ABAP Select data from SAP table VTVFGKO into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VTVFGKO 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 VTVFGKO. 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 VTVFGKO 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_VTVFGKO TYPE STANDARD TABLE OF VTVFGKO,
      WA_VTVFGKO TYPE VTVFGKO,
      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: <VTVFGKO> TYPE VTVFGKO.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTVFGKO
*  INTO TABLE @DATA(IT_VTVFGKO2).
*--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_VTVFGKO INDEX 1 INTO DATA(WA_VTVFGKO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTVFGKO>-GFORM = 1.
<VTVFGKO>-GDETAIL = 1.
<VTVFGKO>-KATEKZ = 1.
<VTVFGKO>-AGGRKZ = 1.
<VTVFGKO>-DBLFZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTVFGKO-DELFZ, sy-vline,
  WA_VTVFGKO-SFGTYP, sy-vline,
  WA_VTVFGKO-SNOTTYPE, sy-vline,
  WA_VTVFGKO-SBWHR, sy-vline,
  WA_VTVFGKO-BNOMINAL, sy-vline,
  WA_VTVFGKO-ASTUECK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTVFGKO 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_VTVFGKO 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_VTVFGKO INTO WA_VTVFGKO.


*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 ALPHA, internal->external for field RANL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VTVFGKO-RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTVFGKO-RANL.
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_VTVFGKO_STR, 
GFORM TYPE STRING,
GDETAIL TYPE STRING,
KATEKZ TYPE STRING,
AGGRKZ TYPE STRING,
DBLFZ TYPE STRING,
DELFZ TYPE STRING,
SFGTYP TYPE STRING,
SNOTTYPE TYPE STRING,
SBWHR TYPE STRING,
BNOMINAL TYPE STRING,
ASTUECK TYPE STRING,
WGSCHFT1 TYPE STRING,
WGSCHFT2 TYPE STRING,
BNOMI1 TYPE STRING,
BNOMI2 TYPE STRING,
BSALDO TYPE STRING,
DEFSZ TYPE STRING,
RANL TYPE STRING,
RHANDPL TYPE STRING,
IDX TYPE STRING,
IDXVAL TYPE STRING,
BPIDX TYPE STRING,
SPIDX TYPE STRING,
KKURSWP TYPE STRING,
APKENNZ TYPE STRING,
PF_WAERS TYPE STRING,
PF_ZINS TYPE STRING,
PF_ZIREF TYPE STRING,
SSHLNG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTVFGKO_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_VTVFGKO_STR-GFORM sy-vline 
WA_VTVFGKO_STR-GDETAIL sy-vline 
WA_VTVFGKO_STR-KATEKZ sy-vline 
WA_VTVFGKO_STR-AGGRKZ sy-vline 
WA_VTVFGKO_STR-DBLFZ sy-vline 
WA_VTVFGKO_STR-DELFZ sy-vline 
WA_VTVFGKO_STR-SFGTYP sy-vline 
WA_VTVFGKO_STR-SNOTTYPE sy-vline 
WA_VTVFGKO_STR-SBWHR sy-vline 
WA_VTVFGKO_STR-BNOMINAL sy-vline 
WA_VTVFGKO_STR-ASTUECK sy-vline 
WA_VTVFGKO_STR-WGSCHFT1 sy-vline 
WA_VTVFGKO_STR-WGSCHFT2 sy-vline 
WA_VTVFGKO_STR-BNOMI1 sy-vline 
WA_VTVFGKO_STR-BNOMI2 sy-vline 
WA_VTVFGKO_STR-BSALDO sy-vline 
WA_VTVFGKO_STR-DEFSZ sy-vline 
WA_VTVFGKO_STR-RANL sy-vline 
WA_VTVFGKO_STR-RHANDPL sy-vline 
WA_VTVFGKO_STR-IDX sy-vline 
WA_VTVFGKO_STR-IDXVAL sy-vline 
WA_VTVFGKO_STR-BPIDX sy-vline 
WA_VTVFGKO_STR-SPIDX sy-vline 
WA_VTVFGKO_STR-KKURSWP sy-vline 
WA_VTVFGKO_STR-APKENNZ sy-vline 
WA_VTVFGKO_STR-PF_WAERS sy-vline 
WA_VTVFGKO_STR-PF_ZINS sy-vline 
WA_VTVFGKO_STR-PF_ZIREF sy-vline 
WA_VTVFGKO_STR-SSHLNG sy-vline      INTO ld_text SEPARATED BY SPACE.

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