ABAP Select data from SAP table IEWMHUHDR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IEWMHUHDR 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 IEWMHUHDR. 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 IEWMHUHDR 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_IEWMHUHDR TYPE STANDARD TABLE OF IEWMHUHDR,
      WA_IEWMHUHDR TYPE IEWMHUHDR,
      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: <IEWMHUHDR> TYPE IEWMHUHDR.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IEWMHUHDR
  INTO TABLE IT_IEWMHUHDR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IEWMHUHDR
*  INTO TABLE @DATA(IT_IEWMHUHDR2).
*--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_IEWMHUHDR INDEX 1 INTO DATA(WA_IEWMHUHDR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IEWMHUHDR ASSIGNING <IEWMHUHDR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IEWMHUHDR>-MANDT = 1.
<IEWMHUHDR>-HANDLINGUNITNUMBER = 1.
<IEWMHUHDR>-WAREHOUSE = 1.
<IEWMHUHDR>-HANDLINGUNITINDICATOR = 1.
<IEWMHUHDR>-HANDLINGUNITUUID = 1.

ENDLOOP.

LOOP AT IT_IEWMHUHDR INTO WA_IEWMHUHDR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IEWMHUHDR-PACKAGINGMATERIALUUID, sy-vline,
  WA_IEWMHUHDR-CREATEDBYUSER, sy-vline,
  WA_IEWMHUHDR-CREATIONDATETIME, sy-vline,
  WA_IEWMHUHDR-LASTCHANGEDBYUSER, sy-vline,
  WA_IEWMHUHDR-LASTCHANGEDATETIME, sy-vline,
  WA_IEWMHUHDR-GROSSWEIGHT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IEWMHUHDR 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_IEWMHUHDR 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_IEWMHUHDR INTO WA_IEWMHUHDR.


*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 HUID, internal->external for field HANDLINGUNITNUMBER
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_IEWMHUHDR-HANDLINGUNITNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IEWMHUHDR-HANDLINGUNITNUMBER.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PACKAGINGSPECIFICATIONLEVEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IEWMHUHDR-PACKAGINGSPECIFICATIONLEVEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IEWMHUHDR-PACKAGINGSPECIFICATIONLEVEL.
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_IEWMHUHDR_STR, 
MANDT TYPE STRING,
HANDLINGUNITNUMBER TYPE STRING,
WAREHOUSE TYPE STRING,
HANDLINGUNITINDICATOR TYPE STRING,
HANDLINGUNITUUID TYPE STRING,
PACKAGINGMATERIALUUID TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
GROSSWEIGHT TYPE STRING,
NETWEIGHT TYPE STRING,
WEIGHTUNIT TYPE STRING,
HANDLINGUNITTAREWEIGHT TYPE STRING,
HANDLINGUNITTAREWEIGHTUNIT TYPE STRING,
GROSSVOLUME TYPE STRING,
HANDLINGUNITNETVOLUME TYPE STRING,
VOLUMEUNIT TYPE STRING,
HANDLINGUNITTAREVOLUME TYPE STRING,
HANDLINGUNITTAREVOLUMEUNIT TYPE STRING,
HANDLINGUNITGROSSCAPACITY TYPE STRING,
HANDLINGUNITNETCAPACITY TYPE STRING,
HANDLINGUNITTARECAPACITY TYPE STRING,
HANDLINGUNITLENGTH TYPE STRING,
HANDLINGUNITWIDTH TYPE STRING,
HANDLINGUNITHEIGHT TYPE STRING,
UNITOFMEASUREDIMENSION TYPE STRING,
EWMDIMENSIONUNIT TYPE STRING,
HANDLINGUNITMAXWEIGHT TYPE STRING,
HANDLINGUNITWEIGHTTOLERANCE TYPE STRING,
HASVARIABLETAREWEIGHT TYPE STRING,
HANDLINGUNITMAXVOLUME TYPE STRING,
HANDLINGUNITVOLUMETOLERANCE TYPE STRING,
HANDLINGUNITISCLOSED TYPE STRING,
MAXIMUMCAPACITY TYPE STRING,
HANDLINGUNITCAPACITYTOLERANCE TYPE STRING,
HANDLINGUNITMAXLENGTH TYPE STRING,
HANDLINGUNITMAXWIDTH TYPE STRING,
HANDLINGUNITMAXHEIGHT TYPE STRING,
HANDLINGUNITMAXDIMENSIONUNIT TYPE STRING,
HANDLINGUNITTYPE TYPE STRING,
HANDLINGUNITHASAVAILQTY TYPE STRING,
HANDLINGUNITOPENTASKIND TYPE STRING,
EXTERNALSTORAGEPROCESSSTEP TYPE STRING,
PROCESSSTEPCOMPLETEDIND TYPE STRING,
STORAGEPROCESS TYPE STRING,
CONSOLIDATIONGROUP TYPE STRING,
WORKLOADIDENTIFICATION TYPE STRING,
ENTITLEDTODISPOSEPARTY TYPE STRING,
STORAGETYPE TYPE STRING,
STORAGESECTION TYPE STRING,
STORAGEBIN TYPE STRING,
WAREHOUSEORDERCREATIONRULE TYPE STRING,
HANDLINGUNITDEFECTCODE TYPE STRING,
HANDLINGUNITCONTENTIND TYPE STRING,
PACKAGINGMATERIALTYPE TYPE STRING,
HANDLINGUNITPACKINGGROUP TYPE STRING,
HANDLINGUNITSTATUS TYPE STRING,
HANDLINGUNITTOPLEVELIND TYPE STRING,
HANDLINGUNITBOTTOMIND TYPE STRING,
STATUSPROFILE TYPE STRING,
PACKAGINGSPECIFICATIONUUID TYPE STRING,
PACKAGINGSPECIFICATIONLEVEL TYPE STRING,
HANDLINGUNITOBJREFIND TYPE STRING,
HAZARDOUSSUBSTANCEINDICATOR TYPE STRING,
HANDLINGUNITLOGICALPOSITION TYPE STRING,
DISTREQUIPMENTLOGICALPOS TYPE STRING,
HANDLINGUNITAUTOCREATIONLEVEL TYPE STRING,
EWMHANDLINGUNITEXTERNALUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IEWMHUHDR_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_IEWMHUHDR_STR-MANDT sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITNUMBER sy-vline 
WA_IEWMHUHDR_STR-WAREHOUSE sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITINDICATOR sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITUUID sy-vline 
WA_IEWMHUHDR_STR-PACKAGINGMATERIALUUID sy-vline 
WA_IEWMHUHDR_STR-CREATEDBYUSER sy-vline 
WA_IEWMHUHDR_STR-CREATIONDATETIME sy-vline 
WA_IEWMHUHDR_STR-LASTCHANGEDBYUSER sy-vline 
WA_IEWMHUHDR_STR-LASTCHANGEDATETIME sy-vline 
WA_IEWMHUHDR_STR-GROSSWEIGHT sy-vline 
WA_IEWMHUHDR_STR-NETWEIGHT sy-vline 
WA_IEWMHUHDR_STR-WEIGHTUNIT sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITTAREWEIGHT sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITTAREWEIGHTUNIT sy-vline 
WA_IEWMHUHDR_STR-GROSSVOLUME sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITNETVOLUME sy-vline 
WA_IEWMHUHDR_STR-VOLUMEUNIT sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITTAREVOLUME sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITTAREVOLUMEUNIT sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITGROSSCAPACITY sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITNETCAPACITY sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITTARECAPACITY sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITLENGTH sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITWIDTH sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITHEIGHT sy-vline 
WA_IEWMHUHDR_STR-UNITOFMEASUREDIMENSION sy-vline 
WA_IEWMHUHDR_STR-EWMDIMENSIONUNIT sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITMAXWEIGHT sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITWEIGHTTOLERANCE sy-vline 
WA_IEWMHUHDR_STR-HASVARIABLETAREWEIGHT sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITMAXVOLUME sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITVOLUMETOLERANCE sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITISCLOSED sy-vline 
WA_IEWMHUHDR_STR-MAXIMUMCAPACITY sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITCAPACITYTOLERANCE sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITMAXLENGTH sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITMAXWIDTH sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITMAXHEIGHT sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITMAXDIMENSIONUNIT sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITTYPE sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITHASAVAILQTY sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITOPENTASKIND sy-vline 
WA_IEWMHUHDR_STR-EXTERNALSTORAGEPROCESSSTEP sy-vline 
WA_IEWMHUHDR_STR-PROCESSSTEPCOMPLETEDIND sy-vline 
WA_IEWMHUHDR_STR-STORAGEPROCESS sy-vline 
WA_IEWMHUHDR_STR-CONSOLIDATIONGROUP sy-vline 
WA_IEWMHUHDR_STR-WORKLOADIDENTIFICATION sy-vline 
WA_IEWMHUHDR_STR-ENTITLEDTODISPOSEPARTY sy-vline 
WA_IEWMHUHDR_STR-STORAGETYPE sy-vline 
WA_IEWMHUHDR_STR-STORAGESECTION sy-vline 
WA_IEWMHUHDR_STR-STORAGEBIN sy-vline 
WA_IEWMHUHDR_STR-WAREHOUSEORDERCREATIONRULE sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITDEFECTCODE sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITCONTENTIND sy-vline 
WA_IEWMHUHDR_STR-PACKAGINGMATERIALTYPE sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITPACKINGGROUP sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITSTATUS sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITTOPLEVELIND sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITBOTTOMIND sy-vline 
WA_IEWMHUHDR_STR-STATUSPROFILE sy-vline 
WA_IEWMHUHDR_STR-PACKAGINGSPECIFICATIONUUID sy-vline 
WA_IEWMHUHDR_STR-PACKAGINGSPECIFICATIONLEVEL sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITOBJREFIND sy-vline 
WA_IEWMHUHDR_STR-HAZARDOUSSUBSTANCEINDICATOR sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITLOGICALPOSITION sy-vline 
WA_IEWMHUHDR_STR-DISTREQUIPMENTLOGICALPOS sy-vline 
WA_IEWMHUHDR_STR-HANDLINGUNITAUTOCREATIONLEVEL sy-vline 
WA_IEWMHUHDR_STR-EWMHANDLINGUNITEXTERNALUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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