ABAP Select data from SAP table BAPI_ORDER_COMPONENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_ORDER_COMPONENT
*  INTO TABLE @DATA(IT_BAPI_ORDER_COMPONENT2).
*--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_BAPI_ORDER_COMPONENT INDEX 1 INTO DATA(WA_BAPI_ORDER_COMPONENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_ORDER_COMPONENT>-RESERVATION_NUMBER = 1.
<BAPI_ORDER_COMPONENT>-RESERVATION_ITEM = 1.
<BAPI_ORDER_COMPONENT>-RESERVATION_TYPE = 1.
<BAPI_ORDER_COMPONENT>-DELETION_INDICATOR = 1.
<BAPI_ORDER_COMPONENT>-MATERIAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_ORDER_COMPONENT-PROD_PLANT, sy-vline,
  WA_BAPI_ORDER_COMPONENT-STORAGE_LOCATION, sy-vline,
  WA_BAPI_ORDER_COMPONENT-SUPPLY_AREA, sy-vline,
  WA_BAPI_ORDER_COMPONENT-BATCH, sy-vline,
  WA_BAPI_ORDER_COMPONENT-SPECIAL_STOCK, sy-vline,
  WA_BAPI_ORDER_COMPONENT-REQ_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_ORDER_COMPONENT 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_BAPI_ORDER_COMPONENT 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_BAPI_ORDER_COMPONENT INTO WA_BAPI_ORDER_COMPONENT.


*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 MATN5, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_ORDER_COMPONENT-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_ORDER_COMPONENT-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit MATNL, internal->external for field MATERIAL_EXTERNAL
CALL FUNCTION 'CONVERSION_EXIT_MATNL_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_ORDER_COMPONENT-MATERIAL_EXTERNAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_ORDER_COMPONENT-MATERIAL_EXTERNAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATNW, internal->external for field MATERIAL_VERSION
CALL FUNCTION 'CONVERSION_EXIT_MATNW_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_ORDER_COMPONENT-MATERIAL_VERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_ORDER_COMPONENT-MATERIAL_VERSION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL_LONG
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_ORDER_COMPONENT-MATERIAL_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_ORDER_COMPONENT-MATERIAL_LONG.
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_BAPI_ORDER_COMPONENT_STR, 
RESERVATION_NUMBER TYPE STRING,
RESERVATION_ITEM TYPE STRING,
RESERVATION_TYPE TYPE STRING,
DELETION_INDICATOR TYPE STRING,
MATERIAL TYPE STRING,
PROD_PLANT TYPE STRING,
STORAGE_LOCATION TYPE STRING,
SUPPLY_AREA TYPE STRING,
BATCH TYPE STRING,
SPECIAL_STOCK TYPE STRING,
REQ_DATE TYPE STRING,
REQ_QUAN TYPE STRING,
BASE_UOM TYPE STRING,
BASE_UOM_ISO TYPE STRING,
WITHDRAWN_QUANTITY TYPE STRING,
ENTRY_QUANTITY TYPE STRING,
ENTRY_UOM TYPE STRING,
ENTRY_UOM_ISO TYPE STRING,
ORDER_NUMBER TYPE STRING,
MOVEMENT_TYPE TYPE STRING,
ITEM_CATEGORY TYPE STRING,
ITEM_NUMBER TYPE STRING,
SEQUENCE TYPE STRING,
OPERATION TYPE STRING,
BACKFLUSH TYPE STRING,
VALUATION_SPEC_STOCK TYPE STRING,
SYSTEM_STATUS TYPE STRING,
MATERIAL_DESCRIPTION TYPE STRING,
COMMITED_QUANTITY TYPE STRING,
SHORTAGE TYPE STRING,
PURCHASE_REQ_NO TYPE STRING,
PURCHASE_REQ_ITEM TYPE STRING,
MATERIAL_EXTERNAL TYPE STRING,
MATERIAL_GUID TYPE STRING,
MATERIAL_VERSION TYPE STRING,
REQ_SEGMENT TYPE STRING,
STOCK_SEGMENT TYPE STRING,
MATERIAL_LONG TYPE STRING,
REQ_SEG_LONG TYPE STRING,
STK_SEG_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_ORDER_COMPONENT_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_BAPI_ORDER_COMPONENT_STR-RESERVATION_NUMBER sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-RESERVATION_ITEM sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-RESERVATION_TYPE sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-DELETION_INDICATOR sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-MATERIAL sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-PROD_PLANT sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-STORAGE_LOCATION sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-SUPPLY_AREA sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-BATCH sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-SPECIAL_STOCK sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-REQ_DATE sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-REQ_QUAN sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-BASE_UOM sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-BASE_UOM_ISO sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-WITHDRAWN_QUANTITY sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-ENTRY_QUANTITY sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-ENTRY_UOM sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-ENTRY_UOM_ISO sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-ORDER_NUMBER sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-MOVEMENT_TYPE sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-ITEM_CATEGORY sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-ITEM_NUMBER sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-SEQUENCE sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-OPERATION sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-BACKFLUSH sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-VALUATION_SPEC_STOCK sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-SYSTEM_STATUS sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-MATERIAL_DESCRIPTION sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-COMMITED_QUANTITY sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-SHORTAGE sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-PURCHASE_REQ_NO sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-PURCHASE_REQ_ITEM sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-MATERIAL_EXTERNAL sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-MATERIAL_GUID sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-MATERIAL_VERSION sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-REQ_SEGMENT sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-STOCK_SEGMENT sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-MATERIAL_LONG sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-REQ_SEG_LONG sy-vline 
WA_BAPI_ORDER_COMPONENT_STR-STK_SEG_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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