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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/D_WB_PDI
*  INTO TABLE @DATA(IT_/SCWM/D_WB_PDI2).
*--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/D_WB_PDI INDEX 1 INTO DATA(WA_/SCWM/D_WB_PDI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/D_WB_PDI>-MANDT = 1.
</SCWM/D_WB_PDI>-LGNUM = 1.
</SCWM/D_WB_PDI>-DOCNO = 1.
</SCWM/D_WB_PDI>-ITEMNO = 1.
</SCWM/D_WB_PDI>-GR_DOCNO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/D_WB_PDI-GR_ITEM, sy-vline,
  WA_/SCWM/D_WB_PDI-GR_DATE, sy-vline,
  WA_/SCWM/D_WB_PDI-DOCTYPE, sy-vline,
  WA_/SCWM/D_WB_PDI-GR_STATUS_H, sy-vline,
  WA_/SCWM/D_WB_PDI-GR_STATUS_I, sy-vline,
  WA_/SCWM/D_WB_PDI-DOCNO_ASN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/D_WB_PDI 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/D_WB_PDI 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/D_WB_PDI INTO WA_/SCWM/D_WB_PDI.


*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/D_WB_PDI-DOCNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/D_WB_PDI-DOCNO.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit TSTLC, internal->external for field SNAP_TIMESTAMP
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/D_WB_PDI-SNAP_TIMESTAMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/D_WB_PDI-SNAP_TIMESTAMP.
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/D_WB_PDI_STR, 
MANDT TYPE STRING,
LGNUM TYPE STRING,
DOCNO TYPE STRING,
ITEMNO TYPE STRING,
GR_DOCNO TYPE STRING,
GR_ITEM TYPE STRING,
GR_DATE TYPE STRING,
DOCTYPE TYPE STRING,
GR_STATUS_H TYPE STRING,
GR_STATUS_I TYPE STRING,
DOCNO_ASN TYPE STRING,
REFPO TYPE STRING,
SHIP_FROM_PARTY TYPE STRING,
/SCWM/PRODIND TYPE STRING,
TRANSMEANS_TYPE TYPE STRING,
/SCWM/TRMODE TYPE STRING,
PRODUCTNO TYPE STRING,
MATKL TYPE STRING,
QUAN TYPE STRING,
MEINS TYPE STRING,
QUANA TYPE STRING,
ALTME TYPE STRING,
WEIGHT TYPE STRING,
UNIT_W TYPE STRING,
VOLUM TYPE STRING,
UNIT_V TYPE STRING,
GROSS_WEIGHT TYPE STRING,
GROSS_WEIGHT_UNIT TYPE STRING,
NET_WEIGHT TYPE STRING,
NET_WEIGHT_UNIT TYPE STRING,
GROSS_VOLUME TYPE STRING,
GROSS_VOLUME_UNIT TYPE STRING,
NET_VOLUME TYPE STRING,
NET_VOLUME_UNIT TYPE STRING,
ITEMTYPE TYPE STRING,
ITEMCAT TYPE STRING,
SERVICE_LEVEL TYPE STRING,
ENTITLED TYPE STRING,
PROCTY TYPE STRING,
IS_MAIN_ITEM TYPE STRING,
/SCWM/DGIND TYPE STRING,
/SCWM/SCRAPPIND TYPE STRING,
PRIORITY TYPE STRING,
STOCK TYPE STRING,
CWREL TYPE STRING,
EEW_PDI TYPE STRING,
SNAP_TIMESTAMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/D_WB_PDI_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/D_WB_PDI_STR-MANDT sy-vline 
WA_/SCWM/D_WB_PDI_STR-LGNUM sy-vline 
WA_/SCWM/D_WB_PDI_STR-DOCNO sy-vline 
WA_/SCWM/D_WB_PDI_STR-ITEMNO sy-vline 
WA_/SCWM/D_WB_PDI_STR-GR_DOCNO sy-vline 
WA_/SCWM/D_WB_PDI_STR-GR_ITEM sy-vline 
WA_/SCWM/D_WB_PDI_STR-GR_DATE sy-vline 
WA_/SCWM/D_WB_PDI_STR-DOCTYPE sy-vline 
WA_/SCWM/D_WB_PDI_STR-GR_STATUS_H sy-vline 
WA_/SCWM/D_WB_PDI_STR-GR_STATUS_I sy-vline 
WA_/SCWM/D_WB_PDI_STR-DOCNO_ASN sy-vline 
WA_/SCWM/D_WB_PDI_STR-REFPO sy-vline 
WA_/SCWM/D_WB_PDI_STR-SHIP_FROM_PARTY sy-vline 
WA_/SCWM/D_WB_PDI_STR-/SCWM/PRODIND sy-vline 
WA_/SCWM/D_WB_PDI_STR-TRANSMEANS_TYPE sy-vline 
WA_/SCWM/D_WB_PDI_STR-/SCWM/TRMODE sy-vline 
WA_/SCWM/D_WB_PDI_STR-PRODUCTNO sy-vline 
WA_/SCWM/D_WB_PDI_STR-MATKL sy-vline 
WA_/SCWM/D_WB_PDI_STR-QUAN sy-vline 
WA_/SCWM/D_WB_PDI_STR-MEINS sy-vline 
WA_/SCWM/D_WB_PDI_STR-QUANA sy-vline 
WA_/SCWM/D_WB_PDI_STR-ALTME sy-vline 
WA_/SCWM/D_WB_PDI_STR-WEIGHT sy-vline 
WA_/SCWM/D_WB_PDI_STR-UNIT_W sy-vline 
WA_/SCWM/D_WB_PDI_STR-VOLUM sy-vline 
WA_/SCWM/D_WB_PDI_STR-UNIT_V sy-vline 
WA_/SCWM/D_WB_PDI_STR-GROSS_WEIGHT sy-vline 
WA_/SCWM/D_WB_PDI_STR-GROSS_WEIGHT_UNIT sy-vline 
WA_/SCWM/D_WB_PDI_STR-NET_WEIGHT sy-vline 
WA_/SCWM/D_WB_PDI_STR-NET_WEIGHT_UNIT sy-vline 
WA_/SCWM/D_WB_PDI_STR-GROSS_VOLUME sy-vline 
WA_/SCWM/D_WB_PDI_STR-GROSS_VOLUME_UNIT sy-vline 
WA_/SCWM/D_WB_PDI_STR-NET_VOLUME sy-vline 
WA_/SCWM/D_WB_PDI_STR-NET_VOLUME_UNIT sy-vline 
WA_/SCWM/D_WB_PDI_STR-ITEMTYPE sy-vline 
WA_/SCWM/D_WB_PDI_STR-ITEMCAT sy-vline 
WA_/SCWM/D_WB_PDI_STR-SERVICE_LEVEL sy-vline 
WA_/SCWM/D_WB_PDI_STR-ENTITLED sy-vline 
WA_/SCWM/D_WB_PDI_STR-PROCTY sy-vline 
WA_/SCWM/D_WB_PDI_STR-IS_MAIN_ITEM sy-vline 
WA_/SCWM/D_WB_PDI_STR-/SCWM/DGIND sy-vline 
WA_/SCWM/D_WB_PDI_STR-/SCWM/SCRAPPIND sy-vline 
WA_/SCWM/D_WB_PDI_STR-PRIORITY sy-vline 
WA_/SCWM/D_WB_PDI_STR-STOCK sy-vline 
WA_/SCWM/D_WB_PDI_STR-CWREL sy-vline 
WA_/SCWM/D_WB_PDI_STR-EEW_PDI sy-vline 
WA_/SCWM/D_WB_PDI_STR-SNAP_TIMESTAMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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