ABAP Select data from SAP table XACUSTRETITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM XACUSTRETITEM
*  INTO TABLE @DATA(IT_XACUSTRETITEM2).
*--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_XACUSTRETITEM INDEX 1 INTO DATA(WA_XACUSTRETITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<XACUSTRETITEM>-PRODUCTSEASONYEAR = 1.
<XACUSTRETITEM>-PRODUCTSEASON = 1.
<XACUSTRETITEM>-PRODUCTCOLLECTION = 1.
<XACUSTRETITEM>-PRODUCTTHEME = 1.
<XACUSTRETITEM>-SEASONCOMPLETENESSSTATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_XACUSTRETITEM-FASHIONCANCELDATE, sy-vline,
  WA_XACUSTRETITEM-PRODUCTCHARACTERISTIC1, sy-vline,
  WA_XACUSTRETITEM-PRODUCTCHARACTERISTIC2, sy-vline,
  WA_XACUSTRETITEM-PRODUCTCHARACTERISTIC3, sy-vline,
  WA_XACUSTRETITEM-SHIPPINGGROUPNUMBER, sy-vline,
  WA_XACUSTRETITEM-SHIPPINGGROUPRULE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_XACUSTRETITEM 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_XACUSTRETITEM 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_XACUSTRETITEM INTO WA_XACUSTRETITEM.


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

*Conversion exit MATN1, internal->external for field CROSSPLANTCONFIGURABLEPRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_XACUSTRETITEM-CROSSPLANTCONFIGURABLEPRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_XACUSTRETITEM-CROSSPLANTCONFIGURABLEPRODUCT.
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_XACUSTRETITEM_STR, 
PRODUCTSEASONYEAR TYPE STRING,
PRODUCTSEASON TYPE STRING,
PRODUCTCOLLECTION TYPE STRING,
PRODUCTTHEME TYPE STRING,
SEASONCOMPLETENESSSTATUS TYPE STRING,
FASHIONCANCELDATE TYPE STRING,
PRODUCTCHARACTERISTIC1 TYPE STRING,
PRODUCTCHARACTERISTIC2 TYPE STRING,
PRODUCTCHARACTERISTIC3 TYPE STRING,
SHIPPINGGROUPNUMBER TYPE STRING,
SHIPPINGGROUPRULE TYPE STRING,
CROSSPLANTCONFIGURABLEPRODUCT TYPE STRING,
PRODUCTCATEGORY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_XACUSTRETITEM_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_XACUSTRETITEM_STR-PRODUCTSEASONYEAR sy-vline 
WA_XACUSTRETITEM_STR-PRODUCTSEASON sy-vline 
WA_XACUSTRETITEM_STR-PRODUCTCOLLECTION sy-vline 
WA_XACUSTRETITEM_STR-PRODUCTTHEME sy-vline 
WA_XACUSTRETITEM_STR-SEASONCOMPLETENESSSTATUS sy-vline 
WA_XACUSTRETITEM_STR-FASHIONCANCELDATE sy-vline 
WA_XACUSTRETITEM_STR-PRODUCTCHARACTERISTIC1 sy-vline 
WA_XACUSTRETITEM_STR-PRODUCTCHARACTERISTIC2 sy-vline 
WA_XACUSTRETITEM_STR-PRODUCTCHARACTERISTIC3 sy-vline 
WA_XACUSTRETITEM_STR-SHIPPINGGROUPNUMBER sy-vline 
WA_XACUSTRETITEM_STR-SHIPPINGGROUPRULE sy-vline 
WA_XACUSTRETITEM_STR-CROSSPLANTCONFIGURABLEPRODUCT sy-vline 
WA_XACUSTRETITEM_STR-PRODUCTCATEGORY sy-vline      INTO ld_text SEPARATED BY SPACE.

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