ABAP Select data from SAP table FTPT_A_CAR_PREF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FTPT_A_CAR_PREF
*  INTO TABLE @DATA(IT_FTPT_A_CAR_PREF2).
*--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_FTPT_A_CAR_PREF INDEX 1 INTO DATA(WA_FTPT_A_CAR_PREF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FTPT_A_CAR_PREF>-MANDT = 1.
<FTPT_A_CAR_PREF>-PERNR = 1.
<FTPT_A_CAR_PREF>-REINR = 1.
<FTPT_A_CAR_PREF>-PLANNR = 1.
<FTPT_A_CAR_PREF>-VARIANTE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FTPT_A_CAR_PREF-VARIANTVRS, sy-vline,
  WA_FTPT_A_CAR_PREF-ITEM, sy-vline,
  WA_FTPT_A_CAR_PREF-SERVICE, sy-vline,
  WA_FTPT_A_CAR_PREF-SMOKE, sy-vline,
  WA_FTPT_A_CAR_PREF-KLIMA, sy-vline,
  WA_FTPT_A_CAR_PREF-GEAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FTPT_A_CAR_PREF 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_FTPT_A_CAR_PREF 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_FTPT_A_CAR_PREF INTO WA_FTPT_A_CAR_PREF.


*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_FTPT_A_CAR_PREF_STR, 
MANDT TYPE STRING,
PERNR TYPE STRING,
REINR TYPE STRING,
PLANNR TYPE STRING,
VARIANTE TYPE STRING,
VARIANTVRS TYPE STRING,
ITEM TYPE STRING,
SERVICE TYPE STRING,
SMOKE TYPE STRING,
KLIMA TYPE STRING,
GEAR TYPE STRING,
AUTOM TYPE STRING,
CBRAND TYPE STRING,
PREF1 TYPE STRING,
PREF2 TYPE STRING,
PREF3 TYPE STRING,
INFO_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FTPT_A_CAR_PREF_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_FTPT_A_CAR_PREF_STR-MANDT sy-vline 
WA_FTPT_A_CAR_PREF_STR-PERNR sy-vline 
WA_FTPT_A_CAR_PREF_STR-REINR sy-vline 
WA_FTPT_A_CAR_PREF_STR-PLANNR sy-vline 
WA_FTPT_A_CAR_PREF_STR-VARIANTE sy-vline 
WA_FTPT_A_CAR_PREF_STR-VARIANTVRS sy-vline 
WA_FTPT_A_CAR_PREF_STR-ITEM sy-vline 
WA_FTPT_A_CAR_PREF_STR-SERVICE sy-vline 
WA_FTPT_A_CAR_PREF_STR-SMOKE sy-vline 
WA_FTPT_A_CAR_PREF_STR-KLIMA sy-vline 
WA_FTPT_A_CAR_PREF_STR-GEAR sy-vline 
WA_FTPT_A_CAR_PREF_STR-AUTOM sy-vline 
WA_FTPT_A_CAR_PREF_STR-CBRAND sy-vline 
WA_FTPT_A_CAR_PREF_STR-PREF1 sy-vline 
WA_FTPT_A_CAR_PREF_STR-PREF2 sy-vline 
WA_FTPT_A_CAR_PREF_STR-PREF3 sy-vline 
WA_FTPT_A_CAR_PREF_STR-INFO_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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