,
TAX_AMOUNT TYPE STRING,
TOTAL_AMOUNT TYPE STRING,
DMBTR TYPE STRING,
VENDOR_NAME TYPE STRING,
XBLNR TYPE STRING,
BUDAT TYPE STRING,
GSBER TYPE STRING,
CANCELED TYPE STRING,
DOC_TYPE_FI TYPE STRING,
TAX7 TYPE STRING,
TAX14 TYPE STRING,
TAX20 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1UF_TAX_RELATED_DOCUMENT_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_TAX_RELATED_DOCUMENT_STR-BUKRS sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-BELNR sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-GJAHR sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-LIFNR sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-ZUONR sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-BLART sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-BLDAT sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-HWAER sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-WAERS sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-BASE7 sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-BASE14 sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-BASE20 sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-BASE0 sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-BASEFREE sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-VENDOR_INN sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-TAX_AMOUNT sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-TOTAL_AMOUNT sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-DMBTR sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-VENDOR_NAME sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-XBLNR sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-BUDAT sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-GSBER sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-CANCELED sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-DOC_TYPE_FI sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-TAX7 sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-TAX14 sy-vline 
WA_J_1UF_TAX_RELATED_DOCUMENT_STR-TAX20 sy-vline      INTO ld_text SEPARATED BY SPACE.

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