ABAP Select data from SAP table DPWTY_S_VELO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DPWTY_S_VELO
*  INTO TABLE @DATA(IT_DPWTY_S_VELO2).
*--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_DPWTY_S_VELO INDEX 1 INTO DATA(WA_DPWTY_S_VELO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DPWTY_S_VELO>-VGUID = 1.
<DPWTY_S_VELO>-MATNR = 1.
<DPWTY_S_VELO>-ARKTX = 1.
<DPWTY_S_VELO>-LIFNR = 1.
<DPWTY_S_VELO>-CHARG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DPWTY_S_VELO-EQUNR, sy-vline,
  WA_DPWTY_S_VELO-WERKS, sy-vline,
  WA_DPWTY_S_VELO-LGORT, sy-vline,
  WA_DPWTY_S_VELO-BWTAR, sy-vline,
  WA_DPWTY_S_VELO-CUOBJ, sy-vline,
  WA_DPWTY_S_VELO-KUNNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DPWTY_S_VELO 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_DPWTY_S_VELO 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_DPWTY_S_VELO INTO WA_DPWTY_S_VELO.


*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_DPWTY_S_VELO_STR, 
VGUID TYPE STRING,
MATNR TYPE STRING,
ARKTX TYPE STRING,
LIFNR TYPE STRING,
CHARG TYPE STRING,
EQUNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
BWTAR TYPE STRING,
CUOBJ TYPE STRING,
KUNNR TYPE STRING,
VHVIN TYPE STRING,
VHCEX TYPE STRING,
GPRICE TYPE STRING,
GPRICECUKY TYPE STRING,
CDTSP TYPE STRING,
PSTSP TYPE STRING,
PDTSP TYPE STRING,
ERNAM TYPE STRING,
VHUSG TYPE STRING,
CMPGN TYPE STRING,
PCOUNT TYPE STRING,
PCOUNT_U TYPE STRING,
IMMATDATE TYPE STRING,
USED_VEHICLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DPWTY_S_VELO_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_DPWTY_S_VELO_STR-VGUID sy-vline 
WA_DPWTY_S_VELO_STR-MATNR sy-vline 
WA_DPWTY_S_VELO_STR-ARKTX sy-vline 
WA_DPWTY_S_VELO_STR-LIFNR sy-vline 
WA_DPWTY_S_VELO_STR-CHARG sy-vline 
WA_DPWTY_S_VELO_STR-EQUNR sy-vline 
WA_DPWTY_S_VELO_STR-WERKS sy-vline 
WA_DPWTY_S_VELO_STR-LGORT sy-vline 
WA_DPWTY_S_VELO_STR-BWTAR sy-vline 
WA_DPWTY_S_VELO_STR-CUOBJ sy-vline 
WA_DPWTY_S_VELO_STR-KUNNR sy-vline 
WA_DPWTY_S_VELO_STR-VHVIN sy-vline 
WA_DPWTY_S_VELO_STR-VHCEX sy-vline 
WA_DPWTY_S_VELO_STR-GPRICE sy-vline 
WA_DPWTY_S_VELO_STR-GPRICECUKY sy-vline 
WA_DPWTY_S_VELO_STR-CDTSP sy-vline 
WA_DPWTY_S_VELO_STR-PSTSP sy-vline 
WA_DPWTY_S_VELO_STR-PDTSP sy-vline 
WA_DPWTY_S_VELO_STR-ERNAM sy-vline 
WA_DPWTY_S_VELO_STR-VHUSG sy-vline 
WA_DPWTY_S_VELO_STR-CMPGN sy-vline 
WA_DPWTY_S_VELO_STR-PCOUNT sy-vline 
WA_DPWTY_S_VELO_STR-PCOUNT_U sy-vline 
WA_DPWTY_S_VELO_STR-IMMATDATE sy-vline 
WA_DPWTY_S_VELO_STR-USED_VEHICLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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