ABAP Select data from SAP table TDS_VCFG_COMR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TDS_VCFG_COMR 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_VCFG_COMR. 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_VCFG_COMR 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_VCFG_COMR TYPE STANDARD TABLE OF TDS_VCFG_COMR,
      WA_TDS_VCFG_COMR TYPE TDS_VCFG_COMR,
      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_VCFG_COMR> TYPE TDS_VCFG_COMR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_VCFG_COMR
*  INTO TABLE @DATA(IT_TDS_VCFG_COMR2).
*--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_VCFG_COMR INDEX 1 INTO DATA(WA_TDS_VCFG_COMR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_VCFG_COMR>-HANDLE = 1.
<TDS_VCFG_COMR>-ATNAM_T = 1.
<TDS_VCFG_COMR>-ATVAL_T = 1.
<TDS_VCFG_COMR>-ATEIN = 1.
<TDS_VCFG_COMR>-ATSON = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_VCFG_COMR-ATVIE, sy-vline,
  WA_TDS_VCFG_COMR-ATINT, sy-vline,
  WA_TDS_VCFG_COMR-ATFOR, sy-vline,
  WA_TDS_VCFG_COMR-ATKLE, sy-vline,
  WA_TDS_VCFG_COMR-ATAUT, sy-vline,
  WA_TDS_VCFG_COMR-VKOND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_VCFG_COMR 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_VCFG_COMR 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_VCFG_COMR INTO WA_TDS_VCFG_COMR.


*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_VCFG_COMR_STR, 
HANDLE TYPE STRING,
ATNAM_T TYPE STRING,
ATVAL_T TYPE STRING,
ATEIN TYPE STRING,
ATSON TYPE STRING,
ATVIE TYPE STRING,
ATINT TYPE STRING,
ATFOR TYPE STRING,
ATKLE TYPE STRING,
ATAUT TYPE STRING,
VKOND TYPE STRING,
PRICE TYPE STRING,
ATINN TYPE STRING,
ANZST TYPE STRING,
ANZDZ TYPE STRING,
ATFLV TYPE STRING,
ATFLB TYPE STRING,
ATCOD TYPE STRING,
ATINC TYPE STRING,
ADDVAL TYPE STRING,
FLASS TYPE STRING,
INCONS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_VCFG_COMR_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_VCFG_COMR_STR-HANDLE sy-vline 
WA_TDS_VCFG_COMR_STR-ATNAM_T sy-vline 
WA_TDS_VCFG_COMR_STR-ATVAL_T sy-vline 
WA_TDS_VCFG_COMR_STR-ATEIN sy-vline 
WA_TDS_VCFG_COMR_STR-ATSON sy-vline 
WA_TDS_VCFG_COMR_STR-ATVIE sy-vline 
WA_TDS_VCFG_COMR_STR-ATINT sy-vline 
WA_TDS_VCFG_COMR_STR-ATFOR sy-vline 
WA_TDS_VCFG_COMR_STR-ATKLE sy-vline 
WA_TDS_VCFG_COMR_STR-ATAUT sy-vline 
WA_TDS_VCFG_COMR_STR-VKOND sy-vline 
WA_TDS_VCFG_COMR_STR-PRICE sy-vline 
WA_TDS_VCFG_COMR_STR-ATINN sy-vline 
WA_TDS_VCFG_COMR_STR-ANZST sy-vline 
WA_TDS_VCFG_COMR_STR-ANZDZ sy-vline 
WA_TDS_VCFG_COMR_STR-ATFLV sy-vline 
WA_TDS_VCFG_COMR_STR-ATFLB sy-vline 
WA_TDS_VCFG_COMR_STR-ATCOD sy-vline 
WA_TDS_VCFG_COMR_STR-ATINC sy-vline 
WA_TDS_VCFG_COMR_STR-ADDVAL sy-vline 
WA_TDS_VCFG_COMR_STR-FLASS sy-vline 
WA_TDS_VCFG_COMR_STR-INCONS sy-vline      INTO ld_text SEPARATED BY SPACE.

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