ABAP Select data from SAP table TTE2C_TAX_MAP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TTE2C_TAX_MAP 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 TTE2C_TAX_MAP. 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 TTE2C_TAX_MAP 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_TTE2C_TAX_MAP TYPE STANDARD TABLE OF TTE2C_TAX_MAP,
      WA_TTE2C_TAX_MAP TYPE TTE2C_TAX_MAP,
      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: <TTE2C_TAX_MAP> TYPE TTE2C_TAX_MAP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TTE2C_TAX_MAP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TTE2C_TAX_MAP
  INTO TABLE IT_TTE2C_TAX_MAP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TTE2C_TAX_MAP
*  INTO TABLE @DATA(IT_TTE2C_TAX_MAP2).
*--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_TTE2C_TAX_MAP INDEX 1 INTO DATA(WA_TTE2C_TAX_MAP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TTE2C_TAX_MAP ASSIGNING <TTE2C_TAX_MAP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TTE2C_TAX_MAP>-MANDT = 1.
<TTE2C_TAX_MAP>-KAPPL = 1.
<TTE2C_TAX_MAP>-KALSM = 1.
<TTE2C_TAX_MAP>-VERSI = 1.
<TTE2C_TAX_MAP>-STUNR = 1.

ENDLOOP.

LOOP AT IT_TTE2C_TAX_MAP INTO WA_TTE2C_TAX_MAP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TTE2C_TAX_MAP-ZAEHK, sy-vline,
  WA_TTE2C_TAX_MAP-COUNTRYISO, sy-vline,
  WA_TTE2C_TAX_MAP-TAXTYP, sy-vline,
  WA_TTE2C_TAX_MAP-BASECOMP, sy-vline,
  WA_TTE2C_TAX_MAP-RATECOMP, sy-vline,
  WA_TTE2C_TAX_MAP-VALUECOMP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TTE2C_TAX_MAP 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_TTE2C_TAX_MAP 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_TTE2C_TAX_MAP INTO WA_TTE2C_TAX_MAP.


*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_TTE2C_TAX_MAP_STR, 
MANDT TYPE STRING,
KAPPL TYPE STRING,
KALSM TYPE STRING,
VERSI TYPE STRING,
STUNR TYPE STRING,
ZAEHK TYPE STRING,
COUNTRYISO TYPE STRING,
TAXTYP TYPE STRING,
BASECOMP TYPE STRING,
RATECOMP TYPE STRING,
VALUECOMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TTE2C_TAX_MAP_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_TTE2C_TAX_MAP_STR-MANDT sy-vline 
WA_TTE2C_TAX_MAP_STR-KAPPL sy-vline 
WA_TTE2C_TAX_MAP_STR-KALSM sy-vline 
WA_TTE2C_TAX_MAP_STR-VERSI sy-vline 
WA_TTE2C_TAX_MAP_STR-STUNR sy-vline 
WA_TTE2C_TAX_MAP_STR-ZAEHK sy-vline 
WA_TTE2C_TAX_MAP_STR-COUNTRYISO sy-vline 
WA_TTE2C_TAX_MAP_STR-TAXTYP sy-vline 
WA_TTE2C_TAX_MAP_STR-BASECOMP sy-vline 
WA_TTE2C_TAX_MAP_STR-RATECOMP sy-vline 
WA_TTE2C_TAX_MAP_STR-VALUECOMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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