ABAP Select data from SAP table TDS_VEDA_COM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_VEDA_COM
*  INTO TABLE @DATA(IT_TDS_VEDA_COM2).
*--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_TDS_VEDA_COM INDEX 1 INTO DATA(WA_TDS_VEDA_COM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_VEDA_COM>-HANDLE = 1.
<TDS_VEDA_COM>-VBEGDAT = 1.
<TDS_VEDA_COM>-VENDDAT = 1.
<TDS_VEDA_COM>-VBEGREG = 1.
<TDS_VEDA_COM>-VENDREG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_VEDA_COM-VLAUFK, sy-vline,
  WA_TDS_VEDA_COM-VLAUFZ, sy-vline,
  WA_TDS_VEDA_COM-VLAUEZ, sy-vline,
  WA_TDS_VEDA_COM-VINSDAT, sy-vline,
  WA_TDS_VEDA_COM-VABNDAT, sy-vline,
  WA_TDS_VEDA_COM-VUNTDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_VEDA_COM 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_TDS_VEDA_COM 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_TDS_VEDA_COM INTO WA_TDS_VEDA_COM.


*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_TDS_VEDA_COM_STR, 
HANDLE TYPE STRING,
VBEGDAT TYPE STRING,
VENDDAT TYPE STRING,
VBEGREG TYPE STRING,
VENDREG TYPE STRING,
VLAUFK TYPE STRING,
VLAUFZ TYPE STRING,
VLAUEZ TYPE STRING,
VINSDAT TYPE STRING,
VABNDAT TYPE STRING,
VUNTDAT TYPE STRING,
VDEMDAT TYPE STRING,
VAKTSCH TYPE STRING,
VASDA TYPE STRING,
VASDR TYPE STRING,
VKUESCH TYPE STRING,
VKUEGRU TYPE STRING,
VEINDAT TYPE STRING,
VWUNDAT TYPE STRING,
VBELKUE TYPE STRING,
VKUEPAR TYPE STRING,
VBEDKUE TYPE STRING,
HANDLE_I TYPE STRING,
VBEGDAT_I TYPE STRING,
VENDDAT_I TYPE STRING,
VBEGREG_I TYPE STRING,
VENDREG_I TYPE STRING,
VLAUFK_I TYPE STRING,
VLAUFZ_I TYPE STRING,
VLAUEZ_I TYPE STRING,
VINSDAT_I TYPE STRING,
VABNDAT_I TYPE STRING,
VUNTDAT_I TYPE STRING,
VDEMDAT_I TYPE STRING,
VAKTSCH_I TYPE STRING,
VASDA_I TYPE STRING,
VASDR_I TYPE STRING,
VKUESCH_I TYPE STRING,
VKUEGRU_I TYPE STRING,
VEINDAT_I TYPE STRING,
VWUNDAT_I TYPE STRING,
VBELKUE_I TYPE STRING,
VKUEPAR_I TYPE STRING,
VBEDKUE_I TYPE STRING,
HANDLE_R TYPE STRING,
VBEGREG_T_R TYPE STRING,
VENDREG_T_R TYPE STRING,
VLAUFK_T_R TYPE STRING,
VLAUEZ_T_R TYPE STRING,
VAKTSCH_T_R TYPE STRING,
VASDR_T_R TYPE STRING,
VKUESCH_T_R TYPE STRING,
VKUEGRU_T_R TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_VEDA_COM_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_TDS_VEDA_COM_STR-HANDLE sy-vline 
WA_TDS_VEDA_COM_STR-VBEGDAT sy-vline 
WA_TDS_VEDA_COM_STR-VENDDAT sy-vline 
WA_TDS_VEDA_COM_STR-VBEGREG sy-vline 
WA_TDS_VEDA_COM_STR-VENDREG sy-vline 
WA_TDS_VEDA_COM_STR-VLAUFK sy-vline 
WA_TDS_VEDA_COM_STR-VLAUFZ sy-vline 
WA_TDS_VEDA_COM_STR-VLAUEZ sy-vline 
WA_TDS_VEDA_COM_STR-VINSDAT sy-vline 
WA_TDS_VEDA_COM_STR-VABNDAT sy-vline 
WA_TDS_VEDA_COM_STR-VUNTDAT sy-vline 
WA_TDS_VEDA_COM_STR-VDEMDAT sy-vline 
WA_TDS_VEDA_COM_STR-VAKTSCH sy-vline 
WA_TDS_VEDA_COM_STR-VASDA sy-vline 
WA_TDS_VEDA_COM_STR-VASDR sy-vline 
WA_TDS_VEDA_COM_STR-VKUESCH sy-vline 
WA_TDS_VEDA_COM_STR-VKUEGRU sy-vline 
WA_TDS_VEDA_COM_STR-VEINDAT sy-vline 
WA_TDS_VEDA_COM_STR-VWUNDAT sy-vline 
WA_TDS_VEDA_COM_STR-VBELKUE sy-vline 
WA_TDS_VEDA_COM_STR-VKUEPAR sy-vline 
WA_TDS_VEDA_COM_STR-VBEDKUE sy-vline 
WA_TDS_VEDA_COM_STR-HANDLE_I sy-vline 
WA_TDS_VEDA_COM_STR-VBEGDAT_I sy-vline 
WA_TDS_VEDA_COM_STR-VENDDAT_I sy-vline 
WA_TDS_VEDA_COM_STR-VBEGREG_I sy-vline 
WA_TDS_VEDA_COM_STR-VENDREG_I sy-vline 
WA_TDS_VEDA_COM_STR-VLAUFK_I sy-vline 
WA_TDS_VEDA_COM_STR-VLAUFZ_I sy-vline 
WA_TDS_VEDA_COM_STR-VLAUEZ_I sy-vline 
WA_TDS_VEDA_COM_STR-VINSDAT_I sy-vline 
WA_TDS_VEDA_COM_STR-VABNDAT_I sy-vline 
WA_TDS_VEDA_COM_STR-VUNTDAT_I sy-vline 
WA_TDS_VEDA_COM_STR-VDEMDAT_I sy-vline 
WA_TDS_VEDA_COM_STR-VAKTSCH_I sy-vline 
WA_TDS_VEDA_COM_STR-VASDA_I sy-vline 
WA_TDS_VEDA_COM_STR-VASDR_I sy-vline 
WA_TDS_VEDA_COM_STR-VKUESCH_I sy-vline 
WA_TDS_VEDA_COM_STR-VKUEGRU_I sy-vline 
WA_TDS_VEDA_COM_STR-VEINDAT_I sy-vline 
WA_TDS_VEDA_COM_STR-VWUNDAT_I sy-vline 
WA_TDS_VEDA_COM_STR-VBELKUE_I sy-vline 
WA_TDS_VEDA_COM_STR-VKUEPAR_I sy-vline 
WA_TDS_VEDA_COM_STR-VBEDKUE_I sy-vline 
WA_TDS_VEDA_COM_STR-HANDLE_R sy-vline 
WA_TDS_VEDA_COM_STR-VBEGREG_T_R sy-vline 
WA_TDS_VEDA_COM_STR-VENDREG_T_R sy-vline 
WA_TDS_VEDA_COM_STR-VLAUFK_T_R sy-vline 
WA_TDS_VEDA_COM_STR-VLAUEZ_T_R sy-vline 
WA_TDS_VEDA_COM_STR-VAKTSCH_T_R sy-vline 
WA_TDS_VEDA_COM_STR-VASDR_T_R sy-vline 
WA_TDS_VEDA_COM_STR-VKUESCH_T_R sy-vline 
WA_TDS_VEDA_COM_STR-VKUEGRU_T_R sy-vline      INTO ld_text SEPARATED BY SPACE.

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