ABAP Select data from SAP table /SCWM/S_ASP_TODLV_OD_TOHU into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SCWM/S_ASP_TODLV_OD_TOHU 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 /SCWM/S_ASP_TODLV_OD_TOHU. 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 /SCWM/S_ASP_TODLV_OD_TOHU 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_/SCWM/S_ASP_TODLV_OD_TOHU TYPE STANDARD TABLE OF /SCWM/S_ASP_TODLV_OD_TOHU,
      WA_/SCWM/S_ASP_TODLV_OD_TOHU TYPE /SCWM/S_ASP_TODLV_OD_TOHU,
      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: </SCWM/S_ASP_TODLV_OD_TOHU> TYPE /SCWM/S_ASP_TODLV_OD_TOHU.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SCWM/S_ASP_TODLV_OD_TOHU
  INTO TABLE IT_/SCWM/S_ASP_TODLV_OD_TOHU.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_ASP_TODLV_OD_TOHU
*  INTO TABLE @DATA(IT_/SCWM/S_ASP_TODLV_OD_TOHU2).
*--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_/SCWM/S_ASP_TODLV_OD_TOHU INDEX 1 INTO DATA(WA_/SCWM/S_ASP_TODLV_OD_TOHU2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SCWM/S_ASP_TODLV_OD_TOHU ASSIGNING </SCWM/S_ASP_TODLV_OD_TOHU>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_ASP_TODLV_OD_TOHU>-HUID = 1.
</SCWM/S_ASP_TODLV_OD_TOHU>-GUID_TOHU = 1.
</SCWM/S_ASP_TODLV_OD_TOHU>-GUID_TO = 1.
</SCWM/S_ASP_TODLV_OD_TOHU>-SQUIT = 1.
</SCWM/S_ASP_TODLV_OD_TOHU>-NOROU = 1.

ENDLOOP.

LOOP AT IT_/SCWM/S_ASP_TODLV_OD_TOHU INTO WA_/SCWM/S_ASP_TODLV_OD_TOHU.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_ASP_TODLV_OD_TOHU-VLOC_TYPE, sy-vline,
  WA_/SCWM/S_ASP_TODLV_OD_TOHU-VLGNUM, sy-vline,
  WA_/SCWM/S_ASP_TODLV_OD_TOHU-VLTYPG, sy-vline,
  WA_/SCWM/S_ASP_TODLV_OD_TOHU-VLTYP, sy-vline,
  WA_/SCWM/S_ASP_TODLV_OD_TOHU-VLBER, sy-vline,
  WA_/SCWM/S_ASP_TODLV_OD_TOHU-VLPLA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_ASP_TODLV_OD_TOHU 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_/SCWM/S_ASP_TODLV_OD_TOHU 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_/SCWM/S_ASP_TODLV_OD_TOHU INTO WA_/SCWM/S_ASP_TODLV_OD_TOHU.


*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.

*Conversion exit ALPHA, internal->external for field VTU_NUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_ASP_TODLV_OD_TOHU-VTU_NUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_ASP_TODLV_OD_TOHU-VTU_NUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSPWM, internal->external for field VTSP
CALL FUNCTION 'CONVERSION_EXIT_TSPWM_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_ASP_TODLV_OD_TOHU-VTSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_ASP_TODLV_OD_TOHU-VTSP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HUID, internal->external for field VLENR
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_ASP_TODLV_OD_TOHU-VLENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_ASP_TODLV_OD_TOHU-VLENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HUID, internal->external for field NLENR
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_ASP_TODLV_OD_TOHU-NLENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_ASP_TODLV_OD_TOHU-NLENR.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/SCWM/S_ASP_TODLV_OD_TOHU_STR, 
HUID TYPE STRING,
GUID_TOHU TYPE STRING,
GUID_TO TYPE STRING,
SQUIT TYPE STRING,
NOROU TYPE STRING,
VLOC_TYPE TYPE STRING,
VLGNUM TYPE STRING,
VLTYPG TYPE STRING,
VLTYP TYPE STRING,
VLBER TYPE STRING,
VLPLA TYPE STRING,
VTU_NUM TYPE STRING,
VTU_NUM_EXT TYPE STRING,
VTSP TYPE STRING,
VTSP_TEXT TYPE STRING,
VLENR TYPE STRING,
NLOC_TYPE TYPE STRING,
NLGNUM TYPE STRING,
NLTYPG TYPE STRING,
NLTYP TYPE STRING,
NLBER TYPE STRING,
NLPLA TYPE STRING,
NLENR TYPE STRING,
REASON TYPE STRING,
REASON_TEXT TYPE STRING,
HU_MAT_TO_CREA TYPE STRING,
HU_TO_DUMMY TYPE STRING,
HU_TO_ACTIVE TYPE STRING,
TOPTO TYPE STRING,
PROCTY TYPE STRING,
PROCTY_TEXT TYPE STRING,
PROCS TYPE STRING,
PROCS_TEXT TYPE STRING,
PRCES TYPE STRING,
PRCES_TEXT TYPE STRING,
PRIORITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_ASP_TODLV_OD_TOHU_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_/SCWM/S_ASP_TODLV_OD_TOHU_STR-HUID sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-GUID_TOHU sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-GUID_TO sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-SQUIT sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-NOROU sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-VLOC_TYPE sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-VLGNUM sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-VLTYPG sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-VLTYP sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-VLBER sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-VLPLA sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-VTU_NUM sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-VTU_NUM_EXT sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-VTSP sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-VTSP_TEXT sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-VLENR sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-NLOC_TYPE sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-NLGNUM sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-NLTYPG sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-NLTYP sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-NLBER sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-NLPLA sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-NLENR sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-REASON sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-REASON_TEXT sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-HU_MAT_TO_CREA sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-HU_TO_DUMMY sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-HU_TO_ACTIVE sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-TOPTO sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-PROCTY sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-PROCTY_TEXT sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-PROCS sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-PROCS_TEXT sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-PRCES sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-PRCES_TEXT sy-vline 
WA_/SCWM/S_ASP_TODLV_OD_TOHU_STR-PRIORITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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