ABAP Select data from SAP table /SCWM/S_ASPN_TO_HU_ITEM 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_ASPN_TO_HU_ITEM 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_ASPN_TO_HU_ITEM. 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_ASPN_TO_HU_ITEM 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_ASPN_TO_HU_ITEM TYPE STANDARD TABLE OF /SCWM/S_ASPN_TO_HU_ITEM,
      WA_/SCWM/S_ASPN_TO_HU_ITEM TYPE /SCWM/S_ASPN_TO_HU_ITEM,
      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_ASPN_TO_HU_ITEM> TYPE /SCWM/S_ASPN_TO_HU_ITEM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_ASPN_TO_HU_ITEM
*  INTO TABLE @DATA(IT_/SCWM/S_ASPN_TO_HU_ITEM2).
*--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_ASPN_TO_HU_ITEM INDEX 1 INTO DATA(WA_/SCWM/S_ASPN_TO_HU_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_ASPN_TO_HU_ITEM>-VLPLA = 1.
</SCWM/S_ASPN_TO_HU_ITEM>-NLPLA = 1.
</SCWM/S_ASPN_TO_HU_ITEM>-G_WEIGHT = 1.
</SCWM/S_ASPN_TO_HU_ITEM>-N_WEIGHT = 1.
</SCWM/S_ASPN_TO_HU_ITEM>-CP1_UNIT_GW_1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_ASPN_TO_HU_ITEM-UNIT_GW, sy-vline,
  WA_/SCWM/S_ASPN_TO_HU_ITEM-G_VOLUME, sy-vline,
  WA_/SCWM/S_ASPN_TO_HU_ITEM-N_VOLUME, sy-vline,
  WA_/SCWM/S_ASPN_TO_HU_ITEM-CP1_UNIT_GV_1, sy-vline,
  WA_/SCWM/S_ASPN_TO_HU_ITEM-UNIT_GV, sy-vline,
  WA_/SCWM/S_ASPN_TO_HU_ITEM-LENGTH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_ASPN_TO_HU_ITEM 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_ASPN_TO_HU_ITEM 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_ASPN_TO_HU_ITEM INTO WA_/SCWM/S_ASPN_TO_HU_ITEM.


*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 CUNIT, internal->external for field CP1_UNIT_GW_1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_ASPN_TO_HU_ITEM-CP1_UNIT_GW_1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_ASPN_TO_HU_ITEM-CP1_UNIT_GW_1.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field CP1_UNIT_GV_1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_ASPN_TO_HU_ITEM-CP1_UNIT_GV_1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_ASPN_TO_HU_ITEM-CP1_UNIT_GV_1.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MDLPD, internal->external for field MATID
CALL FUNCTION 'CONVERSION_EXIT_MDLPD_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_ASPN_TO_HU_ITEM-MATID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_ASPN_TO_HU_ITEM-MATID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BPMAP, internal->external for field OWNER
CALL FUNCTION 'CONVERSION_EXIT_BPMAP_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_ASPN_TO_HU_ITEM-OWNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_ASPN_TO_HU_ITEM-OWNER.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_ASPN_TO_HU_ITEM-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_ASPN_TO_HU_ITEM-MEINS.
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_ASPN_TO_HU_ITEM_STR, 
VLPLA TYPE STRING,
NLPLA TYPE STRING,
G_WEIGHT TYPE STRING,
N_WEIGHT TYPE STRING,
CP1_UNIT_GW_1 TYPE STRING,
UNIT_GW TYPE STRING,
G_VOLUME TYPE STRING,
N_VOLUME TYPE STRING,
CP1_UNIT_GV_1 TYPE STRING,
UNIT_GV TYPE STRING,
LENGTH TYPE STRING,
WIDTH TYPE STRING,
HEIGHT TYPE STRING,
UNIT_LWH TYPE STRING,
LETYP TYPE STRING,
MAX_WEIGHT TYPE STRING,
MAX_VOLUME TYPE STRING,
TOLV TYPE STRING,
T_WEIGHT TYPE STRING,
TOLW TYPE STRING,
T_VOLUME TYPE STRING,
CLOSED_PACKAGE TYPE STRING,
PMTYP TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_AT TYPE STRING,
CREATED_BY TYPE STRING,
MATID TYPE STRING,
BATCHID TYPE STRING,
CAT TYPE STRING,
STOCK_DOCCAT TYPE STRING,
STOCK_DOCNO TYPE STRING,
STOCK_ITMNO TYPE STRING,
OWNER TYPE STRING,
OWNER_ROLE TYPE STRING,
ENTITLED TYPE STRING,
ENTITLED_ROLE TYPE STRING,
ALTME TYPE STRING,
QUAN TYPE STRING,
MAKTX TYPE STRING,
MEINS TYPE STRING,
CREA_DATE TYPE STRING,
CREA_TIME TYPE STRING,
CHANG_DATE TYPE STRING,
CHANG_TIME TYPE STRING,
SYSTEM_STATUS TYPE STRING,
USER_STATUS TYPE STRING,
CHARG TYPE STRING,
PROCPRFL TYPE STRING,
AVAIL_QUAN TYPE STRING,
HNDLCODE TYPE STRING,
PILFERABLE TYPE STRING,
HAZMAT TYPE STRING,
ENVREL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_ASPN_TO_HU_ITEM_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_ASPN_TO_HU_ITEM_STR-VLPLA sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-NLPLA sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-G_WEIGHT sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-N_WEIGHT sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-CP1_UNIT_GW_1 sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-UNIT_GW sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-G_VOLUME sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-N_VOLUME sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-CP1_UNIT_GV_1 sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-UNIT_GV sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-LENGTH sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-WIDTH sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-HEIGHT sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-UNIT_LWH sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-LETYP sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-MAX_WEIGHT sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-MAX_VOLUME sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-TOLV sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-T_WEIGHT sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-TOLW sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-T_VOLUME sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-CLOSED_PACKAGE sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-PMTYP sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-CHANGED_BY sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-CHANGED_AT sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-CREATED_BY sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-MATID sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-BATCHID sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-CAT sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-STOCK_DOCCAT sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-STOCK_DOCNO sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-STOCK_ITMNO sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-OWNER sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-OWNER_ROLE sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-ENTITLED sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-ENTITLED_ROLE sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-ALTME sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-QUAN sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-MAKTX sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-MEINS sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-CREA_DATE sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-CREA_TIME sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-CHANG_DATE sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-CHANG_TIME sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-SYSTEM_STATUS sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-USER_STATUS sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-CHARG sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-PROCPRFL sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-AVAIL_QUAN sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-HNDLCODE sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-PILFERABLE sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-HAZMAT sy-vline 
WA_/SCWM/S_ASPN_TO_HU_ITEM_STR-ENVREL sy-vline      INTO ld_text SEPARATED BY SPACE.

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