ABAP Select data from SAP table XDM03S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP XDM03S 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 XDM03S. 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 XDM03S 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_XDM03S TYPE STANDARD TABLE OF XDM03S,
      WA_XDM03S TYPE XDM03S,
      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: <XDM03S> TYPE XDM03S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_XDM03S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM XDM03S
  INTO TABLE IT_XDM03S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM XDM03S
*  INTO TABLE @DATA(IT_XDM03S2).
*--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_XDM03S INDEX 1 INTO DATA(WA_XDM03S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_XDM03S ASSIGNING <XDM03S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<XDM03S>-VRSFLAG = 1.
<XDM03S>-ENTID = 1.
<XDM03S>-AS4LOCAL = 1.
<XDM03S>-EATTID = 1.
<XDM03S>-EATYP = 1.

ENDLOOP.

LOOP AT IT_XDM03S INTO WA_XDM03S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_XDM03S-FLDCLASS, sy-vline,
  WA_XDM03S-FLDCLASS2, sy-vline,
  WA_XDM03S-FLDINH, sy-vline,
  WA_XDM03S-FLDREL, sy-vline,
  WA_XDM03S-ROLLNAME, sy-vline,
  WA_XDM03S-EAPOS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_XDM03S 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_XDM03S 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_XDM03S INTO WA_XDM03S.


*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_XDM03S_STR, 
VRSFLAG TYPE STRING,
ENTID TYPE STRING,
AS4LOCAL TYPE STRING,
EATTID TYPE STRING,
EATYP TYPE STRING,
FLDCLASS TYPE STRING,
FLDCLASS2 TYPE STRING,
FLDINH TYPE STRING,
FLDREL TYPE STRING,
ROLLNAME TYPE STRING,
EAPOS TYPE STRING,
FSTUSER TYPE STRING,
FSTDATE TYPE STRING,
FSTTIME TYPE STRING,
LSTUSER TYPE STRING,
LSTDATE TYPE STRING,
LSTTIME TYPE STRING,
LOESCHZ TYPE STRING,
FLG_FROMDD TYPE STRING,
KEYTYPE TYPE STRING,
ATTRTYPE TYPE STRING,
FLG_COUNTR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_XDM03S_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_XDM03S_STR-VRSFLAG sy-vline 
WA_XDM03S_STR-ENTID sy-vline 
WA_XDM03S_STR-AS4LOCAL sy-vline 
WA_XDM03S_STR-EATTID sy-vline 
WA_XDM03S_STR-EATYP sy-vline 
WA_XDM03S_STR-FLDCLASS sy-vline 
WA_XDM03S_STR-FLDCLASS2 sy-vline 
WA_XDM03S_STR-FLDINH sy-vline 
WA_XDM03S_STR-FLDREL sy-vline 
WA_XDM03S_STR-ROLLNAME sy-vline 
WA_XDM03S_STR-EAPOS sy-vline 
WA_XDM03S_STR-FSTUSER sy-vline 
WA_XDM03S_STR-FSTDATE sy-vline 
WA_XDM03S_STR-FSTTIME sy-vline 
WA_XDM03S_STR-LSTUSER sy-vline 
WA_XDM03S_STR-LSTDATE sy-vline 
WA_XDM03S_STR-LSTTIME sy-vline 
WA_XDM03S_STR-LOESCHZ sy-vline 
WA_XDM03S_STR-FLG_FROMDD sy-vline 
WA_XDM03S_STR-KEYTYPE sy-vline 
WA_XDM03S_STR-ATTRTYPE sy-vline 
WA_XDM03S_STR-FLG_COUNTR sy-vline      INTO ld_text SEPARATED BY SPACE.

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