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

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SCWM/BAPIDLVHDUNHDR 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/BAPIDLVHDUNHDR. 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/BAPIDLVHDUNHDR 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/BAPIDLVHDUNHDR TYPE STANDARD TABLE OF /SCWM/BAPIDLVHDUNHDR,
      WA_/SCWM/BAPIDLVHDUNHDR TYPE /SCWM/BAPIDLVHDUNHDR,
      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/BAPIDLVHDUNHDR> TYPE /SCWM/BAPIDLVHDUNHDR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/BAPIDLVHDUNHDR
*  INTO TABLE @DATA(IT_/SCWM/BAPIDLVHDUNHDR2).
*--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/BAPIDLVHDUNHDR INDEX 1 INTO DATA(WA_/SCWM/BAPIDLVHDUNHDR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/BAPIDLVHDUNHDR>-DELIV_NUMB = 1.
</SCWM/BAPIDLVHDUNHDR>-HDL_UNIT = 1.
</SCWM/BAPIDLVHDUNHDR>-HDL_UNIT_EXID = 1.
</SCWM/BAPIDLVHDUNHDR>-HDL_UNIT_EXID_TY = 1.
</SCWM/BAPIDLVHDUNHDR>-TOTAL_WGHT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/BAPIDLVHDUNHDR-LOAD_WGHT, sy-vline,
  WA_/SCWM/BAPIDLVHDUNHDR-ALLOWED_WGHT, sy-vline,
  WA_/SCWM/BAPIDLVHDUNHDR-UNIT_OF_WT, sy-vline,
  WA_/SCWM/BAPIDLVHDUNHDR-UNIT_OF_WT_ISO, sy-vline,
  WA_/SCWM/BAPIDLVHDUNHDR-TARE_WGHT, sy-vline,
  WA_/SCWM/BAPIDLVHDUNHDR-TARE_UNIT_WT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/BAPIDLVHDUNHDR 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/BAPIDLVHDUNHDR 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/BAPIDLVHDUNHDR INTO WA_/SCWM/BAPIDLVHDUNHDR.


*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 BASE_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/BAPIDLVHDUNHDR-BASE_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/BAPIDLVHDUNHDR-BASE_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOG_SYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/BAPIDLVHDUNHDR-LOG_SYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/BAPIDLVHDUNHDR-LOG_SYSTEM.
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/BAPIDLVHDUNHDR_STR, 
DELIV_NUMB TYPE STRING,
HDL_UNIT TYPE STRING,
HDL_UNIT_EXID TYPE STRING,
HDL_UNIT_EXID_TY TYPE STRING,
TOTAL_WGHT TYPE STRING,
LOAD_WGHT TYPE STRING,
ALLOWED_WGHT TYPE STRING,
UNIT_OF_WT TYPE STRING,
UNIT_OF_WT_ISO TYPE STRING,
TARE_WGHT TYPE STRING,
TARE_UNIT_WT TYPE STRING,
TARE_UNIT_WT_ISO TYPE STRING,
TOTAL_VOL TYPE STRING,
LOAD_VOL TYPE STRING,
ALLOWEDVOL TYPE STRING,
VOLUMEUNIT TYPE STRING,
VOLUMEUNIT_ISO TYPE STRING,
TARE_VOL TYPE STRING,
TARE_UNI_VOL TYPE STRING,
TARE_UNI_VOL_ISO TYPE STRING,
SORT_FLD TYPE STRING,
HDL_UNIT_GRP1 TYPE STRING,
HDL_UNIT_GRP2 TYPE STRING,
HDL_UNIT_GRP3 TYPE STRING,
HDL_UNIT_GRP4 TYPE STRING,
HDL_UNIT_GRP5 TYPE STRING,
SHIP_MAT TYPE STRING,
LENGTH TYPE STRING,
WIDTH TYPE STRING,
HEIGHT TYPE STRING,
UNIT_DIM TYPE STRING,
UNIT_DIM_ISO TYPE STRING,
WT_TOL_LT TYPE STRING,
VOL_TOL_LT TYPE STRING,
BASE_UOM TYPE STRING,
BASE_UOM_ISO TYPE STRING,
CONTENT TYPE STRING,
SH_MAT_TYP TYPE STRING,
MAT_GRP_SM TYPE STRING,
PLANT TYPE STRING,
LGTH_LOAD TYPE STRING,
LOAD_LGT_UNIT TYPE STRING,
LOAD_LGT_UNIT_ISO TYPE STRING,
TRAVL_TIME TYPE STRING,
DRIVTIMEUN TYPE STRING,
DRIVTIMEUN_ISO TYPE STRING,
DISTANCE TYPE STRING,
UNIT_OF_DIST TYPE STRING,
UNIT_OF_DIST_ISO TYPE STRING,
STGE_LOC TYPE STRING,
WT_VOL_FIX TYPE STRING,
SHIP_MAT_EXTERNAL TYPE STRING,
SHIP_MAT_GUID TYPE STRING,
SHIP_MAT_VERSION TYPE STRING,
PACKNR_CONV TYPE STRING,
PACKSTATUS_LOCAL TYPE STRING,
ALLOWEDLOAD TYPE STRING,
LABELTYPE TYPE STRING,
HDL_UNIT_GUID TYPE STRING,
LOG_SYSTEM TYPE STRING,
LOG_POSITION TYPE STRING,
CHECK_NUMBER TYPE STRING,
SHIP_MAT_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/BAPIDLVHDUNHDR_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/BAPIDLVHDUNHDR_STR-DELIV_NUMB sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-HDL_UNIT sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-HDL_UNIT_EXID sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-HDL_UNIT_EXID_TY sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-TOTAL_WGHT sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-LOAD_WGHT sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-ALLOWED_WGHT sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-UNIT_OF_WT sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-UNIT_OF_WT_ISO sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-TARE_WGHT sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-TARE_UNIT_WT sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-TARE_UNIT_WT_ISO sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-TOTAL_VOL sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-LOAD_VOL sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-ALLOWEDVOL sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-VOLUMEUNIT sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-VOLUMEUNIT_ISO sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-TARE_VOL sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-TARE_UNI_VOL sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-TARE_UNI_VOL_ISO sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-SORT_FLD sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-HDL_UNIT_GRP1 sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-HDL_UNIT_GRP2 sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-HDL_UNIT_GRP3 sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-HDL_UNIT_GRP4 sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-HDL_UNIT_GRP5 sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-SHIP_MAT sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-LENGTH sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-WIDTH sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-HEIGHT sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-UNIT_DIM sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-UNIT_DIM_ISO sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-WT_TOL_LT sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-VOL_TOL_LT sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-BASE_UOM sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-BASE_UOM_ISO sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-CONTENT sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-SH_MAT_TYP sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-MAT_GRP_SM sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-PLANT sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-LGTH_LOAD sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-LOAD_LGT_UNIT sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-LOAD_LGT_UNIT_ISO sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-TRAVL_TIME sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-DRIVTIMEUN sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-DRIVTIMEUN_ISO sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-DISTANCE sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-UNIT_OF_DIST sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-UNIT_OF_DIST_ISO sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-STGE_LOC sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-WT_VOL_FIX sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-SHIP_MAT_EXTERNAL sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-SHIP_MAT_GUID sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-SHIP_MAT_VERSION sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-PACKNR_CONV sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-PACKSTATUS_LOCAL sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-ALLOWEDLOAD sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-LABELTYPE sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-HDL_UNIT_GUID sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-LOG_SYSTEM sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-LOG_POSITION sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-CHECK_NUMBER sy-vline 
WA_/SCWM/BAPIDLVHDUNHDR_STR-SHIP_MAT_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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