ABAP Select data from SAP table CRMT_TTE_IN_TAXVALUE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_TTE_IN_TAXVALUE
*  INTO TABLE @DATA(IT_CRMT_TTE_IN_TAXVALUE2).
*--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_CRMT_TTE_IN_TAXVALUE INDEX 1 INTO DATA(WA_CRMT_TTE_IN_TAXVALUE2).


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

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

ENDLOOP.

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

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


*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_CRMT_TTE_IN_TAXVALUE_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_CRMT_TTE_IN_TAXVALUE_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_CRMT_TTE_IN_TAXVALUE_STR-ITEMID sy-vline 
WA_CRMT_TTE_IN_TAXVALUE_STR-COUNTRYISO sy-vline 
WA_CRMT_TTE_IN_TAXVALUE_STR-TAXEVENT sy-vline 
WA_CRMT_TTE_IN_TAXVALUE_STR-TAXTYP sy-vline 
WA_CRMT_TTE_IN_TAXVALUE_STR-RATE_ID sy-vline 
WA_CRMT_TTE_IN_TAXVALUE_STR-JURISDICTIONCODE sy-vline 
WA_CRMT_TTE_IN_TAXVALUE_STR-JURISDICTLEVEL sy-vline 
WA_CRMT_TTE_IN_TAXVALUE_STR-TAXCOMPONENT sy-vline 
WA_CRMT_TTE_IN_TAXVALUE_STR-CURRENCYTYPE sy-vline 
WA_CRMT_TTE_IN_TAXVALUE_STR-AMOUNT sy-vline 
WA_CRMT_TTE_IN_TAXVALUE_STR-CURRENCYUNIT sy-vline 
WA_CRMT_TTE_IN_TAXVALUE_STR-PRICINGUNIT sy-vline 
WA_CRMT_TTE_IN_TAXVALUE_STR-UNIT sy-vline 
WA_CRMT_TTE_IN_TAXVALUE_STR-STATISTICAL sy-vline 
WA_CRMT_TTE_IN_TAXVALUE_STR-CALCULATIONTYPE sy-vline 
WA_CRMT_TTE_IN_TAXVALUE_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.