ABAP Select data from SAP table BAPIITEMEX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPIITEMEX
*  INTO TABLE @DATA(IT_BAPIITEMEX2).
*--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_BAPIITEMEX INDEX 1 INTO DATA(WA_BAPIITEMEX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPIITEMEX>-ITM_NUMBER = 1.
<BAPIITEMEX>-PO_ITM_NO = 1.
<BAPIITEMEX>-MATERIAL = 1.
<BAPIITEMEX>-MAT_ENTRD = 1.
<BAPIITEMEX>-SHORT_TEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPIITEMEX-NET_VALUE, sy-vline,
  WA_BAPIITEMEX-CURRENCY, sy-vline,
  WA_BAPIITEMEX-SUBTOTAL_1, sy-vline,
  WA_BAPIITEMEX-SUBTOTAL_2, sy-vline,
  WA_BAPIITEMEX-SUBTOTAL_3, sy-vline,
  WA_BAPIITEMEX-SUBTOTAL_4, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPIITEMEX 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_BAPIITEMEX 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_BAPIITEMEX INTO WA_BAPIITEMEX.


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

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

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

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

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

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

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

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

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

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

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

*Conversion exit MATN1, internal->external for field MAT_ENTRD_LONG
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_BAPIITEMEX-MAT_ENTRD_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIITEMEX-MAT_ENTRD_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_BAPIITEMEX_STR, 
ITM_NUMBER TYPE STRING,
PO_ITM_NO TYPE STRING,
MATERIAL TYPE STRING,
MAT_ENTRD TYPE STRING,
SHORT_TEXT TYPE STRING,
NET_VALUE TYPE STRING,
CURRENCY TYPE STRING,
SUBTOTAL_1 TYPE STRING,
SUBTOTAL_2 TYPE STRING,
SUBTOTAL_3 TYPE STRING,
SUBTOTAL_4 TYPE STRING,
SUBTOTAL_5 TYPE STRING,
SUBTOTAL_6 TYPE STRING,
SALES_UNIT TYPE STRING,
QTY_REQ_DT TYPE STRING,
DLV_DATE TYPE STRING,
REPL_TIME TYPE STRING,
CONFIGURED TYPE STRING,
PURCH_NO_C TYPE STRING,
PURCH_DATE TYPE STRING,
PO_METHOD TYPE STRING,
REF_1 TYPE STRING,
PURCH_NO_S TYPE STRING,
PO_DAT_S TYPE STRING,
PO_METH_S TYPE STRING,
REF_1_S TYPE STRING,
PO_ITM_NO_S TYPE STRING,
NET_VALUE1 TYPE STRING,
CURR_ISO TYPE STRING,
S_UNIT_ISO TYPE STRING,
REQ_QTY TYPE STRING,
PLANT TYPE STRING,
TX_DOC_CUR TYPE STRING,
MAT_EXT TYPE STRING,
MAT_GUID TYPE STRING,
MAT_VERS TYPE STRING,
MAT_E_EXT TYPE STRING,
MAT_E_GUID TYPE STRING,
MAT_E_VERS TYPE STRING,
TARGET_QTY TYPE STRING,
TARGET_QU TYPE STRING,
T_UNIT_ISO TYPE STRING,
ITEM_CATEG TYPE STRING,
SHIP_POINT TYPE STRING,
HG_LV_ITEM TYPE STRING,
CUST_MAT TYPE STRING,
PART_DLV TYPE STRING,
REASON_REJ TYPE STRING,
BILL_BLOCK TYPE STRING,
STGE_LOC TYPE STRING,
PROD_HIER TYPE STRING,
MATL_GROUP TYPE STRING,
SUBTOTAL1 TYPE STRING,
SUBTOTAL2 TYPE STRING,
SUBTOTAL3 TYPE STRING,
SUBTOTAL4 TYPE STRING,
SUBTOTAL5 TYPE STRING,
SUBTOTAL6 TYPE STRING,
MATERIAL_LONG TYPE STRING,
MAT_ENTRD_LONG TYPE STRING,
REQ_SEGMENT TYPE STRING,
REQ_SEG_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPIITEMEX_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_BAPIITEMEX_STR-ITM_NUMBER sy-vline 
WA_BAPIITEMEX_STR-PO_ITM_NO sy-vline 
WA_BAPIITEMEX_STR-MATERIAL sy-vline 
WA_BAPIITEMEX_STR-MAT_ENTRD sy-vline 
WA_BAPIITEMEX_STR-SHORT_TEXT sy-vline 
WA_BAPIITEMEX_STR-NET_VALUE sy-vline 
WA_BAPIITEMEX_STR-CURRENCY sy-vline 
WA_BAPIITEMEX_STR-SUBTOTAL_1 sy-vline 
WA_BAPIITEMEX_STR-SUBTOTAL_2 sy-vline 
WA_BAPIITEMEX_STR-SUBTOTAL_3 sy-vline 
WA_BAPIITEMEX_STR-SUBTOTAL_4 sy-vline 
WA_BAPIITEMEX_STR-SUBTOTAL_5 sy-vline 
WA_BAPIITEMEX_STR-SUBTOTAL_6 sy-vline 
WA_BAPIITEMEX_STR-SALES_UNIT sy-vline 
WA_BAPIITEMEX_STR-QTY_REQ_DT sy-vline 
WA_BAPIITEMEX_STR-DLV_DATE sy-vline 
WA_BAPIITEMEX_STR-REPL_TIME sy-vline 
WA_BAPIITEMEX_STR-CONFIGURED sy-vline 
WA_BAPIITEMEX_STR-PURCH_NO_C sy-vline 
WA_BAPIITEMEX_STR-PURCH_DATE sy-vline 
WA_BAPIITEMEX_STR-PO_METHOD sy-vline 
WA_BAPIITEMEX_STR-REF_1 sy-vline 
WA_BAPIITEMEX_STR-PURCH_NO_S sy-vline 
WA_BAPIITEMEX_STR-PO_DAT_S sy-vline 
WA_BAPIITEMEX_STR-PO_METH_S sy-vline 
WA_BAPIITEMEX_STR-REF_1_S sy-vline 
WA_BAPIITEMEX_STR-PO_ITM_NO_S sy-vline 
WA_BAPIITEMEX_STR-NET_VALUE1 sy-vline 
WA_BAPIITEMEX_STR-CURR_ISO sy-vline 
WA_BAPIITEMEX_STR-S_UNIT_ISO sy-vline 
WA_BAPIITEMEX_STR-REQ_QTY sy-vline 
WA_BAPIITEMEX_STR-PLANT sy-vline 
WA_BAPIITEMEX_STR-TX_DOC_CUR sy-vline 
WA_BAPIITEMEX_STR-MAT_EXT sy-vline 
WA_BAPIITEMEX_STR-MAT_GUID sy-vline 
WA_BAPIITEMEX_STR-MAT_VERS sy-vline 
WA_BAPIITEMEX_STR-MAT_E_EXT sy-vline 
WA_BAPIITEMEX_STR-MAT_E_GUID sy-vline 
WA_BAPIITEMEX_STR-MAT_E_VERS sy-vline 
WA_BAPIITEMEX_STR-TARGET_QTY sy-vline 
WA_BAPIITEMEX_STR-TARGET_QU sy-vline 
WA_BAPIITEMEX_STR-T_UNIT_ISO sy-vline 
WA_BAPIITEMEX_STR-ITEM_CATEG sy-vline 
WA_BAPIITEMEX_STR-SHIP_POINT sy-vline 
WA_BAPIITEMEX_STR-HG_LV_ITEM sy-vline 
WA_BAPIITEMEX_STR-CUST_MAT sy-vline 
WA_BAPIITEMEX_STR-PART_DLV sy-vline 
WA_BAPIITEMEX_STR-REASON_REJ sy-vline 
WA_BAPIITEMEX_STR-BILL_BLOCK sy-vline 
WA_BAPIITEMEX_STR-STGE_LOC sy-vline 
WA_BAPIITEMEX_STR-PROD_HIER sy-vline 
WA_BAPIITEMEX_STR-MATL_GROUP sy-vline 
WA_BAPIITEMEX_STR-SUBTOTAL1 sy-vline 
WA_BAPIITEMEX_STR-SUBTOTAL2 sy-vline 
WA_BAPIITEMEX_STR-SUBTOTAL3 sy-vline 
WA_BAPIITEMEX_STR-SUBTOTAL4 sy-vline 
WA_BAPIITEMEX_STR-SUBTOTAL5 sy-vline 
WA_BAPIITEMEX_STR-SUBTOTAL6 sy-vline 
WA_BAPIITEMEX_STR-MATERIAL_LONG sy-vline 
WA_BAPIITEMEX_STR-MAT_ENTRD_LONG sy-vline 
WA_BAPIITEMEX_STR-REQ_SEGMENT sy-vline 
WA_BAPIITEMEX_STR-REQ_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.