ABAP Select data from SAP table LEIDW_DELIVERY_ITEM_ORDER_REFE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LEIDW_DELIVERY_ITEM_ORDER_REFE
*  INTO TABLE @DATA(IT_LEIDW_DELIVERY_ITEM_ORDER_REFE2).
*--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_LEIDW_DELIVERY_ITEM_ORDER_REFE INDEX 1 INTO DATA(WA_LEIDW_DELIVERY_ITEM_ORDER_REFE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LEIDW_DELIVERY_ITEM_ORDER_REFE>-CONTROLLER = 1.
<LEIDW_DELIVERY_ITEM_ORDER_REFE>-SALES_DOCUMENT = 1.
<LEIDW_DELIVERY_ITEM_ORDER_REFE>-SALES_DOCUMENT_ITEM = 1.
<LEIDW_DELIVERY_ITEM_ORDER_REFE>-REFERENCE_SDDOCUMENT_CATEGORY = 1.
<LEIDW_DELIVERY_ITEM_ORDER_REFE>-SALES_DOCUMENT_DATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LEIDW_DELIVERY_ITEM_ORDER_REFE-PURCHASE_ORDER_BY_CUSTOMER, sy-vline,
  WA_LEIDW_DELIVERY_ITEM_ORDER_REFE-UNDERLYING_PURCHASE_ORDER_ITEM, sy-vline,
  WA_LEIDW_DELIVERY_ITEM_ORDER_REFE-CUSTOMER_PURCHASE_ORDER_TYPE, sy-vline,
  WA_LEIDW_DELIVERY_ITEM_ORDER_REFE-CUSTOMER_PURCHASE_ORDER_TYPE_D, sy-vline,
  WA_LEIDW_DELIVERY_ITEM_ORDER_REFE-CORRESPNC_EXTERNAL_REFERENCE, sy-vline,
  WA_LEIDW_DELIVERY_ITEM_ORDER_REFE-CUSTOMER_PURCHASE_ORDER_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LEIDW_DELIVERY_ITEM_ORDER_REFE 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_LEIDW_DELIVERY_ITEM_ORDER_REFE 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_LEIDW_DELIVERY_ITEM_ORDER_REFE INTO WA_LEIDW_DELIVERY_ITEM_ORDER_REFE.


*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_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR, 
CONTROLLER TYPE STRING,
SALES_DOCUMENT TYPE STRING,
SALES_DOCUMENT_ITEM TYPE STRING,
REFERENCE_SDDOCUMENT_CATEGORY TYPE STRING,
SALES_DOCUMENT_DATE TYPE STRING,
PURCHASE_ORDER_BY_CUSTOMER TYPE STRING,
UNDERLYING_PURCHASE_ORDER_ITEM TYPE STRING,
CUSTOMER_PURCHASE_ORDER_TYPE TYPE STRING,
CUSTOMER_PURCHASE_ORDER_TYPE_D TYPE STRING,
CORRESPNC_EXTERNAL_REFERENCE TYPE STRING,
CUSTOMER_PURCHASE_ORDER_DATE TYPE STRING,
UNDRLG_PUR_ORD_ITM_BY_SHIP_TO TYPE STRING,
PURG_DOC_EXT_REF_BY_SHIP_TO_PA TYPE STRING,
CUST_PUR_ORD_TYPE_BY_SHIP_TO_P TYPE STRING,
CUST_PUR_ORD_DATE_BY_SHIP_TO_P TYPE STRING,
PURCHASE_ORDER_BY_SHIP_TO_PART TYPE STRING,
PURCHASING_DOCUMENT TYPE STRING,
PURCHASING_DOCUMENT_ITEM TYPE STRING,
PURCHASING_DOCUMENT_ORDER_DATE TYPE STRING,
PURCHASING_GROUP TYPE STRING,
PURCHASING_ORGANIZATION TYPE STRING,
PURCHASING_DOCUMENT_ORIGIN TYPE STRING,
PURCHASING_DOCUMENT_CATEGORY TYPE STRING,
PURCHASING_DOCUMENT_TYPE TYPE STRING,
PURCHASING_DOCUMENT_SUBTYPE TYPE STRING,
PURCHASING_DOCUMENT_ITEM_CATEG TYPE STRING,
GOODS_RECEIPT_IS_EXPECTED TYPE STRING,
GOODS_RECEIPT_IS_NON_VALUATED TYPE STRING,
INVOICE_IS_GOODS_RECEIPT_BASED TYPE STRING,
START_DATE_FOR_GRBASED_SETTLEM TYPE STRING,
IS_COMPLETELY_DELIVERED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_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_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-CONTROLLER sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-SALES_DOCUMENT sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-SALES_DOCUMENT_ITEM sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-REFERENCE_SDDOCUMENT_CATEGORY sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-SALES_DOCUMENT_DATE sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-PURCHASE_ORDER_BY_CUSTOMER sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-UNDERLYING_PURCHASE_ORDER_ITEM sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-CUSTOMER_PURCHASE_ORDER_TYPE sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-CUSTOMER_PURCHASE_ORDER_TYPE_D sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-CORRESPNC_EXTERNAL_REFERENCE sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-CUSTOMER_PURCHASE_ORDER_DATE sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-UNDRLG_PUR_ORD_ITM_BY_SHIP_TO sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-PURG_DOC_EXT_REF_BY_SHIP_TO_PA sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-CUST_PUR_ORD_TYPE_BY_SHIP_TO_P sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-CUST_PUR_ORD_DATE_BY_SHIP_TO_P sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-PURCHASE_ORDER_BY_SHIP_TO_PART sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-PURCHASING_DOCUMENT sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-PURCHASING_DOCUMENT_ITEM sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-PURCHASING_DOCUMENT_ORDER_DATE sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-PURCHASING_GROUP sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-PURCHASING_ORGANIZATION sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-PURCHASING_DOCUMENT_ORIGIN sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-PURCHASING_DOCUMENT_CATEGORY sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-PURCHASING_DOCUMENT_TYPE sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-PURCHASING_DOCUMENT_SUBTYPE sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-PURCHASING_DOCUMENT_ITEM_CATEG sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-GOODS_RECEIPT_IS_EXPECTED sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-GOODS_RECEIPT_IS_NON_VALUATED sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-INVOICE_IS_GOODS_RECEIPT_BASED sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-START_DATE_FOR_GRBASED_SETTLEM sy-vline 
WA_LEIDW_DELIVERY_ITEM_ORDER_REFE_STR-IS_COMPLETELY_DELIVERED sy-vline      INTO ld_text SEPARATED BY SPACE.

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