ABAP Select data from SAP table DMF_S_DOCUMENT 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_DOCUMENT 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_DOCUMENT. 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_DOCUMENT 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_DOCUMENT TYPE STANDARD TABLE OF DMF_S_DOCUMENT,
      WA_DMF_S_DOCUMENT TYPE DMF_S_DOCUMENT,
      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_DOCUMENT> TYPE DMF_S_DOCUMENT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DMF_S_DOCUMENT
*  INTO TABLE @DATA(IT_DMF_S_DOCUMENT2).
*--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_DOCUMENT INDEX 1 INTO DATA(WA_DMF_S_DOCUMENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DMF_S_DOCUMENT>-DOCUMENT_NO = 1.
<DMF_S_DOCUMENT>-DOCUMENT_ITEM_NO = 1.
<DMF_S_DOCUMENT>-SCHEDULE_LINE_NUMBER = 1.
<DMF_S_DOCUMENT>-TS_WS_DOC_TCD = 1.
<DMF_S_DOCUMENT>-EXT_SOLD_TO_PARTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DMF_S_DOCUMENT-SOLD_TO_PARTY_TCD, sy-vline,
  WA_DMF_S_DOCUMENT-EXT_SHIP_TO_PARTY, sy-vline,
  WA_DMF_S_DOCUMENT-SHIP_TO_PARTY_TCD, sy-vline,
  WA_DMF_S_DOCUMENT-EXT_SUPPLY_LOCATION, sy-vline,
  WA_DMF_S_DOCUMENT-SUPPLY_LOC_TCD, sy-vline,
  WA_DMF_S_DOCUMENT-EXT_SALES_ORG_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DMF_S_DOCUMENT 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_DOCUMENT 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_DOCUMENT INTO WA_DMF_S_DOCUMENT.


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

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

*Conversion exit CUNIT, internal->external for field SALES_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DMF_S_DOCUMENT-SALES_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DMF_S_DOCUMENT-SALES_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DMF_S_DOCUMENT-UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DMF_S_DOCUMENT-UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field SEASON_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_DMF_S_DOCUMENT-SEASON_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DMF_S_DOCUMENT-SEASON_YEAR.
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_DOCUMENT_STR, 
DOCUMENT_NO TYPE STRING,
DOCUMENT_ITEM_NO TYPE STRING,
SCHEDULE_LINE_NUMBER TYPE STRING,
TS_WS_DOC_TCD TYPE STRING,
EXT_SOLD_TO_PARTY TYPE STRING,
SOLD_TO_PARTY_TCD TYPE STRING,
EXT_SHIP_TO_PARTY TYPE STRING,
SHIP_TO_PARTY_TCD TYPE STRING,
EXT_SUPPLY_LOCATION TYPE STRING,
SUPPLY_LOC_TCD TYPE STRING,
EXT_SALES_ORG_ID TYPE STRING,
EXT_DISTR_CHNL_ID TYPE STRING,
RETURNED_SALE TYPE STRING,
EXT_PROD_ID TYPE STRING,
PRC_TCD TYPE STRING,
SO_REASON_CODE TYPE STRING,
REF_SALES_ORDER_NO TYPE STRING,
REF_SALES_ORDER_ITEM_NO TYPE STRING,
ORDERED_DATE TYPE STRING,
EXPECTED_DELIVERY_DATE TYPE STRING,
GOODS_MOVEMENT_DATE TYPE STRING,
ORDER_QUANTITY TYPE STRING,
CONFIRMED_QUANTITY TYPE STRING,
SALES_UOM TYPE STRING,
GROSS_SALES_AMNT TYPE STRING,
NET_SALES_AMNT TYPE STRING,
CURRENCY TYPE STRING,
UOM TYPE STRING,
LOCAL_CURRENCY TYPE STRING,
COST_PRC_PER_UNIT TYPE STRING,
SEASON_YEAR TYPE STRING,
SEASON_ID TYPE STRING,
COLLECTION_ID TYPE STRING,
THEME_ID TYPE STRING,
FUNCTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DMF_S_DOCUMENT_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_DOCUMENT_STR-DOCUMENT_NO sy-vline 
WA_DMF_S_DOCUMENT_STR-DOCUMENT_ITEM_NO sy-vline 
WA_DMF_S_DOCUMENT_STR-SCHEDULE_LINE_NUMBER sy-vline 
WA_DMF_S_DOCUMENT_STR-TS_WS_DOC_TCD sy-vline 
WA_DMF_S_DOCUMENT_STR-EXT_SOLD_TO_PARTY sy-vline 
WA_DMF_S_DOCUMENT_STR-SOLD_TO_PARTY_TCD sy-vline 
WA_DMF_S_DOCUMENT_STR-EXT_SHIP_TO_PARTY sy-vline 
WA_DMF_S_DOCUMENT_STR-SHIP_TO_PARTY_TCD sy-vline 
WA_DMF_S_DOCUMENT_STR-EXT_SUPPLY_LOCATION sy-vline 
WA_DMF_S_DOCUMENT_STR-SUPPLY_LOC_TCD sy-vline 
WA_DMF_S_DOCUMENT_STR-EXT_SALES_ORG_ID sy-vline 
WA_DMF_S_DOCUMENT_STR-EXT_DISTR_CHNL_ID sy-vline 
WA_DMF_S_DOCUMENT_STR-RETURNED_SALE sy-vline 
WA_DMF_S_DOCUMENT_STR-EXT_PROD_ID sy-vline 
WA_DMF_S_DOCUMENT_STR-PRC_TCD sy-vline 
WA_DMF_S_DOCUMENT_STR-SO_REASON_CODE sy-vline 
WA_DMF_S_DOCUMENT_STR-REF_SALES_ORDER_NO sy-vline 
WA_DMF_S_DOCUMENT_STR-REF_SALES_ORDER_ITEM_NO sy-vline 
WA_DMF_S_DOCUMENT_STR-ORDERED_DATE sy-vline 
WA_DMF_S_DOCUMENT_STR-EXPECTED_DELIVERY_DATE sy-vline 
WA_DMF_S_DOCUMENT_STR-GOODS_MOVEMENT_DATE sy-vline 
WA_DMF_S_DOCUMENT_STR-ORDER_QUANTITY sy-vline 
WA_DMF_S_DOCUMENT_STR-CONFIRMED_QUANTITY sy-vline 
WA_DMF_S_DOCUMENT_STR-SALES_UOM sy-vline 
WA_DMF_S_DOCUMENT_STR-GROSS_SALES_AMNT sy-vline 
WA_DMF_S_DOCUMENT_STR-NET_SALES_AMNT sy-vline 
WA_DMF_S_DOCUMENT_STR-CURRENCY sy-vline 
WA_DMF_S_DOCUMENT_STR-UOM sy-vline 
WA_DMF_S_DOCUMENT_STR-LOCAL_CURRENCY sy-vline 
WA_DMF_S_DOCUMENT_STR-COST_PRC_PER_UNIT sy-vline 
WA_DMF_S_DOCUMENT_STR-SEASON_YEAR sy-vline 
WA_DMF_S_DOCUMENT_STR-SEASON_ID sy-vline 
WA_DMF_S_DOCUMENT_STR-COLLECTION_ID sy-vline 
WA_DMF_S_DOCUMENT_STR-THEME_ID sy-vline 
WA_DMF_S_DOCUMENT_STR-FUNCTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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