ABAP Select data from SAP table TTEPDT_TAXVALUE_ST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TTEPDT_TAXVALUE_ST
*  INTO TABLE @DATA(IT_TTEPDT_TAXVALUE_ST2).
*--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_TTEPDT_TAXVALUE_ST INDEX 1 INTO DATA(WA_TTEPDT_TAXVALUE_ST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TTEPDT_TAXVALUE_ST>-ITEMID = 1.
<TTEPDT_TAXVALUE_ST>-COUNTRYISO = 1.
<TTEPDT_TAXVALUE_ST>-TAXEVENT = 1.
<TTEPDT_TAXVALUE_ST>-TAXTYP = 1.
<TTEPDT_TAXVALUE_ST>-RATE_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TTEPDT_TAXVALUE_ST-JURISDICTIONCODE, sy-vline,
  WA_TTEPDT_TAXVALUE_ST-JURISDICTLEVEL, sy-vline,
  WA_TTEPDT_TAXVALUE_ST-TAXCOMPONENT, sy-vline,
  WA_TTEPDT_TAXVALUE_ST-CURRENCYTYPE, sy-vline,
  WA_TTEPDT_TAXVALUE_ST-AMOUNT, sy-vline,
  WA_TTEPDT_TAXVALUE_ST-CURRENCYUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TTEPDT_TAXVALUE_ST 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_TTEPDT_TAXVALUE_ST 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_TTEPDT_TAXVALUE_ST INTO WA_TTEPDT_TAXVALUE_ST.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TTEPDT_TAXVALUE_ST_STR, 
ITEMID TYPE STRING,
COUNTRYISO TYPE STRING,
TAXEVENT TYPE STRING,
TAXTYP TYPE STRING,
RATE_ID TYPE STRING,
JURISDICTIONCODE TYPE STRING,
JURISDICTLEVEL TYPE STRING,
TAXCOMPONENT TYPE STRING,
CURRENCYTYPE TYPE STRING,
AMOUNT TYPE STRING,
CURRENCYUNIT TYPE STRING,
PRICINGUNIT TYPE STRING,
UNIT TYPE STRING,
STATISTICAL TYPE STRING,
CALCULATIONTYPE TYPE STRING,
ACCOUNTINGKEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TTEPDT_TAXVALUE_ST_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_TTEPDT_TAXVALUE_ST_STR-ITEMID sy-vline 
WA_TTEPDT_TAXVALUE_ST_STR-COUNTRYISO sy-vline 
WA_TTEPDT_TAXVALUE_ST_STR-TAXEVENT sy-vline 
WA_TTEPDT_TAXVALUE_ST_STR-TAXTYP sy-vline 
WA_TTEPDT_TAXVALUE_ST_STR-RATE_ID sy-vline 
WA_TTEPDT_TAXVALUE_ST_STR-JURISDICTIONCODE sy-vline 
WA_TTEPDT_TAXVALUE_ST_STR-JURISDICTLEVEL sy-vline 
WA_TTEPDT_TAXVALUE_ST_STR-TAXCOMPONENT sy-vline 
WA_TTEPDT_TAXVALUE_ST_STR-CURRENCYTYPE sy-vline 
WA_TTEPDT_TAXVALUE_ST_STR-AMOUNT sy-vline 
WA_TTEPDT_TAXVALUE_ST_STR-CURRENCYUNIT sy-vline 
WA_TTEPDT_TAXVALUE_ST_STR-PRICINGUNIT sy-vline 
WA_TTEPDT_TAXVALUE_ST_STR-UNIT sy-vline 
WA_TTEPDT_TAXVALUE_ST_STR-STATISTICAL sy-vline 
WA_TTEPDT_TAXVALUE_ST_STR-CALCULATIONTYPE sy-vline 
WA_TTEPDT_TAXVALUE_ST_STR-ACCOUNTINGKEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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