ABAP Select data from SAP table WPOS_SALES_TRANSACTION_ITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WPOS_SALES_TRANSACTION_ITEM
*  INTO TABLE @DATA(IT_WPOS_SALES_TRANSACTION_ITEM2).
*--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_WPOS_SALES_TRANSACTION_ITEM INDEX 1 INTO DATA(WA_WPOS_SALES_TRANSACTION_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WPOS_SALES_TRANSACTION_ITEM>-PRODUCT_GTIN = 1.
<WPOS_SALES_TRANSACTION_ITEM>-MATERIAL_NUMBER = 1.
<WPOS_SALES_TRANSACTION_ITEM>-MATERIAL_DESCRIPTION = 1.
<WPOS_SALES_TRANSACTION_ITEM>-QUANTITY = 1.
<WPOS_SALES_TRANSACTION_ITEM>-QUANTITY_UNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WPOS_SALES_TRANSACTION_ITEM-AMOUNT, sy-vline,
  WA_WPOS_SALES_TRANSACTION_ITEM-RETURN_ITEM_INDICATOR, sy-vline,
  WA_WPOS_SALES_TRANSACTION_ITEM-TIED_EMPTIES_INDICATOR, sy-vline,
  WA_WPOS_SALES_TRANSACTION_ITEM-FI_VALUATION_PRICE, sy-vline,
  WA_WPOS_SALES_TRANSACTION_ITEM-CURRENCY_CODE, sy-vline,
  WA_WPOS_SALES_TRANSACTION_ITEM-EXCHANGE_RATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WPOS_SALES_TRANSACTION_ITEM 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_WPOS_SALES_TRANSACTION_ITEM 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_WPOS_SALES_TRANSACTION_ITEM INTO WA_WPOS_SALES_TRANSACTION_ITEM.


*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_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WPOS_SALES_TRANSACTION_ITEM-MATERIAL_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WPOS_SALES_TRANSACTION_ITEM-MATERIAL_NUMBER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AU132, internal->external for field AMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_WPOS_SALES_TRANSACTION_ITEM-AMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WPOS_SALES_TRANSACTION_ITEM-AMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field FI_VALUATION_PRICE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_WPOS_SALES_TRANSACTION_ITEM-FI_VALUATION_PRICE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WPOS_SALES_TRANSACTION_ITEM-FI_VALUATION_PRICE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field EXCHANGE_RATE
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_WPOS_SALES_TRANSACTION_ITEM-EXCHANGE_RATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WPOS_SALES_TRANSACTION_ITEM-EXCHANGE_RATE.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit GJAHR, internal->external for field PRODUCT_SEASON_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_WPOS_SALES_TRANSACTION_ITEM-PRODUCT_SEASON_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WPOS_SALES_TRANSACTION_ITEM-PRODUCT_SEASON_YEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PARTNER_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WPOS_SALES_TRANSACTION_ITEM-PARTNER_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WPOS_SALES_TRANSACTION_ITEM-PARTNER_NUMBER.
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_WPOS_SALES_TRANSACTION_ITEM_STR, 
PRODUCT_GTIN TYPE STRING,
MATERIAL_NUMBER TYPE STRING,
MATERIAL_DESCRIPTION TYPE STRING,
QUANTITY TYPE STRING,
QUANTITY_UNIT TYPE STRING,
AMOUNT TYPE STRING,
RETURN_ITEM_INDICATOR TYPE STRING,
TIED_EMPTIES_INDICATOR TYPE STRING,
FI_VALUATION_PRICE TYPE STRING,
CURRENCY_CODE TYPE STRING,
EXCHANGE_RATE TYPE STRING,
MATERIAL_GROUP TYPE STRING,
BASE_UNIT TYPE STRING,
REFERENCE_ID TYPE STRING,
ORIGINAL_SALES_RECEIPT_ID TYPE STRING,
TRANSACTION_TYPE TYPE STRING,
GOODS_MOVEMENT_TYPE TYPE STRING,
ITEM_CATEGORY TYPE STRING,
STORAGE_LOCATION TYPE STRING,
DEBIT_CREDIT_INDICATOR TYPE STRING,
STATISTICS_UPDATE_GROUP TYPE STRING,
COST_CENTER TYPE STRING,
PROFIT_CENTER TYPE STRING,
GL_ACCOUNT_NUMBER TYPE STRING,
RETAIL_PROMOTION TYPE STRING,
PRODUCT_SEASON_YEAR TYPE STRING,
PRODUCT_SEASON TYPE STRING,
PRODUCT_COLLECTION TYPE STRING,
PRODUCT_THEME TYPE STRING,
BILLING_FLAG TYPE STRING,
INVENTORY_MANAGMENT_FLAG TYPE STRING,
SUPPLIER_ACCT_NO TYPE STRING,
SPECIAL_STOCK_IND TYPE STRING,
IS_PAYMENT_METHOD TYPE STRING,
SEQUENCE_NUMBER TYPE STRING,
ROW_NUMBER TYPE STRING,
PARTNER_NUMBER TYPE STRING,
CONDITIONS TYPE STRING,
TAXES TYPE STRING,
SERIAL_NUMBER TYPE STRING,
HEADER_DISCOUNTS TYPE STRING,
PAYMENT_LIST TYPE STRING,
DUMMY_BILLGDOCITEM_INCL_EEW_PS TYPE STRING,
DUMMY_INCL_EEW_COBL TYPE STRING,
DUMMY_BILLINGDOC_INCL_EEW_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WPOS_SALES_TRANSACTION_ITEM_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_WPOS_SALES_TRANSACTION_ITEM_STR-PRODUCT_GTIN sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-MATERIAL_NUMBER sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-MATERIAL_DESCRIPTION sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-QUANTITY sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-QUANTITY_UNIT sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-AMOUNT sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-RETURN_ITEM_INDICATOR sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-TIED_EMPTIES_INDICATOR sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-FI_VALUATION_PRICE sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-CURRENCY_CODE sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-EXCHANGE_RATE sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-MATERIAL_GROUP sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-BASE_UNIT sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-REFERENCE_ID sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-ORIGINAL_SALES_RECEIPT_ID sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-TRANSACTION_TYPE sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-GOODS_MOVEMENT_TYPE sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-ITEM_CATEGORY sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-STORAGE_LOCATION sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-DEBIT_CREDIT_INDICATOR sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-STATISTICS_UPDATE_GROUP sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-COST_CENTER sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-PROFIT_CENTER sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-GL_ACCOUNT_NUMBER sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-RETAIL_PROMOTION sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-PRODUCT_SEASON_YEAR sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-PRODUCT_SEASON sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-PRODUCT_COLLECTION sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-PRODUCT_THEME sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-BILLING_FLAG sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-INVENTORY_MANAGMENT_FLAG sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-SUPPLIER_ACCT_NO sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-SPECIAL_STOCK_IND sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-IS_PAYMENT_METHOD sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-SEQUENCE_NUMBER sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-ROW_NUMBER sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-PARTNER_NUMBER sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-CONDITIONS sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-TAXES sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-SERIAL_NUMBER sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-HEADER_DISCOUNTS sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-PAYMENT_LIST sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-DUMMY_BILLGDOCITEM_INCL_EEW_PS sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-DUMMY_INCL_EEW_COBL sy-vline 
WA_WPOS_SALES_TRANSACTION_ITEM_STR-DUMMY_BILLINGDOC_INCL_EEW_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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