ABAP Select data from SAP table TDS_HVSTAT_COMV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TDS_HVSTAT_COMV 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_HVSTAT_COMV. 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_HVSTAT_COMV 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_HVSTAT_COMV TYPE STANDARD TABLE OF TDS_HVSTAT_COMV,
      WA_TDS_HVSTAT_COMV TYPE TDS_HVSTAT_COMV,
      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_HVSTAT_COMV> TYPE TDS_HVSTAT_COMV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_HVSTAT_COMV
*  INTO TABLE @DATA(IT_TDS_HVSTAT_COMV2).
*--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_HVSTAT_COMV INDEX 1 INTO DATA(WA_TDS_HVSTAT_COMV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_HVSTAT_COMV>-HANDLE = 1.
<TDS_HVSTAT_COMV>-ABSTK = 1.
<TDS_HVSTAT_COMV>-BESTK = 1.
<TDS_HVSTAT_COMV>-BUCHK = 1.
<TDS_HVSTAT_COMV>-CMGST = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_HVSTAT_COMV-CMPS0, sy-vline,
  WA_TDS_HVSTAT_COMV-CMPS1, sy-vline,
  WA_TDS_HVSTAT_COMV-CMPS2, sy-vline,
  WA_TDS_HVSTAT_COMV-CMPSA, sy-vline,
  WA_TDS_HVSTAT_COMV-CMPSB, sy-vline,
  WA_TDS_HVSTAT_COMV-CMPSC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_HVSTAT_COMV 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_HVSTAT_COMV 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_HVSTAT_COMV INTO WA_TDS_HVSTAT_COMV.


*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_HVSTAT_COMV_STR, 
HANDLE TYPE STRING,
ABSTK TYPE STRING,
BESTK TYPE STRING,
BUCHK TYPE STRING,
CMGST TYPE STRING,
CMPS0 TYPE STRING,
CMPS1 TYPE STRING,
CMPS2 TYPE STRING,
CMPSA TYPE STRING,
CMPSB TYPE STRING,
CMPSC TYPE STRING,
CMPSD TYPE STRING,
CMPSE TYPE STRING,
CMPSF TYPE STRING,
CMPSG TYPE STRING,
CMPSH TYPE STRING,
CMPSI TYPE STRING,
CMPSJ TYPE STRING,
CMPSK TYPE STRING,
CMPSL TYPE STRING,
CMPSM TYPE STRING,
COSTA TYPE STRING,
DCSTK TYPE STRING,
FKIVK TYPE STRING,
FKSAK TYPE STRING,
FKSTK TYPE STRING,
FSSTK TYPE STRING,
GBSTK TYPE STRING,
KOQUK TYPE STRING,
KOSTK TYPE STRING,
LFGSK TYPE STRING,
LFSTK TYPE STRING,
LSSTK TYPE STRING,
LVSTK TYPE STRING,
PDSTK TYPE STRING,
PKSTK TYPE STRING,
RFGSK TYPE STRING,
RFSTK TYPE STRING,
SPSTG TYPE STRING,
TRSTA TYPE STRING,
UVALL TYPE STRING,
UVALS TYPE STRING,
UVFAK TYPE STRING,
UVFAS TYPE STRING,
UVVLK TYPE STRING,
UVVLS TYPE STRING,
WBSTK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_HVSTAT_COMV_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_HVSTAT_COMV_STR-HANDLE sy-vline 
WA_TDS_HVSTAT_COMV_STR-ABSTK sy-vline 
WA_TDS_HVSTAT_COMV_STR-BESTK sy-vline 
WA_TDS_HVSTAT_COMV_STR-BUCHK sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMGST sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMPS0 sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMPS1 sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMPS2 sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMPSA sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMPSB sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMPSC sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMPSD sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMPSE sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMPSF sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMPSG sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMPSH sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMPSI sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMPSJ sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMPSK sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMPSL sy-vline 
WA_TDS_HVSTAT_COMV_STR-CMPSM sy-vline 
WA_TDS_HVSTAT_COMV_STR-COSTA sy-vline 
WA_TDS_HVSTAT_COMV_STR-DCSTK sy-vline 
WA_TDS_HVSTAT_COMV_STR-FKIVK sy-vline 
WA_TDS_HVSTAT_COMV_STR-FKSAK sy-vline 
WA_TDS_HVSTAT_COMV_STR-FKSTK sy-vline 
WA_TDS_HVSTAT_COMV_STR-FSSTK sy-vline 
WA_TDS_HVSTAT_COMV_STR-GBSTK sy-vline 
WA_TDS_HVSTAT_COMV_STR-KOQUK sy-vline 
WA_TDS_HVSTAT_COMV_STR-KOSTK sy-vline 
WA_TDS_HVSTAT_COMV_STR-LFGSK sy-vline 
WA_TDS_HVSTAT_COMV_STR-LFSTK sy-vline 
WA_TDS_HVSTAT_COMV_STR-LSSTK sy-vline 
WA_TDS_HVSTAT_COMV_STR-LVSTK sy-vline 
WA_TDS_HVSTAT_COMV_STR-PDSTK sy-vline 
WA_TDS_HVSTAT_COMV_STR-PKSTK sy-vline 
WA_TDS_HVSTAT_COMV_STR-RFGSK sy-vline 
WA_TDS_HVSTAT_COMV_STR-RFSTK sy-vline 
WA_TDS_HVSTAT_COMV_STR-SPSTG sy-vline 
WA_TDS_HVSTAT_COMV_STR-TRSTA sy-vline 
WA_TDS_HVSTAT_COMV_STR-UVALL sy-vline 
WA_TDS_HVSTAT_COMV_STR-UVALS sy-vline 
WA_TDS_HVSTAT_COMV_STR-UVFAK sy-vline 
WA_TDS_HVSTAT_COMV_STR-UVFAS sy-vline 
WA_TDS_HVSTAT_COMV_STR-UVVLK sy-vline 
WA_TDS_HVSTAT_COMV_STR-UVVLS sy-vline 
WA_TDS_HVSTAT_COMV_STR-WBSTK sy-vline      INTO ld_text SEPARATED BY SPACE.

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