ABAP Select data from SAP table FDTS_WD_QUERY_OBJECT_C_TBL 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_QUERY_OBJECT_C_TBL 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_QUERY_OBJECT_C_TBL. 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_QUERY_OBJECT_C_TBL 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_QUERY_OBJECT_C_TBL TYPE STANDARD TABLE OF FDTS_WD_QUERY_OBJECT_C_TBL,
      WA_FDTS_WD_QUERY_OBJECT_C_TBL TYPE FDTS_WD_QUERY_OBJECT_C_TBL,
      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_QUERY_OBJECT_C_TBL> TYPE FDTS_WD_QUERY_OBJECT_C_TBL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FDTS_WD_QUERY_OBJECT_C_TBL
*  INTO TABLE @DATA(IT_FDTS_WD_QUERY_OBJECT_C_TBL2).
*--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_QUERY_OBJECT_C_TBL INDEX 1 INTO DATA(WA_FDTS_WD_QUERY_OBJECT_C_TBL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FDTS_WD_QUERY_OBJECT_C_TBL>-ID = 1.
<FDTS_WD_QUERY_OBJECT_C_TBL>-APPL_ID = 1.
<FDTS_WD_QUERY_OBJECT_C_TBL>-OBJECT_TYPE = 1.
<FDTS_WD_QUERY_OBJECT_C_TBL>-OBJECT_TYPE_ICON = 1.
<FDTS_WD_QUERY_OBJECT_C_TBL>-OBJECT_SUBTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FDTS_WD_QUERY_OBJECT_C_TBL-OBJECT_SUBTYPE_DESCR, sy-vline,
  WA_FDTS_WD_QUERY_OBJECT_C_TBL-NAME, sy-vline,
  WA_FDTS_WD_QUERY_OBJECT_C_TBL-DISPLAY_NAME, sy-vline,
  WA_FDTS_WD_QUERY_OBJECT_C_TBL-TEXT, sy-vline,
  WA_FDTS_WD_QUERY_OBJECT_C_TBL-SHORT_TEXT, sy-vline,
  WA_FDTS_WD_QUERY_OBJECT_C_TBL-POS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FDTS_WD_QUERY_OBJECT_C_TBL 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_QUERY_OBJECT_C_TBL 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_QUERY_OBJECT_C_TBL INTO WA_FDTS_WD_QUERY_OBJECT_C_TBL.


*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_QUERY_OBJECT_C_TBL_STR, 
ID TYPE STRING,
APPL_ID TYPE STRING,
OBJECT_TYPE TYPE STRING,
OBJECT_TYPE_ICON TYPE STRING,
OBJECT_SUBTYPE TYPE STRING,
OBJECT_SUBTYPE_DESCR TYPE STRING,
NAME TYPE STRING,
DISPLAY_NAME TYPE STRING,
TEXT TYPE STRING,
SHORT_TEXT TYPE STRING,
POS TYPE STRING,
OBJECT_TYPE_DESCRIPTION TYPE STRING,
TOOLTIP TYPE STRING,
APPL_DISPLAY_NAME TYPE STRING,
APPL_NAME TYPE STRING,
DATA_OBJECT_TYPE TYPE STRING,
EXPR_TYPE_ID TYPE STRING,
ELEMENT_TYPE TYPE STRING,
CR_USER TYPE STRING,
CR_TIMESTAMP TYPE STRING,
CH_USER TYPE STRING,
CH_TIMESTAMP TYPE STRING,
LOCAL_OBJECT TYPE STRING,
MARKED_FOR_DELETE TYPE STRING,
OBSOLETE TYPE STRING,
STATE TYPE STRING,
DELETED TYPE STRING,
SYSTEM_OBJECT TYPE STRING,
APPLICATION_ID TYPE STRING,
CUSTOMIZING_OBJECT TYPE STRING,
MASTERDATA_OBJECT TYPE STRING,
STATE_TEXT TYPE STRING,
SELECTABLE TYPE STRING,
IS_LEAF TYPE STRING,
IS_EXPANDED TYPE STRING,
IS_CHILDREN_LOADED TYPE STRING,
OBJECT_CATEGORY_TEXT TYPE STRING,
STATE_ICON TYPE STRING,
HIDDEN TYPE STRING,
PARENT_UNIQUE_KEY TYPE STRING,
UNIQUE_KEY TYPE STRING,
PARENT_ID TYPE STRING,
ROW_NO TYPE STRING,
DB_BOUND TYPE STRING,
LEVELNO TYPE STRING,
HIERARCHICAL_STATE TYPE STRING,
HIGHLIGHTED TYPE STRING,
ROWNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FDTS_WD_QUERY_OBJECT_C_TBL_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_QUERY_OBJECT_C_TBL_STR-ID sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-APPL_ID sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-OBJECT_TYPE sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-OBJECT_TYPE_ICON sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-OBJECT_SUBTYPE sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-OBJECT_SUBTYPE_DESCR sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-NAME sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-DISPLAY_NAME sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-TEXT sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-SHORT_TEXT sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-POS sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-OBJECT_TYPE_DESCRIPTION sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-TOOLTIP sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-APPL_DISPLAY_NAME sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-APPL_NAME sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-DATA_OBJECT_TYPE sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-EXPR_TYPE_ID sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-ELEMENT_TYPE sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-CR_USER sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-CR_TIMESTAMP sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-CH_USER sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-CH_TIMESTAMP sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-LOCAL_OBJECT sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-MARKED_FOR_DELETE sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-OBSOLETE sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-STATE sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-DELETED sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-SYSTEM_OBJECT sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-APPLICATION_ID sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-CUSTOMIZING_OBJECT sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-MASTERDATA_OBJECT sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-STATE_TEXT sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-SELECTABLE sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-IS_LEAF sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-IS_EXPANDED sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-IS_CHILDREN_LOADED sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-OBJECT_CATEGORY_TEXT sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-STATE_ICON sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-HIDDEN sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-PARENT_UNIQUE_KEY sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-UNIQUE_KEY sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-PARENT_ID sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-ROW_NO sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-DB_BOUND sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-LEVELNO sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-HIERARCHICAL_STATE sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-HIGHLIGHTED sy-vline 
WA_FDTS_WD_QUERY_OBJECT_C_TBL_STR-ROWNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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