ABAP Select data from SAP table VDFS_RELOC_PROD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VDFS_RELOC_PROD
*  INTO TABLE @DATA(IT_VDFS_RELOC_PROD2).
*--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_VDFS_RELOC_PROD INDEX 1 INTO DATA(WA_VDFS_RELOC_PROD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VDFS_RELOC_PROD>-CLIENT = 1.
<VDFS_RELOC_PROD>-DEFENSERELOCATIONPRODPLNGUUID = 1.
<VDFS_RELOC_PROD>-DEFENSERELOCATIONSTEPPLNGUUID = 1.
<VDFS_RELOC_PROD>-DEFENSERELOCATIONPLANNINGUUID = 1.
<VDFS_RELOC_PROD>-PRODUCT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VDFS_RELOC_PROD-DFSRELOCNMBROFASSGDMATLINDOC, sy-vline,
  WA_VDFS_RELOC_PROD-DFSRELOCATIONDOCUMENTTYPE, sy-vline,
  WA_VDFS_RELOC_PROD-DFSRELOCATIONWBSELEMENTINTID, sy-vline,
  WA_VDFS_RELOC_PROD-CREATIONDATETIME, sy-vline,
  WA_VDFS_RELOC_PROD-CREATEDBYUSER, sy-vline,
  WA_VDFS_RELOC_PROD-LASTCHANGEDATETIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VDFS_RELOC_PROD 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_VDFS_RELOC_PROD 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_VDFS_RELOC_PROD INTO WA_VDFS_RELOC_PROD.


*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 PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_VDFS_RELOC_PROD-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDFS_RELOC_PROD-PRODUCT.
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_VDFS_RELOC_PROD_STR, 
CLIENT TYPE STRING,
DEFENSERELOCATIONPRODPLNGUUID TYPE STRING,
DEFENSERELOCATIONSTEPPLNGUUID TYPE STRING,
DEFENSERELOCATIONPLANNINGUUID TYPE STRING,
PRODUCT TYPE STRING,
DFSRELOCNMBROFASSGDMATLINDOC TYPE STRING,
DFSRELOCATIONDOCUMENTTYPE TYPE STRING,
DFSRELOCATIONWBSELEMENTINTID TYPE STRING,
CREATIONDATETIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
DUMMY_RELOC_PROD_INCL_EEW_PS TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VDFS_RELOC_PROD_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_VDFS_RELOC_PROD_STR-CLIENT sy-vline 
WA_VDFS_RELOC_PROD_STR-DEFENSERELOCATIONPRODPLNGUUID sy-vline 
WA_VDFS_RELOC_PROD_STR-DEFENSERELOCATIONSTEPPLNGUUID sy-vline 
WA_VDFS_RELOC_PROD_STR-DEFENSERELOCATIONPLANNINGUUID sy-vline 
WA_VDFS_RELOC_PROD_STR-PRODUCT sy-vline 
WA_VDFS_RELOC_PROD_STR-DFSRELOCNMBROFASSGDMATLINDOC sy-vline 
WA_VDFS_RELOC_PROD_STR-DFSRELOCATIONDOCUMENTTYPE sy-vline 
WA_VDFS_RELOC_PROD_STR-DFSRELOCATIONWBSELEMENTINTID sy-vline 
WA_VDFS_RELOC_PROD_STR-CREATIONDATETIME sy-vline 
WA_VDFS_RELOC_PROD_STR-CREATEDBYUSER sy-vline 
WA_VDFS_RELOC_PROD_STR-LASTCHANGEDATETIME sy-vline 
WA_VDFS_RELOC_PROD_STR-LASTCHANGEDBYUSER sy-vline 
WA_VDFS_RELOC_PROD_STR-DUMMY_RELOC_PROD_INCL_EEW_PS sy-vline 
WA_VDFS_RELOC_PROD_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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