ABAP Select data from SAP table ETX_S_EMCS_ARC_REQ_DEL_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ETX_S_EMCS_ARC_REQ_DEL_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 ETX_S_EMCS_ARC_REQ_DEL_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 ETX_S_EMCS_ARC_REQ_DEL_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_ETX_S_EMCS_ARC_REQ_DEL_ITEM TYPE STANDARD TABLE OF ETX_S_EMCS_ARC_REQ_DEL_ITEM,
      WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM TYPE ETX_S_EMCS_ARC_REQ_DEL_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: <ETX_S_EMCS_ARC_REQ_DEL_ITEM> TYPE ETX_S_EMCS_ARC_REQ_DEL_ITEM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ETX_S_EMCS_ARC_REQ_DEL_ITEM
*  INTO TABLE @DATA(IT_ETX_S_EMCS_ARC_REQ_DEL_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_ETX_S_EMCS_ARC_REQ_DEL_ITEM INDEX 1 INTO DATA(WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ETX_S_EMCS_ARC_REQ_DEL_ITEM>-ITEMNUMBER = 1.
<ETX_S_EMCS_ARC_REQ_DEL_ITEM>-MATERIALNO = 1.
<ETX_S_EMCS_ARC_REQ_DEL_ITEM>-CONSIGNORPLANT = 1.
<ETX_S_EMCS_ARC_REQ_DEL_ITEM>-STORAGELOCATION = 1.
<ETX_S_EMCS_ARC_REQ_DEL_ITEM>-CUSTOMERREFERENCENUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM-SALESORDERNUMBER, sy-vline,
  WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM-ORDERTYPE, sy-vline,
  WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM-SALESDOCUMENTITEMCATEGORY, sy-vline,
  WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM-GROSSWEIGHT, sy-vline,
  WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM-NETWEIGHT, sy-vline,
  WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM-UNITOFWEIGHT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ETX_S_EMCS_ARC_REQ_DEL_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_ETX_S_EMCS_ARC_REQ_DEL_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_ETX_S_EMCS_ARC_REQ_DEL_ITEM INTO WA_ETX_S_EMCS_ARC_REQ_DEL_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 MATERIALNO
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM-MATERIALNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM-MATERIALNO.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AUART, internal->external for field ORDERTYPE
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM-ORDERTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM-ORDERTYPE.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit CUNIT, internal->external for field ORDERUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM-ORDERUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM-ORDERUNIT.
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_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR, 
ITEMNUMBER TYPE STRING,
MATERIALNO TYPE STRING,
CONSIGNORPLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
CUSTOMERREFERENCENUMBER TYPE STRING,
SALESORDERNUMBER TYPE STRING,
ORDERTYPE TYPE STRING,
SALESDOCUMENTITEMCATEGORY TYPE STRING,
GROSSWEIGHT TYPE STRING,
NETWEIGHT TYPE STRING,
UNITOFWEIGHT TYPE STRING,
MOVEMENTTYPE TYPE STRING,
MATERIALDOCUMENTITEM TYPE STRING,
QUANTITY TYPE STRING,
BASEUNITOFMEASURE TYPE STRING,
QUANTITYINUNITOFENTRY TYPE STRING,
UNITOFENTRY TYPE STRING,
QUANTITYINORDERUNIT TYPE STRING,
ORDERUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ETX_S_EMCS_ARC_REQ_DEL_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_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-ITEMNUMBER sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-MATERIALNO sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-CONSIGNORPLANT sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-STORAGELOCATION sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-CUSTOMERREFERENCENUMBER sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-SALESORDERNUMBER sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-ORDERTYPE sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-SALESDOCUMENTITEMCATEGORY sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-GROSSWEIGHT sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-NETWEIGHT sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-UNITOFWEIGHT sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-MOVEMENTTYPE sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-MATERIALDOCUMENTITEM sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-QUANTITY sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-BASEUNITOFMEASURE sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-QUANTITYINUNITOFENTRY sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-UNITOFENTRY sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-QUANTITYINORDERUNIT sy-vline 
WA_ETX_S_EMCS_ARC_REQ_DEL_ITEM_STR-ORDERUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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