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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/POHUHDR
*  INTO TABLE @DATA(IT_/SCWM/POHUHDR2).
*--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/POHUHDR INDEX 1 INTO DATA(WA_/SCWM/POHUHDR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/POHUHDR>-MANDT = 1.
</SCWM/POHUHDR>-GUID_HU = 1.
</SCWM/POHUHDR>-GUID_PARENT = 1.
</SCWM/POHUHDR>-GUID_TOP = 1.
</SCWM/POHUHDR>-HUIDENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/POHUHDR-PMAT_GUID, sy-vline,
  WA_/SCWM/POHUHDR-CREATED_BY, sy-vline,
  WA_/SCWM/POHUHDR-CREATED_AT, sy-vline,
  WA_/SCWM/POHUHDR-ORIG_SYSTEM, sy-vline,
  WA_/SCWM/POHUHDR-CHANGED_BY, sy-vline,
  WA_/SCWM/POHUHDR-CHANGED_AT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/POHUHDR 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/POHUHDR 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/POHUHDR INTO WA_/SCWM/POHUHDR.


*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 HUIDENT
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/POHUHDR-HUIDENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/POHUHDR-HUIDENT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit PSID, internal->external for field PS_GUID
CALL FUNCTION 'CONVERSION_EXIT_PSID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/POHUHDR-PS_GUID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/POHUHDR-PS_GUID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FRD_NUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/POHUHDR-FRD_NUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/POHUHDR-FRD_NUM.
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/POHUHDR_STR, 
MANDT TYPE STRING,
GUID_HU TYPE STRING,
GUID_PARENT TYPE STRING,
GUID_TOP TYPE STRING,
HUIDENT TYPE STRING,
PMAT_GUID TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_AT TYPE STRING,
ORIG_SYSTEM TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_AT TYPE STRING,
G_WEIGHT TYPE STRING,
N_WEIGHT TYPE STRING,
UNIT_GW TYPE STRING,
T_WEIGHT TYPE STRING,
UNIT_TW TYPE STRING,
G_VOLUME TYPE STRING,
N_VOLUME TYPE STRING,
UNIT_GV TYPE STRING,
T_VOLUME TYPE STRING,
UNIT_TV TYPE STRING,
G_CAPA TYPE STRING,
N_CAPA TYPE STRING,
T_CAPA TYPE STRING,
LENGTH TYPE STRING,
WIDTH TYPE STRING,
HEIGHT TYPE STRING,
UNIT_LWH TYPE STRING,
MAX_WEIGHT TYPE STRING,
TOLW TYPE STRING,
TARE_VAR TYPE STRING,
MAX_VOLUME TYPE STRING,
TOLV TYPE STRING,
CLOSED_PACKAGE TYPE STRING,
MAX_CAPA TYPE STRING,
TOLC TYPE STRING,
MAX_LENGTH TYPE STRING,
MAX_WIDTH TYPE STRING,
MAX_HEIGHT TYPE STRING,
UNIT_MAX_LWH TYPE STRING,
LGNUM TYPE STRING,
VHI TYPE STRING,
LETYP TYPE STRING,
DSTGRP TYPE STRING,
PMTYP TYPE STRING,
PACKGR TYPE STRING,
SAPRL TYPE STRING,
TOP TYPE STRING,
BOTTOM TYPE STRING,
OBJREF TYPE STRING,
HZMT TYPE STRING,
LOGPOS TYPE STRING,
PS_GUID TYPE STRING,
CREA_STEP TYPE STRING,
TRANSIT TYPE STRING,
FLGTWEXT TYPE STRING,
FRD_NUM TYPE STRING,
FRD_ITEM TYPE STRING,
FRD_ITEM_CAT TYPE STRING,
LP_ORIENTATION TYPE STRING,
LP_ROW_OFFSET TYPE STRING,
LP_STACK_OFFSET TYPE STRING,
LP_LEVEL_OFFSET TYPE STRING,
LP_ROW_NUM TYPE STRING,
LP_STACK_NUM TYPE STRING,
LP_LEVEL_NUM TYPE STRING,
LP_SPLIT_DECK_LVL TYPE STRING,
LP_LOAD_SEQ TYPE STRING,
HUHDR_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/POHUHDR_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/POHUHDR_STR-MANDT sy-vline 
WA_/SCWM/POHUHDR_STR-GUID_HU sy-vline 
WA_/SCWM/POHUHDR_STR-GUID_PARENT sy-vline 
WA_/SCWM/POHUHDR_STR-GUID_TOP sy-vline 
WA_/SCWM/POHUHDR_STR-HUIDENT sy-vline 
WA_/SCWM/POHUHDR_STR-PMAT_GUID sy-vline 
WA_/SCWM/POHUHDR_STR-CREATED_BY sy-vline 
WA_/SCWM/POHUHDR_STR-CREATED_AT sy-vline 
WA_/SCWM/POHUHDR_STR-ORIG_SYSTEM sy-vline 
WA_/SCWM/POHUHDR_STR-CHANGED_BY sy-vline 
WA_/SCWM/POHUHDR_STR-CHANGED_AT sy-vline 
WA_/SCWM/POHUHDR_STR-G_WEIGHT sy-vline 
WA_/SCWM/POHUHDR_STR-N_WEIGHT sy-vline 
WA_/SCWM/POHUHDR_STR-UNIT_GW sy-vline 
WA_/SCWM/POHUHDR_STR-T_WEIGHT sy-vline 
WA_/SCWM/POHUHDR_STR-UNIT_TW sy-vline 
WA_/SCWM/POHUHDR_STR-G_VOLUME sy-vline 
WA_/SCWM/POHUHDR_STR-N_VOLUME sy-vline 
WA_/SCWM/POHUHDR_STR-UNIT_GV sy-vline 
WA_/SCWM/POHUHDR_STR-T_VOLUME sy-vline 
WA_/SCWM/POHUHDR_STR-UNIT_TV sy-vline 
WA_/SCWM/POHUHDR_STR-G_CAPA sy-vline 
WA_/SCWM/POHUHDR_STR-N_CAPA sy-vline 
WA_/SCWM/POHUHDR_STR-T_CAPA sy-vline 
WA_/SCWM/POHUHDR_STR-LENGTH sy-vline 
WA_/SCWM/POHUHDR_STR-WIDTH sy-vline 
WA_/SCWM/POHUHDR_STR-HEIGHT sy-vline 
WA_/SCWM/POHUHDR_STR-UNIT_LWH sy-vline 
WA_/SCWM/POHUHDR_STR-MAX_WEIGHT sy-vline 
WA_/SCWM/POHUHDR_STR-TOLW sy-vline 
WA_/SCWM/POHUHDR_STR-TARE_VAR sy-vline 
WA_/SCWM/POHUHDR_STR-MAX_VOLUME sy-vline 
WA_/SCWM/POHUHDR_STR-TOLV sy-vline 
WA_/SCWM/POHUHDR_STR-CLOSED_PACKAGE sy-vline 
WA_/SCWM/POHUHDR_STR-MAX_CAPA sy-vline 
WA_/SCWM/POHUHDR_STR-TOLC sy-vline 
WA_/SCWM/POHUHDR_STR-MAX_LENGTH sy-vline 
WA_/SCWM/POHUHDR_STR-MAX_WIDTH sy-vline 
WA_/SCWM/POHUHDR_STR-MAX_HEIGHT sy-vline 
WA_/SCWM/POHUHDR_STR-UNIT_MAX_LWH sy-vline 
WA_/SCWM/POHUHDR_STR-LGNUM sy-vline 
WA_/SCWM/POHUHDR_STR-VHI sy-vline 
WA_/SCWM/POHUHDR_STR-LETYP sy-vline 
WA_/SCWM/POHUHDR_STR-DSTGRP sy-vline 
WA_/SCWM/POHUHDR_STR-PMTYP sy-vline 
WA_/SCWM/POHUHDR_STR-PACKGR sy-vline 
WA_/SCWM/POHUHDR_STR-SAPRL sy-vline 
WA_/SCWM/POHUHDR_STR-TOP sy-vline 
WA_/SCWM/POHUHDR_STR-BOTTOM sy-vline 
WA_/SCWM/POHUHDR_STR-OBJREF sy-vline 
WA_/SCWM/POHUHDR_STR-HZMT sy-vline 
WA_/SCWM/POHUHDR_STR-LOGPOS sy-vline 
WA_/SCWM/POHUHDR_STR-PS_GUID sy-vline 
WA_/SCWM/POHUHDR_STR-CREA_STEP sy-vline 
WA_/SCWM/POHUHDR_STR-TRANSIT sy-vline 
WA_/SCWM/POHUHDR_STR-FLGTWEXT sy-vline 
WA_/SCWM/POHUHDR_STR-FRD_NUM sy-vline 
WA_/SCWM/POHUHDR_STR-FRD_ITEM sy-vline 
WA_/SCWM/POHUHDR_STR-FRD_ITEM_CAT sy-vline 
WA_/SCWM/POHUHDR_STR-LP_ORIENTATION sy-vline 
WA_/SCWM/POHUHDR_STR-LP_ROW_OFFSET sy-vline 
WA_/SCWM/POHUHDR_STR-LP_STACK_OFFSET sy-vline 
WA_/SCWM/POHUHDR_STR-LP_LEVEL_OFFSET sy-vline 
WA_/SCWM/POHUHDR_STR-LP_ROW_NUM sy-vline 
WA_/SCWM/POHUHDR_STR-LP_STACK_NUM sy-vline 
WA_/SCWM/POHUHDR_STR-LP_LEVEL_NUM sy-vline 
WA_/SCWM/POHUHDR_STR-LP_SPLIT_DECK_LVL sy-vline 
WA_/SCWM/POHUHDR_STR-LP_LOAD_SEQ sy-vline 
WA_/SCWM/POHUHDR_STR-HUHDR_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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