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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_DLV_VAL_PROD_REF
*  INTO TABLE @DATA(IT_/SCWM/S_DLV_VAL_PROD_REF2).
*--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_DLV_VAL_PROD_REF INDEX 1 INTO DATA(WA_/SCWM/S_DLV_VAL_PROD_REF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_DLV_VAL_PROD_REF>-DOCID = 1.
</SCWM/S_DLV_VAL_PROD_REF>-ITEMID = 1.
</SCWM/S_DLV_VAL_PROD_REF>-ITEMNO = 1.
</SCWM/S_DLV_VAL_PROD_REF>-PRODUCTID = 1.
</SCWM/S_DLV_VAL_PROD_REF>-ERP_BSKEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_DLV_VAL_PROD_REF-LOGSYS, sy-vline,
  WA_/SCWM/S_DLV_VAL_PROD_REF-REFDOCNO, sy-vline,
  WA_/SCWM/S_DLV_VAL_PROD_REF-ROW, sy-vline,
  WA_/SCWM/S_DLV_VAL_PROD_REF-AUFNR, sy-vline,
  WA_/SCWM/S_DLV_VAL_PROD_REF-POSNR, sy-vline,
  WA_/SCWM/S_DLV_VAL_PROD_REF-MATNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_DLV_VAL_PROD_REF 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_DLV_VAL_PROD_REF 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_DLV_VAL_PROD_REF INTO WA_/SCWM/S_DLV_VAL_PROD_REF.


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

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

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_DLV_VAL_PROD_REF-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_DLV_VAL_PROD_REF-AUFNR.
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_DLV_VAL_PROD_REF_STR, 
DOCID TYPE STRING,
ITEMID TYPE STRING,
ITEMNO TYPE STRING,
PRODUCTID TYPE STRING,
ERP_BSKEY TYPE STRING,
LOGSYS TYPE STRING,
REFDOCNO TYPE STRING,
ROW TYPE STRING,
AUFNR TYPE STRING,
POSNR TYPE STRING,
MATNR TYPE STRING,
QUANTITY TYPE STRING,
UNIT TYPE STRING,
BATCH TYPE STRING,
EXT_VAL_ONLY TYPE STRING,
CHANGED TYPE STRING,
EWM_ERROR TYPE STRING,
T_BAPIRET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_DLV_VAL_PROD_REF_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_DLV_VAL_PROD_REF_STR-DOCID sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-ITEMID sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-ITEMNO sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-PRODUCTID sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-ERP_BSKEY sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-LOGSYS sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-REFDOCNO sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-ROW sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-AUFNR sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-POSNR sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-MATNR sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-QUANTITY sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-UNIT sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-BATCH sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-EXT_VAL_ONLY sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-CHANGED sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-EWM_ERROR sy-vline 
WA_/SCWM/S_DLV_VAL_PROD_REF_STR-T_BAPIRET sy-vline      INTO ld_text SEPARATED BY SPACE.

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