ABAP Select data from SAP table TAX_LINE_SALES_LIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TAX_LINE_SALES_LIST
*  INTO TABLE @DATA(IT_TAX_LINE_SALES_LIST2).
*--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_TAX_LINE_SALES_LIST INDEX 1 INTO DATA(WA_TAX_LINE_SALES_LIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TAX_LINE_SALES_LIST>-SRLNO = 1.
<TAX_LINE_SALES_LIST>-BUKRS = 1.
<TAX_LINE_SALES_LIST>-VBELN = 1.
<TAX_LINE_SALES_LIST>-POSNR = 1.
<TAX_LINE_SALES_LIST>-GJAHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TAX_LINE_SALES_LIST-BLDAT, sy-vline,
  WA_TAX_LINE_SALES_LIST-KUNNR, sy-vline,
  WA_TAX_LINE_SALES_LIST-SERNUM, sy-vline,
  WA_TAX_LINE_SALES_LIST-SEQNUM, sy-vline,
  WA_TAX_LINE_SALES_LIST-CNAME, sy-vline,
  WA_TAX_LINE_SALES_LIST-LAND1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TAX_LINE_SALES_LIST 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_TAX_LINE_SALES_LIST 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_TAX_LINE_SALES_LIST INTO WA_TAX_LINE_SALES_LIST.


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

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

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

*Conversion exit CUNIT, internal->external for field UNITOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TAX_LINE_SALES_LIST-UNITOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TAX_LINE_SALES_LIST-UNITOM.
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_TAX_LINE_SALES_LIST_STR, 
SRLNO TYPE STRING,
BUKRS TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
GJAHR TYPE STRING,
BLDAT TYPE STRING,
KUNNR TYPE STRING,
SERNUM TYPE STRING,
SEQNUM TYPE STRING,
CNAME TYPE STRING,
LAND1 TYPE STRING,
STAWN TYPE STRING,
QUANTY TYPE STRING,
UNITOM TYPE STRING,
CUS_FRM_NO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TAX_LINE_SALES_LIST_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_TAX_LINE_SALES_LIST_STR-SRLNO sy-vline 
WA_TAX_LINE_SALES_LIST_STR-BUKRS sy-vline 
WA_TAX_LINE_SALES_LIST_STR-VBELN sy-vline 
WA_TAX_LINE_SALES_LIST_STR-POSNR sy-vline 
WA_TAX_LINE_SALES_LIST_STR-GJAHR sy-vline 
WA_TAX_LINE_SALES_LIST_STR-BLDAT sy-vline 
WA_TAX_LINE_SALES_LIST_STR-KUNNR sy-vline 
WA_TAX_LINE_SALES_LIST_STR-SERNUM sy-vline 
WA_TAX_LINE_SALES_LIST_STR-SEQNUM sy-vline 
WA_TAX_LINE_SALES_LIST_STR-CNAME sy-vline 
WA_TAX_LINE_SALES_LIST_STR-LAND1 sy-vline 
WA_TAX_LINE_SALES_LIST_STR-STAWN sy-vline 
WA_TAX_LINE_SALES_LIST_STR-QUANTY sy-vline 
WA_TAX_LINE_SALES_LIST_STR-UNITOM sy-vline 
WA_TAX_LINE_SALES_LIST_STR-CUS_FRM_NO sy-vline      INTO ld_text SEPARATED BY SPACE.

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