ABAP Select data from SAP table FDTS_WD_DO_LIST_MODEL into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FDTS_WD_DO_LIST_MODEL
*  INTO TABLE @DATA(IT_FDTS_WD_DO_LIST_MODEL2).
*--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_FDTS_WD_DO_LIST_MODEL INDEX 1 INTO DATA(WA_FDTS_WD_DO_LIST_MODEL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FDTS_WD_DO_LIST_MODEL>-NAME = 1.
<FDTS_WD_DO_LIST_MODEL>-STEXT = 1.
<FDTS_WD_DO_LIST_MODEL>-TYPE = 1.
<FDTS_WD_DO_LIST_MODEL>-ELEMENT_TYPE = 1.
<FDTS_WD_DO_LIST_MODEL>-DDIC_TYPENAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FDTS_WD_DO_LIST_MODEL-DDIC_SHELP_TYPE, sy-vline,
  WA_FDTS_WD_DO_LIST_MODEL-REF_ELEMENT_ID, sy-vline,
  WA_FDTS_WD_DO_LIST_MODEL-REF_ELEMENT_NAME, sy-vline,
  WA_FDTS_WD_DO_LIST_MODEL-LENGTH, sy-vline,
  WA_FDTS_WD_DO_LIST_MODEL-DECIMALS, sy-vline,
  WA_FDTS_WD_DO_LIST_MODEL-ONLY_POSITIVE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FDTS_WD_DO_LIST_MODEL 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_FDTS_WD_DO_LIST_MODEL 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_FDTS_WD_DO_LIST_MODEL INTO WA_FDTS_WD_DO_LIST_MODEL.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FDTS_WD_DO_LIST_MODEL_STR, 
NAME TYPE STRING,
STEXT TYPE STRING,
TYPE TYPE STRING,
ELEMENT_TYPE TYPE STRING,
DDIC_TYPENAME TYPE STRING,
DDIC_SHELP_TYPE TYPE STRING,
REF_ELEMENT_ID TYPE STRING,
REF_ELEMENT_NAME TYPE STRING,
LENGTH TYPE STRING,
DECIMALS TYPE STRING,
ONLY_POSITIVE TYPE STRING,
QUANTITY_DIMENSION TYPE STRING,
TIMEPOINT_TYPES TYPE STRING,
READ_ONLY_REF_ELEMENT TYPE STRING,
READ_ONLY_DDIC TYPE STRING,
READ_ONLY_ELEMENT_TYPE TYPE STRING,
READ_ONLY_LENGTH TYPE STRING,
READ_ONLY_DECIMALS TYPE STRING,
READ_ONLY_ONLY_POSITIVE TYPE STRING,
READ_ONLY_QUANTITY_DIMENSION TYPE STRING,
READ_ONLY_TIMEPOINT_TYPES TYPE STRING,
CELL_DESIGN_NAME TYPE STRING,
CELL_DESIGN_REF_ELEMENT_NAME TYPE STRING,
CELL_DESIGN_DDIC_TYPENAME TYPE STRING,
APPL_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FDTS_WD_DO_LIST_MODEL_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_FDTS_WD_DO_LIST_MODEL_STR-NAME sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-STEXT sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-TYPE sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-ELEMENT_TYPE sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-DDIC_TYPENAME sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-DDIC_SHELP_TYPE sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-REF_ELEMENT_ID sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-REF_ELEMENT_NAME sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-LENGTH sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-DECIMALS sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-ONLY_POSITIVE sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-QUANTITY_DIMENSION sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-TIMEPOINT_TYPES sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-READ_ONLY_REF_ELEMENT sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-READ_ONLY_DDIC sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-READ_ONLY_ELEMENT_TYPE sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-READ_ONLY_LENGTH sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-READ_ONLY_DECIMALS sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-READ_ONLY_ONLY_POSITIVE sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-READ_ONLY_QUANTITY_DIMENSION sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-READ_ONLY_TIMEPOINT_TYPES sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-CELL_DESIGN_NAME sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-CELL_DESIGN_REF_ELEMENT_NAME sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-CELL_DESIGN_DDIC_TYPENAME sy-vline 
WA_FDTS_WD_DO_LIST_MODEL_STR-APPL_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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