ABAP Select data from SAP table V_TKKVHVTV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_TKKVHVTV 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_TKKVHVTV. 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_TKKVHVTV 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_TKKVHVTV TYPE STANDARD TABLE OF V_TKKVHVTV,
      WA_V_TKKVHVTV TYPE V_TKKVHVTV,
      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_TKKVHVTV> TYPE V_TKKVHVTV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TKKVHVTV
*  INTO TABLE @DATA(IT_V_TKKVHVTV2).
*--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_TKKVHVTV INDEX 1 INTO DATA(WA_V_TKKVHVTV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TKKVHVTV>-MANDT = 1.
<V_TKKVHVTV>-APPLK = 1.
<V_TKKVHVTV>-HVORG = 1.
<V_TKKVHVTV>-TVORG = 1.
<V_TKKVHVTV>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TKKVHVTV-PRGRP, sy-vline,
  WA_V_TKKVHVTV-TXT30, sy-vline,
  WA_V_TKKVHVTV-PNTYP, sy-vline,
  WA_V_TKKVHVTV-BROPOSCAT, sy-vline,
  WA_V_TKKVHVTV-BROSUBPOSCAT, sy-vline,
  WA_V_TKKVHVTV-STAKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TKKVHVTV 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_TKKVHVTV 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_TKKVHVTV INTO WA_V_TKKVHVTV.


*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_TKKVHVTV_STR, 
MANDT TYPE STRING,
APPLK TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
BUKRS TYPE STRING,
PRGRP TYPE STRING,
TXT30 TYPE STRING,
PNTYP TYPE STRING,
BROPOSCAT TYPE STRING,
BROSUBPOSCAT TYPE STRING,
STAKZ TYPE STRING,
XPMAN TYPE STRING,
XPDREP TYPE STRING,
XINVOICESUPPRESS TYPE STRING,
XDUNNINGSUPPRESS TYPE STRING,
XINTERESTRELEVAN TYPE STRING,
XTAXRELEVANT TYPE STRING,
XCHARGESUPPRESS TYPE STRING,
XBILL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TKKVHVTV_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_TKKVHVTV_STR-MANDT sy-vline 
WA_V_TKKVHVTV_STR-APPLK sy-vline 
WA_V_TKKVHVTV_STR-HVORG sy-vline 
WA_V_TKKVHVTV_STR-TVORG sy-vline 
WA_V_TKKVHVTV_STR-BUKRS sy-vline 
WA_V_TKKVHVTV_STR-PRGRP sy-vline 
WA_V_TKKVHVTV_STR-TXT30 sy-vline 
WA_V_TKKVHVTV_STR-PNTYP sy-vline 
WA_V_TKKVHVTV_STR-BROPOSCAT sy-vline 
WA_V_TKKVHVTV_STR-BROSUBPOSCAT sy-vline 
WA_V_TKKVHVTV_STR-STAKZ sy-vline 
WA_V_TKKVHVTV_STR-XPMAN sy-vline 
WA_V_TKKVHVTV_STR-XPDREP sy-vline 
WA_V_TKKVHVTV_STR-XINVOICESUPPRESS sy-vline 
WA_V_TKKVHVTV_STR-XDUNNINGSUPPRESS sy-vline 
WA_V_TKKVHVTV_STR-XINTERESTRELEVAN sy-vline 
WA_V_TKKVHVTV_STR-XTAXRELEVANT sy-vline 
WA_V_TKKVHVTV_STR-XCHARGESUPPRESS sy-vline 
WA_V_TKKVHVTV_STR-XBILL sy-vline      INTO ld_text SEPARATED BY SPACE.

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