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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_ASP_DLV_CANCPICK
*  INTO TABLE @DATA(IT_/SCWM/S_ASP_DLV_CANCPICK2).
*--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_DLV_CANCPICK INDEX 1 INTO DATA(WA_/SCWM/S_ASP_DLV_CANCPICK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_ASP_DLV_CANCPICK>-CHANGE_MODE = 1.
</SCWM/S_ASP_DLV_CANCPICK>-LGNUM = 1.
</SCWM/S_ASP_DLV_CANCPICK>-DOCCAT = 1.
</SCWM/S_ASP_DLV_CANCPICK>-DOCID = 1.
</SCWM/S_ASP_DLV_CANCPICK>-ITEMID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_ASP_DLV_CANCPICK-DOCNO, sy-vline,
  WA_/SCWM/S_ASP_DLV_CANCPICK-ITEMNO, sy-vline,
  WA_/SCWM/S_ASP_DLV_CANCPICK-ITEMTYPE, sy-vline,
  WA_/SCWM/S_ASP_DLV_CANCPICK-PRODUCTNO, sy-vline,
  WA_/SCWM/S_ASP_DLV_CANCPICK-BATCHNO, sy-vline,
  WA_/SCWM/S_ASP_DLV_CANCPICK-QTY_DLV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_ASP_DLV_CANCPICK 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_DLV_CANCPICK 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_DLV_CANCPICK INTO WA_/SCWM/S_ASP_DLV_CANCPICK.


*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 DOCNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_ASP_DLV_CANCPICK-DOCNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_ASP_DLV_CANCPICK-DOCNO.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field PRODUCTNO
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_ASP_DLV_CANCPICK-PRODUCTNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_ASP_DLV_CANCPICK-PRODUCTNO.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPH0, internal->external for field WAVEITM
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_ASP_DLV_CANCPICK-WAVEITM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_ASP_DLV_CANCPICK-WAVEITM.
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_DLV_CANCPICK_STR, 
CHANGE_MODE TYPE STRING,
LGNUM TYPE STRING,
DOCCAT TYPE STRING,
DOCID TYPE STRING,
ITEMID TYPE STRING,
DOCNO TYPE STRING,
ITEMNO TYPE STRING,
ITEMTYPE TYPE STRING,
PRODUCTNO TYPE STRING,
BATCHNO TYPE STRING,
QTY_DLV TYPE STRING,
UOM_DLV TYPE STRING,
QTY_BASE TYPE STRING,
UOM_BASE TYPE STRING,
QTY_STOCK_BASE TYPE STRING,
UOM_STOCK_BASE TYPE STRING,
OPEN_PROD_WT TYPE STRING,
KZ_HU TYPE STRING,
LOADED TYPE STRING,
FD_SPLIT TYPE STRING,
OD TYPE STRING,
KIT TYPE STRING,
HIER_LEVEL TYPE STRING,
WAVEHDR TYPE STRING,
WAVEITM TYPE STRING,
PROCTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_ASP_DLV_CANCPICK_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_DLV_CANCPICK_STR-CHANGE_MODE sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-LGNUM sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-DOCCAT sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-DOCID sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-ITEMID sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-DOCNO sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-ITEMNO sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-ITEMTYPE sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-PRODUCTNO sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-BATCHNO sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-QTY_DLV sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-UOM_DLV sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-QTY_BASE sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-UOM_BASE sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-QTY_STOCK_BASE sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-UOM_STOCK_BASE sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-OPEN_PROD_WT sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-KZ_HU sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-LOADED sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-FD_SPLIT sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-OD sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-KIT sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-HIER_LEVEL sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-WAVEHDR sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-WAVEITM sy-vline 
WA_/SCWM/S_ASP_DLV_CANCPICK_STR-PROCTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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