ABAP Select data from SAP table DMF_S_ART_PL_DC_SITE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DMF_S_ART_PL_DC_SITE
*  INTO TABLE @DATA(IT_DMF_S_ART_PL_DC_SITE2).
*--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_DMF_S_ART_PL_DC_SITE INDEX 1 INTO DATA(WA_DMF_S_ART_PL_DC_SITE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DMF_S_ART_PL_DC_SITE>-AKTNR = 1.
<DMF_S_ART_PL_DC_SITE>-PLTYP = 1.
<DMF_S_ART_PL_DC_SITE>-ARTNR = 1.
<DMF_S_ART_PL_DC_SITE>-VKORG = 1.
<DMF_S_ART_PL_DC_SITE>-VTWEG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DMF_S_ART_PL_DC_SITE-WERKS, sy-vline,
  WA_DMF_S_ART_PL_DC_SITE-KUNNR, sy-vline,
  WA_DMF_S_ART_PL_DC_SITE-VLFKZ, sy-vline,
  WA_DMF_S_ART_PL_DC_SITE-PLVKP, sy-vline,
  WA_DMF_S_ART_PL_DC_SITE-VPEIN, sy-vline,
  WA_DMF_S_ART_PL_DC_SITE-WAELA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DMF_S_ART_PL_DC_SITE 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_DMF_S_ART_PL_DC_SITE 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_DMF_S_ART_PL_DC_SITE INTO WA_DMF_S_ART_PL_DC_SITE.


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

*Conversion exit MATN1, internal->external for field ARTNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_DMF_S_ART_PL_DC_SITE-ARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DMF_S_ART_PL_DC_SITE-ARTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DMF_S_ART_PL_DC_SITE-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DMF_S_ART_PL_DC_SITE-KUNNR.
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_DMF_S_ART_PL_DC_SITE_STR, 
AKTNR TYPE STRING,
PLTYP TYPE STRING,
ARTNR TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
WERKS TYPE STRING,
KUNNR TYPE STRING,
VLFKZ TYPE STRING,
PLVKP TYPE STRING,
VPEIN TYPE STRING,
WAELA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DMF_S_ART_PL_DC_SITE_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_DMF_S_ART_PL_DC_SITE_STR-AKTNR sy-vline 
WA_DMF_S_ART_PL_DC_SITE_STR-PLTYP sy-vline 
WA_DMF_S_ART_PL_DC_SITE_STR-ARTNR sy-vline 
WA_DMF_S_ART_PL_DC_SITE_STR-VKORG sy-vline 
WA_DMF_S_ART_PL_DC_SITE_STR-VTWEG sy-vline 
WA_DMF_S_ART_PL_DC_SITE_STR-WERKS sy-vline 
WA_DMF_S_ART_PL_DC_SITE_STR-KUNNR sy-vline 
WA_DMF_S_ART_PL_DC_SITE_STR-VLFKZ sy-vline 
WA_DMF_S_ART_PL_DC_SITE_STR-PLVKP sy-vline 
WA_DMF_S_ART_PL_DC_SITE_STR-VPEIN sy-vline 
WA_DMF_S_ART_PL_DC_SITE_STR-WAELA sy-vline      INTO ld_text SEPARATED BY SPACE.

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