ABAP Select data from SAP table FDTS_WD_CONFIG_MODEL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FDTS_WD_CONFIG_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_CONFIG_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_CONFIG_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_CONFIG_MODEL TYPE STANDARD TABLE OF FDTS_WD_CONFIG_MODEL,
      WA_FDTS_WD_CONFIG_MODEL TYPE FDTS_WD_CONFIG_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_CONFIG_MODEL> TYPE FDTS_WD_CONFIG_MODEL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FDTS_WD_CONFIG_MODEL
*  INTO TABLE @DATA(IT_FDTS_WD_CONFIG_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_CONFIG_MODEL INDEX 1 INTO DATA(WA_FDTS_WD_CONFIG_MODEL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FDTS_WD_CONFIG_MODEL>-LEFT_PANEL_WIDTH = 1.
<FDTS_WD_CONFIG_MODEL>-DISPLAY_MODE = 1.
<FDTS_WD_CONFIG_MODEL>-DISPLAY_TECHNICAL_NAMES = 1.
<FDTS_WD_CONFIG_MODEL>-DISPLAY_LAST_OBJECT = 1.
<FDTS_WD_CONFIG_MODEL>-NUMBER_DISPLAY_OBJECTS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FDTS_WD_CONFIG_MODEL-DELETED, sy-vline,
  WA_FDTS_WD_CONFIG_MODEL-MARKED_FOR_DELETE, sy-vline,
  WA_FDTS_WD_CONFIG_MODEL-OBSOLETE, sy-vline,
  WA_FDTS_WD_CONFIG_MODEL-S_TABLES, sy-vline,
  WA_FDTS_WD_CONFIG_MODEL-A_TABLES, sy-vline,
  WA_FDTS_WD_CONFIG_MODEL-C_TABLES, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FDTS_WD_CONFIG_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_CONFIG_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_CONFIG_MODEL INTO WA_FDTS_WD_CONFIG_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.

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

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

*Conversion exit ALPHA, internal->external for field NUMBER_ROWS_NAV_TREE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FDTS_WD_CONFIG_MODEL-NUMBER_ROWS_NAV_TREE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FDTS_WD_CONFIG_MODEL-NUMBER_ROWS_NAV_TREE.
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_FDTS_WD_CONFIG_MODEL_STR, 
LEFT_PANEL_WIDTH TYPE STRING,
DISPLAY_MODE TYPE STRING,
DISPLAY_TECHNICAL_NAMES TYPE STRING,
DISPLAY_LAST_OBJECT TYPE STRING,
NUMBER_DISPLAY_OBJECTS TYPE STRING,
DELETED TYPE STRING,
MARKED_FOR_DELETE TYPE STRING,
OBSOLETE TYPE STRING,
S_TABLES TYPE STRING,
A_TABLES TYPE STRING,
C_TABLES TYPE STRING,
DEFAULT_CATALOG TYPE STRING,
DEFAULT_APPLICATION TYPE STRING,
DISPLAY_TECHNICAL_ATTRIBUTES TYPE STRING,
DISPLAY_EXCEL_POPUP TYPE STRING,
DISPLAY_DEC_TABLE_DEFINITION TYPE STRING,
DISPLAY_DEC_TABLE_ROW_NUMBERS TYPE STRING,
DISPLAY_REPOSITORY_VIEW TYPE STRING,
DISPLAY_FAVORITES_VIEW TYPE STRING,
DISPLAY_CATALOG_VIEW TYPE STRING,
DISPLAY_HISTORY_VIEW TYPE STRING,
DISPLAY_TECHNICAL_COMPONENTS TYPE STRING,
DISPLAY_XML_SCHEMA TYPE STRING,
DISPLAY_XML_IMPORT_TYPE TYPE STRING,
DISPLAY_REPO_CH_DATE TYPE STRING,
DISPLAY_REPO_LAST_CHANGED TYPE STRING,
LAST_DISPLAYED_OBJECT_ID TYPE STRING,
DEFAULT_VIEW TYPE STRING,
SAVE_BEFORE_NAVIGATION TYPE STRING,
SHOW_DEFAULT_APPLICATION TYPE STRING,
SHOW_ON_STARTUP TYPE STRING,
NUMBER_RULES_EXPANDED TYPE STRING,
NUMBER_ROWS_DEC_TABLE TYPE STRING,
DATETIME_MODE TYPE STRING,
DEFAULT_TAB TYPE STRING,
GENERAL_TRAY_EXPANDED TYPE STRING,
MIN_COLS_FOR_SCROLL_DEC_TAB TYPE STRING,
DISPLAY_TRANSPORT_COLUMN TYPE STRING,
DEFAULT_GROUPING TYPE STRING,
NUMBER_ROWS_NAV_TREE TYPE STRING,
USE_RIA_CONTROLS TYPE STRING,
SHOW_RULESET_HEADER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FDTS_WD_CONFIG_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_CONFIG_MODEL_STR-LEFT_PANEL_WIDTH sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_MODE sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_TECHNICAL_NAMES sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_LAST_OBJECT sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-NUMBER_DISPLAY_OBJECTS sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DELETED sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-MARKED_FOR_DELETE sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-OBSOLETE sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-S_TABLES sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-A_TABLES sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-C_TABLES sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DEFAULT_CATALOG sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DEFAULT_APPLICATION sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_TECHNICAL_ATTRIBUTES sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_EXCEL_POPUP sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_DEC_TABLE_DEFINITION sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_DEC_TABLE_ROW_NUMBERS sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_REPOSITORY_VIEW sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_FAVORITES_VIEW sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_CATALOG_VIEW sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_HISTORY_VIEW sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_TECHNICAL_COMPONENTS sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_XML_SCHEMA sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_XML_IMPORT_TYPE sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_REPO_CH_DATE sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_REPO_LAST_CHANGED sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-LAST_DISPLAYED_OBJECT_ID sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DEFAULT_VIEW sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-SAVE_BEFORE_NAVIGATION sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-SHOW_DEFAULT_APPLICATION sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-SHOW_ON_STARTUP sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-NUMBER_RULES_EXPANDED sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-NUMBER_ROWS_DEC_TABLE sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DATETIME_MODE sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DEFAULT_TAB sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-GENERAL_TRAY_EXPANDED sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-MIN_COLS_FOR_SCROLL_DEC_TAB sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DISPLAY_TRANSPORT_COLUMN sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-DEFAULT_GROUPING sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-NUMBER_ROWS_NAV_TREE sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-USE_RIA_CONTROLS sy-vline 
WA_FDTS_WD_CONFIG_MODEL_STR-SHOW_RULESET_HEADER sy-vline      INTO ld_text SEPARATED BY SPACE.

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