ABAP Select data from SAP table /DSD/DE_FUPREC_L_S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /DSD/DE_FUPREC_L_S 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 /DSD/DE_FUPREC_L_S. 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 /DSD/DE_FUPREC_L_S 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_/DSD/DE_FUPREC_L_S TYPE STANDARD TABLE OF /DSD/DE_FUPREC_L_S,
      WA_/DSD/DE_FUPREC_L_S TYPE /DSD/DE_FUPREC_L_S,
      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: </DSD/DE_FUPREC_L_S> TYPE /DSD/DE_FUPREC_L_S.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /DSD/DE_FUPREC_L_S
  INTO TABLE IT_/DSD/DE_FUPREC_L_S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /DSD/DE_FUPREC_L_S
*  INTO TABLE @DATA(IT_/DSD/DE_FUPREC_L_S2).
*--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_/DSD/DE_FUPREC_L_S INDEX 1 INTO DATA(WA_/DSD/DE_FUPREC_L_S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/DSD/DE_FUPREC_L_S ASSIGNING </DSD/DE_FUPREC_L_S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</DSD/DE_FUPREC_L_S>-MARK = 1.
</DSD/DE_FUPREC_L_S>-DOC_TYP = 1.
</DSD/DE_FUPREC_L_S>-DOC_ID = 1.
</DSD/DE_FUPREC_L_S>-ROUTE = 1.
</DSD/DE_FUPREC_L_S>-ROUTBEZ = 1.

ENDLOOP.

LOOP AT IT_/DSD/DE_FUPREC_L_S INTO WA_/DSD/DE_FUPREC_L_S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/DSD/DE_FUPREC_L_S-DRIVER1, sy-vline,
  WA_/DSD/DE_FUPREC_L_S-DRIV1NAME, sy-vline,
  WA_/DSD/DE_FUPREC_L_S-DRIVER2, sy-vline,
  WA_/DSD/DE_FUPREC_L_S-DRIV2NAME, sy-vline,
  WA_/DSD/DE_FUPREC_L_S-VEHICLE, sy-vline,
  WA_/DSD/DE_FUPREC_L_S-VEHICLE_NAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/DSD/DE_FUPREC_L_S 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_/DSD/DE_FUPREC_L_S 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_/DSD/DE_FUPREC_L_S INTO WA_/DSD/DE_FUPREC_L_S.


*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 DOC_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/DSD/DE_FUPREC_L_S-DOC_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/DSD/DE_FUPREC_L_S-DOC_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DRIVER1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/DSD/DE_FUPREC_L_S-DRIVER1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/DSD/DE_FUPREC_L_S-DRIVER1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DRIVER2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/DSD/DE_FUPREC_L_S-DRIVER2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/DSD/DE_FUPREC_L_S-DRIVER2.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field VPID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/DSD/DE_FUPREC_L_S-VPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/DSD/DE_FUPREC_L_S-VPID.
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_/DSD/DE_FUPREC_L_S_STR, 
MARK TYPE STRING,
DOC_TYP TYPE STRING,
DOC_ID TYPE STRING,
ROUTE TYPE STRING,
ROUTBEZ TYPE STRING,
DRIVER1 TYPE STRING,
DRIV1NAME TYPE STRING,
DRIVER2 TYPE STRING,
DRIV2NAME TYPE STRING,
VEHICLE TYPE STRING,
VEHICLE_NAME TYPE STRING,
TRAILER TYPE STRING,
TRAILER_NAME TYPE STRING,
EXDAT TYPE STRING,
VPID TYPE STRING,
VCTEXT TYPE STRING,
VPTYP TYPE STRING,
AUTH TYPE STRING,
SHTYP TYPE STRING,
TPLST TYPE STRING,
STTRG TYPE STRING,
NODEKEY TYPE STRING,
NODEKEY_PARENT TYPE STRING,
ROOT_NODE_FLAG TYPE STRING,
TOUR_STATUS TYPE STRING,
ST_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/DSD/DE_FUPREC_L_S_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_/DSD/DE_FUPREC_L_S_STR-MARK sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-DOC_TYP sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-DOC_ID sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-ROUTE sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-ROUTBEZ sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-DRIVER1 sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-DRIV1NAME sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-DRIVER2 sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-DRIV2NAME sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-VEHICLE sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-VEHICLE_NAME sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-TRAILER sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-TRAILER_NAME sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-EXDAT sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-VPID sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-VCTEXT sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-VPTYP sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-AUTH sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-SHTYP sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-TPLST sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-STTRG sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-NODEKEY sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-NODEKEY_PARENT sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-ROOT_NODE_FLAG sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-TOUR_STATUS sy-vline 
WA_/DSD/DE_FUPREC_L_S_STR-ST_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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