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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_WIP_POHUITM
*  INTO TABLE @DATA(IT_/SCWM/S_WIP_POHUITM2).
*--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_WIP_POHUITM INDEX 1 INTO DATA(WA_/SCWM/S_WIP_POHUITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_WIP_POHUITM>-LGNUM = 1.
</SCWM/S_WIP_POHUITM>-HUIDENT = 1.
</SCWM/S_WIP_POHUITM>-GUID_PARENT = 1.
</SCWM/S_WIP_POHUITM>-GUID_STOCK = 1.
</SCWM/S_WIP_POHUITM>-QUAN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_WIP_POHUITM-MEINS, sy-vline,
  WA_/SCWM/S_WIP_POHUITM-MATID, sy-vline,
  WA_/SCWM/S_WIP_POHUITM-MATNR, sy-vline,
  WA_/SCWM/S_WIP_POHUITM-MAKTX, sy-vline,
  WA_/SCWM/S_WIP_POHUITM-QUANA, sy-vline,
  WA_/SCWM/S_WIP_POHUITM-ALTME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_WIP_POHUITM 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_WIP_POHUITM 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_WIP_POHUITM INTO WA_/SCWM/S_WIP_POHUITM.


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

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

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field UNIT_LWH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_WIP_POHUITM-UNIT_LWH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_WIP_POHUITM-UNIT_LWH.
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_WIP_POHUITM_STR, 
LGNUM TYPE STRING,
HUIDENT TYPE STRING,
GUID_PARENT TYPE STRING,
GUID_STOCK TYPE STRING,
QUAN TYPE STRING,
MEINS TYPE STRING,
MATID TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
QUANA TYPE STRING,
ALTME TYPE STRING,
WEIGHT TYPE STRING,
UNIT_W TYPE STRING,
VOLUM TYPE STRING,
UNIT_V TYPE STRING,
CAPA TYPE STRING,
CAT TYPE STRING,
CAT_TXT TYPE STRING,
BATCHID TYPE STRING,
CHARG TYPE STRING,
BRESTR TYPE STRING,
COO TYPE STRING,
OWNER TYPE STRING,
ENTITLED TYPE STRING,
SHIPTO TYPE STRING,
SHIPTO_DESC TYPE STRING,
STOCK_USAGE TYPE STRING,
STOCK_DOCCAT TYPE STRING,
STOCK_DOCNO TYPE STRING,
STOCK_ITMNO TYPE STRING,
VFDAT TYPE STRING,
DSTGRP TYPE STRING,
DOCCAT TYPE STRING,
DOCNO TYPE STRING,
ITMNO TYPE STRING,
LAYER_ID TYPE STRING,
AAREA_CAP TYPE STRING,
LENGTH TYPE STRING,
WIDTH TYPE STRING,
HEIGHT TYPE STRING,
UNIT_LWH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_WIP_POHUITM_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_WIP_POHUITM_STR-LGNUM sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-HUIDENT sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-GUID_PARENT sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-GUID_STOCK sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-QUAN sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-MEINS sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-MATID sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-MATNR sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-MAKTX sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-QUANA sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-ALTME sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-WEIGHT sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-UNIT_W sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-VOLUM sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-UNIT_V sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-CAPA sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-CAT sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-CAT_TXT sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-BATCHID sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-CHARG sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-BRESTR sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-COO sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-OWNER sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-ENTITLED sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-SHIPTO sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-SHIPTO_DESC sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-STOCK_USAGE sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-STOCK_DOCCAT sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-STOCK_DOCNO sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-STOCK_ITMNO sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-VFDAT sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-DSTGRP sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-DOCCAT sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-DOCNO sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-ITMNO sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-LAYER_ID sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-AAREA_CAP sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-LENGTH sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-WIDTH sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-HEIGHT sy-vline 
WA_/SCWM/S_WIP_POHUITM_STR-UNIT_LWH sy-vline      INTO ld_text SEPARATED BY SPACE.

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