ABAP Select data from SAP table V_TVKK into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_TVKK 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_TVKK. 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_TVKK 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_TVKK TYPE STANDARD TABLE OF V_TVKK,
      WA_V_TVKK TYPE V_TVKK,
      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_TVKK> TYPE V_TVKK.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TVKK
*  INTO TABLE @DATA(IT_V_TVKK2).
*--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_TVKK INDEX 1 INTO DATA(WA_V_TVKK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TVKK>-MANDT = 1.
<V_TVKK>-KTAAR = 1.
<V_TVKK>-VTEXT_KK = 1.
<V_TVKK>-KOPGR = 1.
<V_TVKK>-UEVOR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TVKK-NUMKE, sy-vline,
  WA_V_TVKK-PARGR, sy-vline,
  WA_V_TVKK-VTEXT_PG, sy-vline,
  WA_V_TVKK-VBTYP, sy-vline,
  WA_V_TVKK-VBOBJ, sy-vline,
  WA_V_TVKK-TRVOG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TVKK 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_TVKK 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_TVKK INTO WA_V_TVKK.


*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.

*Conversion exit AUART, internal->external for field AFART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_V_TVKK-AFART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TVKK-AFART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field AGART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_V_TVKK-AGART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TVKK-AGART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field AUART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_V_TVKK-AUART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TVKK-AUART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field GUART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_V_TVKK-GUART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TVKK-GUART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field LAART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_V_TVKK-LAART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TVKK-LAART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field REART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_V_TVKK-REART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TVKK-REART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field SOART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_V_TVKK-SOART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TVKK-SOART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field AUMA1
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_V_TVKK-AUMA1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TVKK-AUMA1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field AUMA2
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_V_TVKK-AUMA2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TVKK-AUMA2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field KPAFK
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_V_TVKK-KPAFK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TVKK-KPAFK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field FOLLOW_UP_PREF
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_V_TVKK-FOLLOW_UP_PREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TVKK-FOLLOW_UP_PREF.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_V_TVKK_STR, 
MANDT TYPE STRING,
KTAAR TYPE STRING,
VTEXT_KK TYPE STRING,
KOPGR TYPE STRING,
UEVOR TYPE STRING,
NUMKE TYPE STRING,
PARGR TYPE STRING,
VTEXT_PG TYPE STRING,
VBTYP TYPE STRING,
VBOBJ TYPE STRING,
TRVOG TYPE STRING,
KAPPL TYPE STRING,
KSCHL TYPE STRING,
KALSM TYPE STRING,
DATVO TYPE STRING,
TXTGR TYPE STRING,
AFART TYPE STRING,
AGART TYPE STRING,
AUART TYPE STRING,
GUART TYPE STRING,
LAART TYPE STRING,
REART TYPE STRING,
SOART TYPE STRING,
KTAOR TYPE STRING,
BEZOB TYPE STRING,
KWIVO TYPE STRING,
KTAFK TYPE STRING,
AUMA1 TYPE STRING,
AUMA2 TYPE STRING,
KPAFK TYPE STRING,
VTEXT_KP TYPE STRING,
STGRU TYPE STRING,
VTEXT_ST TYPE STRING,
FEHGR TYPE STRING,
BEZEI_FE TYPE STRING,
DIAFE TYPE STRING,
NUMADR TYPE STRING,
AR_OBJECT TYPE STRING,
TXT_KONSE TYPE STRING,
EXCLUDE_FC TYPE STRING,
DIRECTION TYPE STRING,
PA_PLTYPE TYPE STRING,
KTAAR_CLASS TYPE STRING,
FOLLOW_UP_PREF TYPE STRING,
KALE TYPE STRING,
ABPATTERN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TVKK_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_TVKK_STR-MANDT sy-vline 
WA_V_TVKK_STR-KTAAR sy-vline 
WA_V_TVKK_STR-VTEXT_KK sy-vline 
WA_V_TVKK_STR-KOPGR sy-vline 
WA_V_TVKK_STR-UEVOR sy-vline 
WA_V_TVKK_STR-NUMKE sy-vline 
WA_V_TVKK_STR-PARGR sy-vline 
WA_V_TVKK_STR-VTEXT_PG sy-vline 
WA_V_TVKK_STR-VBTYP sy-vline 
WA_V_TVKK_STR-VBOBJ sy-vline 
WA_V_TVKK_STR-TRVOG sy-vline 
WA_V_TVKK_STR-KAPPL sy-vline 
WA_V_TVKK_STR-KSCHL sy-vline 
WA_V_TVKK_STR-KALSM sy-vline 
WA_V_TVKK_STR-DATVO sy-vline 
WA_V_TVKK_STR-TXTGR sy-vline 
WA_V_TVKK_STR-AFART sy-vline 
WA_V_TVKK_STR-AGART sy-vline 
WA_V_TVKK_STR-AUART sy-vline 
WA_V_TVKK_STR-GUART sy-vline 
WA_V_TVKK_STR-LAART sy-vline 
WA_V_TVKK_STR-REART sy-vline 
WA_V_TVKK_STR-SOART sy-vline 
WA_V_TVKK_STR-KTAOR sy-vline 
WA_V_TVKK_STR-BEZOB sy-vline 
WA_V_TVKK_STR-KWIVO sy-vline 
WA_V_TVKK_STR-KTAFK sy-vline 
WA_V_TVKK_STR-AUMA1 sy-vline 
WA_V_TVKK_STR-AUMA2 sy-vline 
WA_V_TVKK_STR-KPAFK sy-vline 
WA_V_TVKK_STR-VTEXT_KP sy-vline 
WA_V_TVKK_STR-STGRU sy-vline 
WA_V_TVKK_STR-VTEXT_ST sy-vline 
WA_V_TVKK_STR-FEHGR sy-vline 
WA_V_TVKK_STR-BEZEI_FE sy-vline 
WA_V_TVKK_STR-DIAFE sy-vline 
WA_V_TVKK_STR-NUMADR sy-vline 
WA_V_TVKK_STR-AR_OBJECT sy-vline 
WA_V_TVKK_STR-TXT_KONSE sy-vline 
WA_V_TVKK_STR-EXCLUDE_FC sy-vline 
WA_V_TVKK_STR-DIRECTION sy-vline 
WA_V_TVKK_STR-PA_PLTYPE sy-vline 
WA_V_TVKK_STR-KTAAR_CLASS sy-vline 
WA_V_TVKK_STR-FOLLOW_UP_PREF sy-vline 
WA_V_TVKK_STR-KALE sy-vline 
WA_V_TVKK_STR-ABPATTERN sy-vline      INTO ld_text SEPARATED BY SPACE.

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