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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/V_WHOTO_O
*  INTO TABLE @DATA(IT_/SCWM/V_WHOTO_O2).
*--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/V_WHOTO_O INDEX 1 INTO DATA(WA_/SCWM/V_WHOTO_O2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/V_WHOTO_O>-MANDT = 1.
</SCWM/V_WHOTO_O>-LGNUM = 1.
</SCWM/V_WHOTO_O>-WHO = 1.
</SCWM/V_WHOTO_O>-WCR = 1.
</SCWM/V_WHOTO_O>-TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/V_WHOTO_O-HDR_PROCTY, sy-vline,
  WA_/SCWM/V_WHOTO_O-WAVE, sy-vline,
  WA_/SCWM/V_WHOTO_O-STATUS, sy-vline,
  WA_/SCWM/V_WHOTO_O-AREAWHO, sy-vline,
  WA_/SCWM/V_WHOTO_O-LGTYP, sy-vline,
  WA_/SCWM/V_WHOTO_O-LGPLA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/V_WHOTO_O 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/V_WHOTO_O 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/V_WHOTO_O INTO WA_/SCWM/V_WHOTO_O.


*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 ALPH0, internal->external for field WHO
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/V_WHOTO_O-WHO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/V_WHOTO_O-WHO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPH0, internal->external for field WAVE
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/V_WHOTO_O-WAVE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/V_WHOTO_O-WAVE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTWH, internal->external for field CREATED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTWH_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/V_WHOTO_O-CREATED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/V_WHOTO_O-CREATED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTWH, internal->external for field STARTED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTWH_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/V_WHOTO_O-STARTED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/V_WHOTO_O-STARTED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTWH, internal->external for field CONFIRMED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTWH_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/V_WHOTO_O-CONFIRMED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/V_WHOTO_O-CONFIRMED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PROCR, internal->external for field PROCESSOR
CALL FUNCTION 'CONVERSION_EXIT_PROCR_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/V_WHOTO_O-PROCESSOR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/V_WHOTO_O-PROCESSOR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTWH, internal->external for field LSD
CALL FUNCTION 'CONVERSION_EXIT_TSTWH_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/V_WHOTO_O-LSD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/V_WHOTO_O-LSD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_T
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/V_WHOTO_O-UNIT_T
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/V_WHOTO_O-UNIT_T.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTWH, internal->external for field CHANGED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTWH_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/V_WHOTO_O-CHANGED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/V_WHOTO_O-CHANGED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPH0, internal->external for field TOPWHOID
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/V_WHOTO_O-TOPWHOID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/V_WHOTO_O-TOPWHOID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPH0, internal->external for field REFWHOID
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/V_WHOTO_O-REFWHOID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/V_WHOTO_O-REFWHOID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPH0, internal->external for field TANUM
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/V_WHOTO_O-TANUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/V_WHOTO_O-TANUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HUID, internal->external for field VLENR
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/V_WHOTO_O-VLENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/V_WHOTO_O-VLENR.
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/V_WHOTO_O_STR, 
MANDT TYPE STRING,
LGNUM TYPE STRING,
WHO TYPE STRING,
WCR TYPE STRING,
TYPE TYPE STRING,
HDR_PROCTY TYPE STRING,
WAVE TYPE STRING,
STATUS TYPE STRING,
AREAWHO TYPE STRING,
LGTYP TYPE STRING,
LGPLA TYPE STRING,
CREATED_AT TYPE STRING,
CREATED_BY TYPE STRING,
QUEUE TYPE STRING,
STARTED_AT TYPE STRING,
CONFIRMED_AT TYPE STRING,
CONFIRMED_BY TYPE STRING,
PROCESSOR TYPE STRING,
RSRC TYPE STRING,
MAN_ASSIGN TYPE STRING,
FLGINV TYPE STRING,
LSD TYPE STRING,
PLANDURA TYPE STRING,
UNIT_T TYPE STRING,
CHANGED_AT TYPE STRING,
CHANGED_BY TYPE STRING,
TOPWHOID TYPE STRING,
REFWHOID TYPE STRING,
FLGWHO TYPE STRING,
FLGTO TYPE STRING,
WHOLOGNO TYPE STRING,
FLGSPLIT TYPE STRING,
HAZMAT TYPE STRING,
TANUM TYPE STRING,
VLENR TYPE STRING,
IDPLATE TYPE STRING,
QIDPLATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/V_WHOTO_O_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/V_WHOTO_O_STR-MANDT sy-vline 
WA_/SCWM/V_WHOTO_O_STR-LGNUM sy-vline 
WA_/SCWM/V_WHOTO_O_STR-WHO sy-vline 
WA_/SCWM/V_WHOTO_O_STR-WCR sy-vline 
WA_/SCWM/V_WHOTO_O_STR-TYPE sy-vline 
WA_/SCWM/V_WHOTO_O_STR-HDR_PROCTY sy-vline 
WA_/SCWM/V_WHOTO_O_STR-WAVE sy-vline 
WA_/SCWM/V_WHOTO_O_STR-STATUS sy-vline 
WA_/SCWM/V_WHOTO_O_STR-AREAWHO sy-vline 
WA_/SCWM/V_WHOTO_O_STR-LGTYP sy-vline 
WA_/SCWM/V_WHOTO_O_STR-LGPLA sy-vline 
WA_/SCWM/V_WHOTO_O_STR-CREATED_AT sy-vline 
WA_/SCWM/V_WHOTO_O_STR-CREATED_BY sy-vline 
WA_/SCWM/V_WHOTO_O_STR-QUEUE sy-vline 
WA_/SCWM/V_WHOTO_O_STR-STARTED_AT sy-vline 
WA_/SCWM/V_WHOTO_O_STR-CONFIRMED_AT sy-vline 
WA_/SCWM/V_WHOTO_O_STR-CONFIRMED_BY sy-vline 
WA_/SCWM/V_WHOTO_O_STR-PROCESSOR sy-vline 
WA_/SCWM/V_WHOTO_O_STR-RSRC sy-vline 
WA_/SCWM/V_WHOTO_O_STR-MAN_ASSIGN sy-vline 
WA_/SCWM/V_WHOTO_O_STR-FLGINV sy-vline 
WA_/SCWM/V_WHOTO_O_STR-LSD sy-vline 
WA_/SCWM/V_WHOTO_O_STR-PLANDURA sy-vline 
WA_/SCWM/V_WHOTO_O_STR-UNIT_T sy-vline 
WA_/SCWM/V_WHOTO_O_STR-CHANGED_AT sy-vline 
WA_/SCWM/V_WHOTO_O_STR-CHANGED_BY sy-vline 
WA_/SCWM/V_WHOTO_O_STR-TOPWHOID sy-vline 
WA_/SCWM/V_WHOTO_O_STR-REFWHOID sy-vline 
WA_/SCWM/V_WHOTO_O_STR-FLGWHO sy-vline 
WA_/SCWM/V_WHOTO_O_STR-FLGTO sy-vline 
WA_/SCWM/V_WHOTO_O_STR-WHOLOGNO sy-vline 
WA_/SCWM/V_WHOTO_O_STR-FLGSPLIT sy-vline 
WA_/SCWM/V_WHOTO_O_STR-HAZMAT sy-vline 
WA_/SCWM/V_WHOTO_O_STR-TANUM sy-vline 
WA_/SCWM/V_WHOTO_O_STR-VLENR sy-vline 
WA_/SCWM/V_WHOTO_O_STR-IDPLATE sy-vline 
WA_/SCWM/V_WHOTO_O_STR-QIDPLATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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