ABAP Select data from SAP table CBILLOFMATERIAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CBILLOFMATERIAL
*  INTO TABLE @DATA(IT_CBILLOFMATERIAL2).
*--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_CBILLOFMATERIAL INDEX 1 INTO DATA(WA_CBILLOFMATERIAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CBILLOFMATERIAL>-MANDT = 1.
<CBILLOFMATERIAL>-DRAFTUUID = 1.
<CBILLOFMATERIAL>-BILLOFMATERIALHEADERUUID = 1.
<CBILLOFMATERIAL>-BILLOFMATERIALUUID = 1.
<CBILLOFMATERIAL>-MATERIAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CBILLOFMATERIAL-PLANT, sy-vline,
  WA_CBILLOFMATERIAL-BILLOFMATERIALVARIANTUSAGE, sy-vline,
  WA_CBILLOFMATERIAL-BILLOFMATERIALCATEGORY, sy-vline,
  WA_CBILLOFMATERIAL-BILLOFMATERIAL, sy-vline,
  WA_CBILLOFMATERIAL-BILLOFMATERIALVARIANT, sy-vline,
  WA_CBILLOFMATERIAL-MATFROMLOTSIZEQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CBILLOFMATERIAL 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_CBILLOFMATERIAL 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_CBILLOFMATERIAL INTO WA_CBILLOFMATERIAL.


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

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

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

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

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

*Conversion exit CUNIT, internal->external for field BOMHEADERBASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CBILLOFMATERIAL-BOMHEADERBASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CBILLOFMATERIAL-BOMHEADERBASEUNIT.
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_CBILLOFMATERIAL_STR, 
MANDT TYPE STRING,
DRAFTUUID TYPE STRING,
BILLOFMATERIALHEADERUUID TYPE STRING,
BILLOFMATERIALUUID TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
BILLOFMATERIALVARIANTUSAGE TYPE STRING,
BILLOFMATERIALCATEGORY TYPE STRING,
BILLOFMATERIAL TYPE STRING,
BILLOFMATERIALVARIANT TYPE STRING,
MATFROMLOTSIZEQUANTITY TYPE STRING,
MATTOLOTSIZEQUANTITY TYPE STRING,
BOMGROUP TYPE STRING,
BILLOFMATERIALVERSION TYPE STRING,
BOMVERSIONSTATUS TYPE STRING,
BOMVERSIONSTATUSDESCRIPTION TYPE STRING,
ISVERSIONBILLOFMATERIAL TYPE STRING,
ISLATESTBOMVERSION TYPE STRING,
ISMULTIPLEBOMALT TYPE STRING,
BOMHEADERINTERNALCHANGECOUNT TYPE STRING,
ISCONFIGUREDMATERIAL TYPE STRING,
BOMPRIORITIZEDVERSION TYPE STRING,
BOMEXPLOSIONAPPLICATION TYPE STRING,
BOMUSAGEPRIORITY TYPE STRING,
BILLOFMATERIALAUTHSNGRP TYPE STRING,
BOMTECHNICALTYPE TYPE STRING,
BOMHEADERTEXT TYPE STRING,
BOMALTERNATIVETEXT TYPE STRING,
BILLOFMATERIALSTATUS TYPE STRING,
HEADERVALIDITYSTARTDATE TYPE STRING,
HEADERVALIDITYENDDATE TYPE STRING,
ENGINEERINGCHANGEDOCUMENT TYPE STRING,
CHGTOENGINEERINGCHGDOCUMENT TYPE STRING,
ISMARKEDFORDELETION TYPE STRING,
ISALE TYPE STRING,
BOMHEADERBASEUNIT TYPE STRING,
BOMHEADERQUANTITYINBASEUNIT TYPE STRING,
RECORDCREATIONDATE TYPE STRING,
LASTCHANGEDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
BOMISTOBEDELETED TYPE STRING,
DOCUMENTISCREATEDBYCAD TYPE STRING,
LABORATORYORDESIGNOFFICE TYPE STRING,
ISHEADERDRAFTMODIFIED TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
ISACTIVEENTITY TYPE STRING,
HASACTIVEENTITY TYPE STRING,
HASDRAFTENTITY TYPE STRING,
HEADERATTACHMENTKEY TYPE STRING,
UXFCMATERIAL TYPE STRING,
UXFCPLANT TYPE STRING,
UXFCBILLOFMATERIALVARIANTUSAGE TYPE STRING,
UXFCBILLOFMATERIALCATEGORY TYPE STRING,
UXFCBILLOFMATERIALVARIANT TYPE STRING,
UXFCMATFROMLOTSIZEQUANTITY TYPE STRING,
UXFCMATTOLOTSIZEQUANTITY TYPE STRING,
UXFCHEADERVALIDITYSTARTDATE TYPE STRING,
UXFCENGINEERINGCHANGEDOCUMENT TYPE STRING,
UXFCBILLOFMATERIALVERSION TYPE STRING,
UXFCBOMVERSIONSTATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CBILLOFMATERIAL_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_CBILLOFMATERIAL_STR-MANDT sy-vline 
WA_CBILLOFMATERIAL_STR-DRAFTUUID sy-vline 
WA_CBILLOFMATERIAL_STR-BILLOFMATERIALHEADERUUID sy-vline 
WA_CBILLOFMATERIAL_STR-BILLOFMATERIALUUID sy-vline 
WA_CBILLOFMATERIAL_STR-MATERIAL sy-vline 
WA_CBILLOFMATERIAL_STR-PLANT sy-vline 
WA_CBILLOFMATERIAL_STR-BILLOFMATERIALVARIANTUSAGE sy-vline 
WA_CBILLOFMATERIAL_STR-BILLOFMATERIALCATEGORY sy-vline 
WA_CBILLOFMATERIAL_STR-BILLOFMATERIAL sy-vline 
WA_CBILLOFMATERIAL_STR-BILLOFMATERIALVARIANT sy-vline 
WA_CBILLOFMATERIAL_STR-MATFROMLOTSIZEQUANTITY sy-vline 
WA_CBILLOFMATERIAL_STR-MATTOLOTSIZEQUANTITY sy-vline 
WA_CBILLOFMATERIAL_STR-BOMGROUP sy-vline 
WA_CBILLOFMATERIAL_STR-BILLOFMATERIALVERSION sy-vline 
WA_CBILLOFMATERIAL_STR-BOMVERSIONSTATUS sy-vline 
WA_CBILLOFMATERIAL_STR-BOMVERSIONSTATUSDESCRIPTION sy-vline 
WA_CBILLOFMATERIAL_STR-ISVERSIONBILLOFMATERIAL sy-vline 
WA_CBILLOFMATERIAL_STR-ISLATESTBOMVERSION sy-vline 
WA_CBILLOFMATERIAL_STR-ISMULTIPLEBOMALT sy-vline 
WA_CBILLOFMATERIAL_STR-BOMHEADERINTERNALCHANGECOUNT sy-vline 
WA_CBILLOFMATERIAL_STR-ISCONFIGUREDMATERIAL sy-vline 
WA_CBILLOFMATERIAL_STR-BOMPRIORITIZEDVERSION sy-vline 
WA_CBILLOFMATERIAL_STR-BOMEXPLOSIONAPPLICATION sy-vline 
WA_CBILLOFMATERIAL_STR-BOMUSAGEPRIORITY sy-vline 
WA_CBILLOFMATERIAL_STR-BILLOFMATERIALAUTHSNGRP sy-vline 
WA_CBILLOFMATERIAL_STR-BOMTECHNICALTYPE sy-vline 
WA_CBILLOFMATERIAL_STR-BOMHEADERTEXT sy-vline 
WA_CBILLOFMATERIAL_STR-BOMALTERNATIVETEXT sy-vline 
WA_CBILLOFMATERIAL_STR-BILLOFMATERIALSTATUS sy-vline 
WA_CBILLOFMATERIAL_STR-HEADERVALIDITYSTARTDATE sy-vline 
WA_CBILLOFMATERIAL_STR-HEADERVALIDITYENDDATE sy-vline 
WA_CBILLOFMATERIAL_STR-ENGINEERINGCHANGEDOCUMENT sy-vline 
WA_CBILLOFMATERIAL_STR-CHGTOENGINEERINGCHGDOCUMENT sy-vline 
WA_CBILLOFMATERIAL_STR-ISMARKEDFORDELETION sy-vline 
WA_CBILLOFMATERIAL_STR-ISALE sy-vline 
WA_CBILLOFMATERIAL_STR-BOMHEADERBASEUNIT sy-vline 
WA_CBILLOFMATERIAL_STR-BOMHEADERQUANTITYINBASEUNIT sy-vline 
WA_CBILLOFMATERIAL_STR-RECORDCREATIONDATE sy-vline 
WA_CBILLOFMATERIAL_STR-LASTCHANGEDATE sy-vline 
WA_CBILLOFMATERIAL_STR-CREATEDBYUSER sy-vline 
WA_CBILLOFMATERIAL_STR-LASTCHANGEDBYUSER sy-vline 
WA_CBILLOFMATERIAL_STR-BOMISTOBEDELETED sy-vline 
WA_CBILLOFMATERIAL_STR-DOCUMENTISCREATEDBYCAD sy-vline 
WA_CBILLOFMATERIAL_STR-LABORATORYORDESIGNOFFICE sy-vline 
WA_CBILLOFMATERIAL_STR-ISHEADERDRAFTMODIFIED sy-vline 
WA_CBILLOFMATERIAL_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_CBILLOFMATERIAL_STR-ISACTIVEENTITY sy-vline 
WA_CBILLOFMATERIAL_STR-HASACTIVEENTITY sy-vline 
WA_CBILLOFMATERIAL_STR-HASDRAFTENTITY sy-vline 
WA_CBILLOFMATERIAL_STR-HEADERATTACHMENTKEY sy-vline 
WA_CBILLOFMATERIAL_STR-UXFCMATERIAL sy-vline 
WA_CBILLOFMATERIAL_STR-UXFCPLANT sy-vline 
WA_CBILLOFMATERIAL_STR-UXFCBILLOFMATERIALVARIANTUSAGE sy-vline 
WA_CBILLOFMATERIAL_STR-UXFCBILLOFMATERIALCATEGORY sy-vline 
WA_CBILLOFMATERIAL_STR-UXFCBILLOFMATERIALVARIANT sy-vline 
WA_CBILLOFMATERIAL_STR-UXFCMATFROMLOTSIZEQUANTITY sy-vline 
WA_CBILLOFMATERIAL_STR-UXFCMATTOLOTSIZEQUANTITY sy-vline 
WA_CBILLOFMATERIAL_STR-UXFCHEADERVALIDITYSTARTDATE sy-vline 
WA_CBILLOFMATERIAL_STR-UXFCENGINEERINGCHANGEDOCUMENT sy-vline 
WA_CBILLOFMATERIAL_STR-UXFCBILLOFMATERIALVERSION sy-vline 
WA_CBILLOFMATERIAL_STR-UXFCBOMVERSIONSTATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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