ABAP Select data from SAP table CFX_TS_BILLOFMATERIALITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CFX_TS_BILLOFMATERIALITEM
*  INTO TABLE @DATA(IT_CFX_TS_BILLOFMATERIALITEM2).
*--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_CFX_TS_BILLOFMATERIALITEM INDEX 1 INTO DATA(WA_CFX_TS_BILLOFMATERIALITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CFX_TS_BILLOFMATERIALITEM>-BILLOFMATERIALITEMIDENTIFIER = 1.
<CFX_TS_BILLOFMATERIALITEM>-BILLOFMATERIALITEMUNIQUEIDENTI = 1.
<CFX_TS_BILLOFMATERIALITEM>-DESCRIPTION = 1.
<CFX_TS_BILLOFMATERIALITEM>-GLOBALBILLOFMATERIALTYPECODE = 1.
<CFX_TS_BILLOFMATERIALITEM>-GLOBALBILLOFMATERIALTYPECODEOT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CFX_TS_BILLOFMATERIALITEM-GLOBALPRODUCTQUANTITYTYPECODE, sy-vline,
  WA_CFX_TS_BILLOFMATERIALITEM-GLOBALPRODUCTQUANTITYTYPECODEO, sy-vline,
  WA_CFX_TS_BILLOFMATERIALITEM-ISSERIALIZATIONREQUIRED, sy-vline,
  WA_CFX_TS_BILLOFMATERIALITEM-ITEMQUANTITY, sy-vline,
  WA_CFX_TS_BILLOFMATERIALITEM-NOTES, sy-vline,
  WA_CFX_TS_BILLOFMATERIALITEM-PROPRIETARYSEQUENCEIDENTIFIER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CFX_TS_BILLOFMATERIALITEM 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_CFX_TS_BILLOFMATERIALITEM 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_CFX_TS_BILLOFMATERIALITEM INTO WA_CFX_TS_BILLOFMATERIALITEM.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CFX_TS_BILLOFMATERIALITEM_STR, 
BILLOFMATERIALITEMIDENTIFIER TYPE STRING,
BILLOFMATERIALITEMUNIQUEIDENTI TYPE STRING,
DESCRIPTION TYPE STRING,
GLOBALBILLOFMATERIALTYPECODE TYPE STRING,
GLOBALBILLOFMATERIALTYPECODEOT TYPE STRING,
GLOBALPRODUCTQUANTITYTYPECODE TYPE STRING,
GLOBALPRODUCTQUANTITYTYPECODEO TYPE STRING,
ISSERIALIZATIONREQUIRED TYPE STRING,
ITEMQUANTITY TYPE STRING,
NOTES TYPE STRING,
PROPRIETARYSEQUENCEIDENTIFIER TYPE STRING,
REVISIONIDENTIFIER TYPE STRING,
ADDITIONALATTRIBUTES TYPE STRING,
REFERENCEDESIGNATORS TYPE STRING,
ATTACHMENTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CFX_TS_BILLOFMATERIALITEM_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_CFX_TS_BILLOFMATERIALITEM_STR-BILLOFMATERIALITEMIDENTIFIER sy-vline 
WA_CFX_TS_BILLOFMATERIALITEM_STR-BILLOFMATERIALITEMUNIQUEIDENTI sy-vline 
WA_CFX_TS_BILLOFMATERIALITEM_STR-DESCRIPTION sy-vline 
WA_CFX_TS_BILLOFMATERIALITEM_STR-GLOBALBILLOFMATERIALTYPECODE sy-vline 
WA_CFX_TS_BILLOFMATERIALITEM_STR-GLOBALBILLOFMATERIALTYPECODEOT sy-vline 
WA_CFX_TS_BILLOFMATERIALITEM_STR-GLOBALPRODUCTQUANTITYTYPECODE sy-vline 
WA_CFX_TS_BILLOFMATERIALITEM_STR-GLOBALPRODUCTQUANTITYTYPECODEO sy-vline 
WA_CFX_TS_BILLOFMATERIALITEM_STR-ISSERIALIZATIONREQUIRED sy-vline 
WA_CFX_TS_BILLOFMATERIALITEM_STR-ITEMQUANTITY sy-vline 
WA_CFX_TS_BILLOFMATERIALITEM_STR-NOTES sy-vline 
WA_CFX_TS_BILLOFMATERIALITEM_STR-PROPRIETARYSEQUENCEIDENTIFIER sy-vline 
WA_CFX_TS_BILLOFMATERIALITEM_STR-REVISIONIDENTIFIER sy-vline 
WA_CFX_TS_BILLOFMATERIALITEM_STR-ADDITIONALATTRIBUTES sy-vline 
WA_CFX_TS_BILLOFMATERIALITEM_STR-REFERENCEDESIGNATORS sy-vline 
WA_CFX_TS_BILLOFMATERIALITEM_STR-ATTACHMENTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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