ABAP Select data from SAP table XRFMIPURCHDOCIT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM XRFMIPURCHDOCIT
*  INTO TABLE @DATA(IT_XRFMIPURCHDOCIT2).
*--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_XRFMIPURCHDOCIT INDEX 1 INTO DATA(WA_XRFMIPURCHDOCIT2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_XRFMIPURCHDOCIT-SEASONCOMPLETENESSSTATUS, sy-vline,
  WA_XRFMIPURCHDOCIT-COMMITTEDQUANTITY, sy-vline,
  WA_XRFMIPURCHDOCIT-SHIPPINGGROUPRULE, sy-vline,
  WA_XRFMIPURCHDOCIT-SHIPPINGGROUPNUMBER, sy-vline,
  WA_XRFMIPURCHDOCIT-PRODUCTCHARACTERISTIC1, sy-vline,
  WA_XRFMIPURCHDOCIT-PRODUCTCHARACTERISTIC2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_XRFMIPURCHDOCIT 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_XRFMIPURCHDOCIT 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_XRFMIPURCHDOCIT INTO WA_XRFMIPURCHDOCIT.


*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_XRFMIPURCHDOCIT-SHIPPINGGROUPNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_XRFMIPURCHDOCIT-SHIPPINGGROUPNUMBER.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field ARUNDEMANDGROUPPRIORITY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_XRFMIPURCHDOCIT-ARUNDEMANDGROUPPRIORITY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_XRFMIPURCHDOCIT-ARUNDEMANDGROUPPRIORITY.
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_XRFMIPURCHDOCIT_STR, 
SUBITEMCATEGORY TYPE STRING,
PRODUCTSEASONYEAR TYPE STRING,
PRODUCTSEASON TYPE STRING,
PRODUCTCOLLECTION TYPE STRING,
PRODUCTTHEME TYPE STRING,
SEASONCOMPLETENESSSTATUS TYPE STRING,
COMMITTEDQUANTITY TYPE STRING,
SHIPPINGGROUPRULE TYPE STRING,
SHIPPINGGROUPNUMBER TYPE STRING,
PRODUCTCHARACTERISTIC1 TYPE STRING,
PRODUCTCHARACTERISTIC2 TYPE STRING,
PRODUCTCHARACTERISTIC3 TYPE STRING,
DIVERSIONSTATUS TYPE STRING,
REFERENCEDOCUMENTNUMBER TYPE STRING,
REFERENCEDOCUMENTITEM TYPE STRING,
PURCHASEORDERREFERENCETYPE TYPE STRING,
REFERENCEDOCUMENTSCHEDULELINE TYPE STRING,
ITEMHASVALUEADDEDSERVICE TYPE STRING,
VALADDEDSRVCPARENTITMNUMBER TYPE STRING,
ARUNPRIORITYVALUE TYPE STRING,
ARUNDEMANDGROUPPRIORITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_XRFMIPURCHDOCIT_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_XRFMIPURCHDOCIT_STR-SUBITEMCATEGORY sy-vline 
WA_XRFMIPURCHDOCIT_STR-PRODUCTSEASONYEAR sy-vline 
WA_XRFMIPURCHDOCIT_STR-PRODUCTSEASON sy-vline 
WA_XRFMIPURCHDOCIT_STR-PRODUCTCOLLECTION sy-vline 
WA_XRFMIPURCHDOCIT_STR-PRODUCTTHEME sy-vline 
WA_XRFMIPURCHDOCIT_STR-SEASONCOMPLETENESSSTATUS sy-vline 
WA_XRFMIPURCHDOCIT_STR-COMMITTEDQUANTITY sy-vline 
WA_XRFMIPURCHDOCIT_STR-SHIPPINGGROUPRULE sy-vline 
WA_XRFMIPURCHDOCIT_STR-SHIPPINGGROUPNUMBER sy-vline 
WA_XRFMIPURCHDOCIT_STR-PRODUCTCHARACTERISTIC1 sy-vline 
WA_XRFMIPURCHDOCIT_STR-PRODUCTCHARACTERISTIC2 sy-vline 
WA_XRFMIPURCHDOCIT_STR-PRODUCTCHARACTERISTIC3 sy-vline 
WA_XRFMIPURCHDOCIT_STR-DIVERSIONSTATUS sy-vline 
WA_XRFMIPURCHDOCIT_STR-REFERENCEDOCUMENTNUMBER sy-vline 
WA_XRFMIPURCHDOCIT_STR-REFERENCEDOCUMENTITEM sy-vline 
WA_XRFMIPURCHDOCIT_STR-PURCHASEORDERREFERENCETYPE sy-vline 
WA_XRFMIPURCHDOCIT_STR-REFERENCEDOCUMENTSCHEDULELINE sy-vline 
WA_XRFMIPURCHDOCIT_STR-ITEMHASVALUEADDEDSERVICE sy-vline 
WA_XRFMIPURCHDOCIT_STR-VALADDEDSRVCPARENTITMNUMBER sy-vline 
WA_XRFMIPURCHDOCIT_STR-ARUNPRIORITYVALUE sy-vline 
WA_XRFMIPURCHDOCIT_STR-ARUNDEMANDGROUPPRIORITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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