ABAP Select data from SAP table V_TPK02 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_TPK02 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_TPK02. 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_TPK02 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_TPK02 TYPE STANDARD TABLE OF V_TPK02,
      WA_V_TPK02 TYPE V_TPK02,
      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_TPK02> TYPE V_TPK02.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_TPK02.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_TPK02
  INTO TABLE IT_V_TPK02.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TPK02
*  INTO TABLE @DATA(IT_V_TPK022).
*--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_TPK02 INDEX 1 INTO DATA(WA_V_TPK022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_TPK02 ASSIGNING <V_TPK02>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TPK02>-MANDT = 1.
<V_TPK02>-WERKS = 1.
<V_TPK02>-PKSTF = 1.
<V_TPK02>-PKSAF = 1.
<V_TPK02>-MDUEA = 1.

ENDLOOP.

LOOP AT IT_V_TPK02 INTO WA_V_TPK02.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TPK02-KZQUO, sy-vline,
  WA_V_TPK02-KZORB, sy-vline,
  WA_V_TPK02-BWAWE, sy-vline,
  WA_V_TPK02-AUSSP, sy-vline,
  WA_V_TPK02-PKSBZ, sy-vline,
  WA_V_TPK02-PKFRM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TPK02 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_TPK02 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_TPK02 INTO WA_V_TPK02.


*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_TPK02_STR, 
MANDT TYPE STRING,
WERKS TYPE STRING,
PKSTF TYPE STRING,
PKSAF TYPE STRING,
MDUEA TYPE STRING,
KZQUO TYPE STRING,
KZORB TYPE STRING,
BWAWE TYPE STRING,
AUSSP TYPE STRING,
PKSBZ TYPE STRING,
PKFRM TYPE STRING,
BSART TYPE STRING,
CNSCC TYPE STRING,
BWACC TYPE STRING,
UTTRM TYPE STRING,
DRUFB TYPE STRING,
SDDKZ TYPE STRING,
RKFORM TYPE STRING,
RKDRUFB TYPE STRING,
VPACK TYPE STRING,
KNTTP TYPE STRING,
ALERT TYPE STRING,
FORM_TYPE TYPE STRING,
KANB_FORM_PDF TYPE STRING,
CC_FORM_TYPE TYPE STRING,
CC_FORM_PDF TYPE STRING,
KZAKB TYPE STRING,
POST_SYNC_EWM_IM TYPE STRING,
CC_PRINT_FORM TYPE STRING,
KBFORM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TPK02_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_TPK02_STR-MANDT sy-vline 
WA_V_TPK02_STR-WERKS sy-vline 
WA_V_TPK02_STR-PKSTF sy-vline 
WA_V_TPK02_STR-PKSAF sy-vline 
WA_V_TPK02_STR-MDUEA sy-vline 
WA_V_TPK02_STR-KZQUO sy-vline 
WA_V_TPK02_STR-KZORB sy-vline 
WA_V_TPK02_STR-BWAWE sy-vline 
WA_V_TPK02_STR-AUSSP sy-vline 
WA_V_TPK02_STR-PKSBZ sy-vline 
WA_V_TPK02_STR-PKFRM sy-vline 
WA_V_TPK02_STR-BSART sy-vline 
WA_V_TPK02_STR-CNSCC sy-vline 
WA_V_TPK02_STR-BWACC sy-vline 
WA_V_TPK02_STR-UTTRM sy-vline 
WA_V_TPK02_STR-DRUFB sy-vline 
WA_V_TPK02_STR-SDDKZ sy-vline 
WA_V_TPK02_STR-RKFORM sy-vline 
WA_V_TPK02_STR-RKDRUFB sy-vline 
WA_V_TPK02_STR-VPACK sy-vline 
WA_V_TPK02_STR-KNTTP sy-vline 
WA_V_TPK02_STR-ALERT sy-vline 
WA_V_TPK02_STR-FORM_TYPE sy-vline 
WA_V_TPK02_STR-KANB_FORM_PDF sy-vline 
WA_V_TPK02_STR-CC_FORM_TYPE sy-vline 
WA_V_TPK02_STR-CC_FORM_PDF sy-vline 
WA_V_TPK02_STR-KZAKB sy-vline 
WA_V_TPK02_STR-POST_SYNC_EWM_IM sy-vline 
WA_V_TPK02_STR-CC_PRINT_FORM sy-vline 
WA_V_TPK02_STR-KBFORM sy-vline      INTO ld_text SEPARATED BY SPACE.

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