ABAP Select data from SAP table V_TFK033R into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_TFK033R 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 V_TFK033R. 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 V_TFK033R 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_V_TFK033R TYPE STANDARD TABLE OF V_TFK033R,
      WA_V_TFK033R TYPE V_TFK033R,
      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: <V_TFK033R> TYPE V_TFK033R.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_TFK033R.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_TFK033R
  INTO TABLE IT_V_TFK033R.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TFK033R
*  INTO TABLE @DATA(IT_V_TFK033R2).
*--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_V_TFK033R INDEX 1 INTO DATA(WA_V_TFK033R2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_TFK033R ASSIGNING <V_TFK033R>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TFK033R>-MANDT = 1.
<V_TFK033R>-APPLK = 1.
<V_TFK033R>-BUBER = 1.
<V_TFK033R>-LFDNR = 1.
<V_TFK033R>-USEK1 = 1.

ENDLOOP.

LOOP AT IT_V_TFK033R INTO WA_V_TFK033R.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TFK033R-USEK2, sy-vline,
  WA_V_TFK033R-USEK3, sy-vline,
  WA_V_TFK033R-USEK4, sy-vline,
  WA_V_TFK033R-USEK5, sy-vline,
  WA_V_TFK033R-USEK6, sy-vline,
  WA_V_TFK033R-USEK7, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TFK033R 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_V_TFK033R 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_V_TFK033R INTO WA_V_TFK033R.


*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_V_TFK033R_STR, 
MANDT TYPE STRING,
APPLK TYPE STRING,
BUBER TYPE STRING,
LFDNR TYPE STRING,
USEK1 TYPE STRING,
USEK2 TYPE STRING,
USEK3 TYPE STRING,
USEK4 TYPE STRING,
USEK5 TYPE STRING,
USEK6 TYPE STRING,
USEK7 TYPE STRING,
USEK8 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TFK033R_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_V_TFK033R_STR-MANDT sy-vline 
WA_V_TFK033R_STR-APPLK sy-vline 
WA_V_TFK033R_STR-BUBER sy-vline 
WA_V_TFK033R_STR-LFDNR sy-vline 
WA_V_TFK033R_STR-USEK1 sy-vline 
WA_V_TFK033R_STR-USEK2 sy-vline 
WA_V_TFK033R_STR-USEK3 sy-vline 
WA_V_TFK033R_STR-USEK4 sy-vline 
WA_V_TFK033R_STR-USEK5 sy-vline 
WA_V_TFK033R_STR-USEK6 sy-vline 
WA_V_TFK033R_STR-USEK7 sy-vline 
WA_V_TFK033R_STR-USEK8 sy-vline      INTO ld_text SEPARATED BY SPACE.

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