ABAP Select data from SAP table PDM_BOMITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PDM_BOMITEM
*  INTO TABLE @DATA(IT_PDM_BOMITEM2).
*--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_PDM_BOMITEM INDEX 1 INTO DATA(WA_PDM_BOMITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PDM_BOMITEM>-RFCDEST = 1.
<PDM_BOMITEM>-OBJECT_HANDLE = 1.
<PDM_BOMITEM>-LOGSYS = 1.
<PDM_BOMITEM>-STLTY = 1.
<PDM_BOMITEM>-STLNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PDM_BOMITEM-STLKN, sy-vline,
  WA_PDM_BOMITEM-STPOZ, sy-vline,
  WA_PDM_BOMITEM-POSTP, sy-vline,
  WA_PDM_BOMITEM-ITEM_TYPE, sy-vline,
  WA_PDM_BOMITEM-POSNR, sy-vline,
  WA_PDM_BOMITEM-IDNRK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PDM_BOMITEM 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_PDM_BOMITEM 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_PDM_BOMITEM INTO WA_PDM_BOMITEM.


*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 LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PDM_BOMITEM-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDM_BOMITEM-LOGSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field STLNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_PDM_BOMITEM-STLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDM_BOMITEM-STLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field POSNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_PDM_BOMITEM-POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDM_BOMITEM-POSNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PDM_BOMITEM-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDM_BOMITEM-MEINS.
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_PDM_BOMITEM_STR, 
RFCDEST TYPE STRING,
OBJECT_HANDLE TYPE STRING,
LOGSYS TYPE STRING,
STLTY TYPE STRING,
STLNR TYPE STRING,
STLKN TYPE STRING,
STPOZ TYPE STRING,
POSTP TYPE STRING,
ITEM_TYPE TYPE STRING,
POSNR TYPE STRING,
IDNRK TYPE STRING,
DOKAR TYPE STRING,
DOKNR TYPE STRING,
DOKTL TYPE STRING,
DOKVR TYPE STRING,
CLASS TYPE STRING,
KLART TYPE STRING,
SORTF TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
BDMNG TYPE STRING,
POTX1 TYPE STRING,
POTX2 TYPE STRING,
FMENG TYPE STRING,
ERSKZ TYPE STRING,
SANFE TYPE STRING,
SANIN TYPE STRING,
SANKA TYPE STRING,
SANKO TYPE STRING,
STLKZ TYPE STRING,
SELECTED TYPE STRING,
NOT_SELECTABLE TYPE STRING,
KTEXT TYPE STRING,
CADPO TYPE STRING,
BEIKZ TYPE STRING,
CUS_STLKZ TYPE STRING,
ORIGINAL TYPE STRING,
PRJ_STLKZ TYPE STRING,
STABK TYPE STRING,
RFPNT TYPE STRING,
FRKNZ TYPE STRING,
ANNAM TYPE STRING,
DATUV TYPE STRING,
SGT_RCAT TYPE STRING,
SGT_SCAT TYPE STRING,
CUFACTOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PDM_BOMITEM_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_PDM_BOMITEM_STR-RFCDEST sy-vline 
WA_PDM_BOMITEM_STR-OBJECT_HANDLE sy-vline 
WA_PDM_BOMITEM_STR-LOGSYS sy-vline 
WA_PDM_BOMITEM_STR-STLTY sy-vline 
WA_PDM_BOMITEM_STR-STLNR sy-vline 
WA_PDM_BOMITEM_STR-STLKN sy-vline 
WA_PDM_BOMITEM_STR-STPOZ sy-vline 
WA_PDM_BOMITEM_STR-POSTP sy-vline 
WA_PDM_BOMITEM_STR-ITEM_TYPE sy-vline 
WA_PDM_BOMITEM_STR-POSNR sy-vline 
WA_PDM_BOMITEM_STR-IDNRK sy-vline 
WA_PDM_BOMITEM_STR-DOKAR sy-vline 
WA_PDM_BOMITEM_STR-DOKNR sy-vline 
WA_PDM_BOMITEM_STR-DOKTL sy-vline 
WA_PDM_BOMITEM_STR-DOKVR sy-vline 
WA_PDM_BOMITEM_STR-CLASS sy-vline 
WA_PDM_BOMITEM_STR-KLART sy-vline 
WA_PDM_BOMITEM_STR-SORTF sy-vline 
WA_PDM_BOMITEM_STR-MENGE sy-vline 
WA_PDM_BOMITEM_STR-MEINS sy-vline 
WA_PDM_BOMITEM_STR-BDMNG sy-vline 
WA_PDM_BOMITEM_STR-POTX1 sy-vline 
WA_PDM_BOMITEM_STR-POTX2 sy-vline 
WA_PDM_BOMITEM_STR-FMENG sy-vline 
WA_PDM_BOMITEM_STR-ERSKZ sy-vline 
WA_PDM_BOMITEM_STR-SANFE sy-vline 
WA_PDM_BOMITEM_STR-SANIN sy-vline 
WA_PDM_BOMITEM_STR-SANKA sy-vline 
WA_PDM_BOMITEM_STR-SANKO sy-vline 
WA_PDM_BOMITEM_STR-STLKZ sy-vline 
WA_PDM_BOMITEM_STR-SELECTED sy-vline 
WA_PDM_BOMITEM_STR-NOT_SELECTABLE sy-vline 
WA_PDM_BOMITEM_STR-KTEXT sy-vline 
WA_PDM_BOMITEM_STR-CADPO sy-vline 
WA_PDM_BOMITEM_STR-BEIKZ sy-vline 
WA_PDM_BOMITEM_STR-CUS_STLKZ sy-vline 
WA_PDM_BOMITEM_STR-ORIGINAL sy-vline 
WA_PDM_BOMITEM_STR-PRJ_STLKZ sy-vline 
WA_PDM_BOMITEM_STR-STABK sy-vline 
WA_PDM_BOMITEM_STR-RFPNT sy-vline 
WA_PDM_BOMITEM_STR-FRKNZ sy-vline 
WA_PDM_BOMITEM_STR-ANNAM sy-vline 
WA_PDM_BOMITEM_STR-DATUV sy-vline 
WA_PDM_BOMITEM_STR-SGT_RCAT sy-vline 
WA_PDM_BOMITEM_STR-SGT_SCAT sy-vline 
WA_PDM_BOMITEM_STR-CUFACTOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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