ABAP Select data from SAP table VEDAKOMX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VEDAKOMX
*  INTO TABLE @DATA(IT_VEDAKOMX2).
*--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_VEDAKOMX INDEX 1 INTO DATA(WA_VEDAKOMX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VEDAKOMX>-VEDA_UPDKZ = 1.
<VEDAKOMX>-VLAUFZ = 1.
<VEDAKOMX>-VLAUEZ = 1.
<VEDAKOMX>-VLAUFK = 1.
<VEDAKOMX>-VINSDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VEDAKOMX-VABNDAT, sy-vline,
  WA_VEDAKOMX-VBEGDAT, sy-vline,
  WA_VEDAKOMX-VUNTDAT, sy-vline,
  WA_VEDAKOMX-VKUESCH, sy-vline,
  WA_VEDAKOMX-VAKTSCH, sy-vline,
  WA_VEDAKOMX-VEINDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VEDAKOMX 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_VEDAKOMX 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_VEDAKOMX INTO WA_VEDAKOMX.


*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_VEDAKOMX_STR, 
VEDA_UPDKZ TYPE STRING,
VLAUFZ TYPE STRING,
VLAUEZ TYPE STRING,
VLAUFK TYPE STRING,
VINSDAT TYPE STRING,
VABNDAT TYPE STRING,
VBEGDAT TYPE STRING,
VUNTDAT TYPE STRING,
VKUESCH TYPE STRING,
VAKTSCH TYPE STRING,
VEINDAT TYPE STRING,
VWUNDAT TYPE STRING,
VKUEPAR TYPE STRING,
VKUEGRU TYPE STRING,
VENDDAT TYPE STRING,
VBELKUE TYPE STRING,
VBEDKUE TYPE STRING,
VBEGREG TYPE STRING,
VVORZEIT TYPE STRING,
VVOREIN TYPE STRING,
VDEMDAT TYPE STRING,
VENDREG TYPE STRING,
VASDA TYPE STRING,
VASDR TYPE STRING,
DUMMY_VEDA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VEDAKOMX_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_VEDAKOMX_STR-VEDA_UPDKZ sy-vline 
WA_VEDAKOMX_STR-VLAUFZ sy-vline 
WA_VEDAKOMX_STR-VLAUEZ sy-vline 
WA_VEDAKOMX_STR-VLAUFK sy-vline 
WA_VEDAKOMX_STR-VINSDAT sy-vline 
WA_VEDAKOMX_STR-VABNDAT sy-vline 
WA_VEDAKOMX_STR-VBEGDAT sy-vline 
WA_VEDAKOMX_STR-VUNTDAT sy-vline 
WA_VEDAKOMX_STR-VKUESCH sy-vline 
WA_VEDAKOMX_STR-VAKTSCH sy-vline 
WA_VEDAKOMX_STR-VEINDAT sy-vline 
WA_VEDAKOMX_STR-VWUNDAT sy-vline 
WA_VEDAKOMX_STR-VKUEPAR sy-vline 
WA_VEDAKOMX_STR-VKUEGRU sy-vline 
WA_VEDAKOMX_STR-VENDDAT sy-vline 
WA_VEDAKOMX_STR-VBELKUE sy-vline 
WA_VEDAKOMX_STR-VBEDKUE sy-vline 
WA_VEDAKOMX_STR-VBEGREG sy-vline 
WA_VEDAKOMX_STR-VVORZEIT sy-vline 
WA_VEDAKOMX_STR-VVOREIN sy-vline 
WA_VEDAKOMX_STR-VDEMDAT sy-vline 
WA_VEDAKOMX_STR-VENDREG sy-vline 
WA_VEDAKOMX_STR-VASDA sy-vline 
WA_VEDAKOMX_STR-VASDR sy-vline 
WA_VEDAKOMX_STR-DUMMY_VEDA sy-vline      INTO ld_text SEPARATED BY SPACE.

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