ABAP Select data from SAP table TDS_VDM_ITEM_ADVRET into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_VDM_ITEM_ADVRET
*  INTO TABLE @DATA(IT_TDS_VDM_ITEM_ADVRET2).
*--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_TDS_VDM_ITEM_ADVRET INDEX 1 INTO DATA(WA_TDS_VDM_ITEM_ADVRET2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_VDM_ITEM_ADVRET>-RETURNREASON = 1.
<TDS_VDM_ITEM_ADVRET>-RETURNSREFUNDEXTENT = 1.
<TDS_VDM_ITEM_ADVRET>-RETSMGMTPROCESSINGBLOCK = 1.
<TDS_VDM_ITEM_ADVRET>-CUSTRETITMFOLLOWUPACTIVITY = 1.
<TDS_VDM_ITEM_ADVRET>-RETURNREFUNDTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_VDM_ITEM_ADVRET-RETURNSREFUNDPROCGMODE, sy-vline,
  WA_TDS_VDM_ITEM_ADVRET-PRELIMREFUNDISDETERMINED, sy-vline,
  WA_TDS_VDM_ITEM_ADVRET-RETMATLINSPRESULTCODE, sy-vline,
  WA_TDS_VDM_ITEM_ADVRET-PRODUCTISINSPECTEDATCUSTSITE, sy-vline,
  WA_TDS_VDM_ITEM_ADVRET-RETURNSMATERIALHASBEENRECEIVED, sy-vline,
  WA_TDS_VDM_ITEM_ADVRET-REPLACEMENTMATERIAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_VDM_ITEM_ADVRET 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_TDS_VDM_ITEM_ADVRET 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_TDS_VDM_ITEM_ADVRET INTO WA_TDS_VDM_ITEM_ADVRET.


*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 REPLACEMENTMATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_TDS_VDM_ITEM_ADVRET-REPLACEMENTMATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_VDM_ITEM_ADVRET-REPLACEMENTMATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field REPLACEMENTMATERIALQTYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TDS_VDM_ITEM_ADVRET-REPLACEMENTMATERIALQTYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_VDM_ITEM_ADVRET-REPLACEMENTMATERIALQTYUNIT.
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_TDS_VDM_ITEM_ADVRET_STR, 
RETURNREASON TYPE STRING,
RETURNSREFUNDEXTENT TYPE STRING,
RETSMGMTPROCESSINGBLOCK TYPE STRING,
CUSTRETITMFOLLOWUPACTIVITY TYPE STRING,
RETURNREFUNDTYPE TYPE STRING,
RETURNSREFUNDPROCGMODE TYPE STRING,
PRELIMREFUNDISDETERMINED TYPE STRING,
RETMATLINSPRESULTCODE TYPE STRING,
PRODUCTISINSPECTEDATCUSTSITE TYPE STRING,
RETURNSMATERIALHASBEENRECEIVED TYPE STRING,
REPLACEMENTMATERIAL TYPE STRING,
REPLACEMENTMATERIALQUANTITY TYPE STRING,
REPLACEMENTMATERIALQTYUNIT TYPE STRING,
REPLACEMENTMATERIALISREQUESTED TYPE STRING,
REPLACEMENTMATLSUPPLYINGPLANT TYPE STRING,
CUSTOMERRETMATLINSPRESULTCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_VDM_ITEM_ADVRET_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_TDS_VDM_ITEM_ADVRET_STR-RETURNREASON sy-vline 
WA_TDS_VDM_ITEM_ADVRET_STR-RETURNSREFUNDEXTENT sy-vline 
WA_TDS_VDM_ITEM_ADVRET_STR-RETSMGMTPROCESSINGBLOCK sy-vline 
WA_TDS_VDM_ITEM_ADVRET_STR-CUSTRETITMFOLLOWUPACTIVITY sy-vline 
WA_TDS_VDM_ITEM_ADVRET_STR-RETURNREFUNDTYPE sy-vline 
WA_TDS_VDM_ITEM_ADVRET_STR-RETURNSREFUNDPROCGMODE sy-vline 
WA_TDS_VDM_ITEM_ADVRET_STR-PRELIMREFUNDISDETERMINED sy-vline 
WA_TDS_VDM_ITEM_ADVRET_STR-RETMATLINSPRESULTCODE sy-vline 
WA_TDS_VDM_ITEM_ADVRET_STR-PRODUCTISINSPECTEDATCUSTSITE sy-vline 
WA_TDS_VDM_ITEM_ADVRET_STR-RETURNSMATERIALHASBEENRECEIVED sy-vline 
WA_TDS_VDM_ITEM_ADVRET_STR-REPLACEMENTMATERIAL sy-vline 
WA_TDS_VDM_ITEM_ADVRET_STR-REPLACEMENTMATERIALQUANTITY sy-vline 
WA_TDS_VDM_ITEM_ADVRET_STR-REPLACEMENTMATERIALQTYUNIT sy-vline 
WA_TDS_VDM_ITEM_ADVRET_STR-REPLACEMENTMATERIALISREQUESTED sy-vline 
WA_TDS_VDM_ITEM_ADVRET_STR-REPLACEMENTMATLSUPPLYINGPLANT sy-vline 
WA_TDS_VDM_ITEM_ADVRET_STR-CUSTOMERRETMATLINSPRESULTCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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