ABAP Select data from SAP table EDEXTASK_DISPLAY_OBJECT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EDEXTASK_DISPLAY_OBJECT
*  INTO TABLE @DATA(IT_EDEXTASK_DISPLAY_OBJECT2).
*--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_EDEXTASK_DISPLAY_OBJECT INDEX 1 INTO DATA(WA_EDEXTASK_DISPLAY_OBJECT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EDEXTASK_DISPLAY_OBJECT>-CONTROL = 1.
<EDEXTASK_DISPLAY_OBJECT>-GRID_CONTROLS = 1.
<EDEXTASK_DISPLAY_OBJECT>-GRID_CONTAINER = 1.
<EDEXTASK_DISPLAY_OBJECT>-GRID = 1.
<EDEXTASK_DISPLAY_OBJECT>-REFRESH_GRID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EDEXTASK_DISPLAY_OBJECT-LAST_CONTAINER, sy-vline,
  WA_EDEXTASK_DISPLAY_OBJECT-WMODE, sy-vline,
  WA_EDEXTASK_DISPLAY_OBJECT-OPEN_WMODE, sy-vline,
  WA_EDEXTASK_DISPLAY_OBJECT-UPD_ONLINE, sy-vline,
  WA_EDEXTASK_DISPLAY_OBJECT-NO_DIALOG, sy-vline,
  WA_EDEXTASK_DISPLAY_OBJECT-NUM_RANGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EDEXTASK_DISPLAY_OBJECT 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_EDEXTASK_DISPLAY_OBJECT 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_EDEXTASK_DISPLAY_OBJECT INTO WA_EDEXTASK_DISPLAY_OBJECT.


*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_EDEXTASK_DISPLAY_OBJECT_STR, 
CONTROL TYPE STRING,
GRID_CONTROLS TYPE STRING,
GRID_CONTAINER TYPE STRING,
GRID TYPE STRING,
REFRESH_GRID TYPE STRING,
LAST_CONTAINER TYPE STRING,
WMODE TYPE STRING,
OPEN_WMODE TYPE STRING,
UPD_ONLINE TYPE STRING,
NO_DIALOG TYPE STRING,
NUM_RANGE TYPE STRING,
NO_CHANGE TYPE STRING,
NO_OTHER TYPE STRING,
NO_EVENT TYPE STRING,
NO_STATISTIC TYPE STRING,
NO_CHANGE_DOC TYPE STRING,
CALLED_BY_IDOC TYPE STRING,
PROPRICE TYPE STRING,
INPERR TYPE STRING,
ENQ_DONE TYPE STRING,
CURFIELD TYPE STRING,
CURLINE TYPE STRING,
CURDYNNR TYPE STRING,
SETCURFIELD TYPE STRING,
SETCURLINE TYPE STRING,
SETCURDYNNR TYPE STRING,
TEXT_CHANGED TYPE STRING,
EXTINTKZ TYPE STRING,
EXIT_TYPE TYPE STRING,
FULLSCREEN TYPE STRING,
SAVE_OKCODE TYPE STRING,
TEILOBJ TYPE STRING,
S_FUBA TYPE STRING,
INPUT_FIELD_OFF TYPE STRING,
NOFULLSCREEN TYPE STRING,
DB_UPDATE TYPE STRING,
CHANGEFLAG TYPE STRING,
WA_ADR_DONE TYPE STRING,
IEDEXTASK_OBJ TYPE STRING,
MAX_RECORDS TYPE STRING,
IDEXTASKID TYPE STRING,
ISEL_IDOCNUM TYPE STRING,
ISEL_DEXIDOCSTAT TYPE STRING,
ISEL_INT_UI TYPE STRING,
ISEL_DEXPROC TYPE STRING,
ISEL_DEXSERVPROV TYPE STRING,
ISEL_DEXSERVPROVSELF TYPE STRING,
ISEL_DEXSTATUS TYPE STRING,
ISEL_DEXDUEDATE TYPE STRING,
ISEL_DEXDUETIME TYPE STRING,
ISEL_DEXMSGCONFSTATE TYPE STRING,
ISEL_DEXEXTTASKID TYPE STRING,
ISEL_MSGNO TYPE STRING,
ISEL_MSGID TYPE STRING,
ISEL_REFERENCE_VALUE TYPE STRING,
REFERENCE_ID TYPE STRING,
NO_CORRECTED TYPE STRING,
SORT_BY_DUEDATE TYPE STRING,
LIMITED_BY_DUEDATE TYPE STRING,
DATA TYPE STRING,
IEDEXTASK_DATA TYPE STRING,
IEDEXTASK_DB_DATA TYPE STRING,
SCREEN TYPE STRING,
IEDEXTASK_ALV_DATA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EDEXTASK_DISPLAY_OBJECT_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_EDEXTASK_DISPLAY_OBJECT_STR-CONTROL sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-GRID_CONTROLS sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-GRID_CONTAINER sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-GRID sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-REFRESH_GRID sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-LAST_CONTAINER sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-WMODE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-OPEN_WMODE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-UPD_ONLINE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-NO_DIALOG sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-NUM_RANGE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-NO_CHANGE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-NO_OTHER sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-NO_EVENT sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-NO_STATISTIC sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-NO_CHANGE_DOC sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-CALLED_BY_IDOC sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-PROPRICE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-INPERR sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-ENQ_DONE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-CURFIELD sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-CURLINE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-CURDYNNR sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-SETCURFIELD sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-SETCURLINE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-SETCURDYNNR sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-TEXT_CHANGED sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-EXTINTKZ sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-EXIT_TYPE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-FULLSCREEN sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-SAVE_OKCODE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-TEILOBJ sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-S_FUBA sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-INPUT_FIELD_OFF sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-NOFULLSCREEN sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-DB_UPDATE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-CHANGEFLAG sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-WA_ADR_DONE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-IEDEXTASK_OBJ sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-MAX_RECORDS sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-IDEXTASKID sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-ISEL_IDOCNUM sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-ISEL_DEXIDOCSTAT sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-ISEL_INT_UI sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-ISEL_DEXPROC sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-ISEL_DEXSERVPROV sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-ISEL_DEXSERVPROVSELF sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-ISEL_DEXSTATUS sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-ISEL_DEXDUEDATE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-ISEL_DEXDUETIME sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-ISEL_DEXMSGCONFSTATE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-ISEL_DEXEXTTASKID sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-ISEL_MSGNO sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-ISEL_MSGID sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-ISEL_REFERENCE_VALUE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-REFERENCE_ID sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-NO_CORRECTED sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-SORT_BY_DUEDATE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-LIMITED_BY_DUEDATE sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-DATA sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-IEDEXTASK_DATA sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-IEDEXTASK_DB_DATA sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-SCREEN sy-vline 
WA_EDEXTASK_DISPLAY_OBJECT_STR-IEDEXTASK_ALV_DATA sy-vline      INTO ld_text SEPARATED BY SPACE.

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