ABAP Select data from SAP table IWOS_SETTINGS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IWOS_SETTINGS
*  INTO TABLE @DATA(IT_IWOS_SETTINGS2).
*--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_IWOS_SETTINGS INDEX 1 INTO DATA(WA_IWOS_SETTINGS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IWOS_SETTINGS>-AUART = 1.
<IWOS_SETTINGS>-IWERK = 1.
<IWOS_SETTINGS>-AKTYP = 1.
<IWOS_SETTINGS>-PROFILE = 1.
<IWOS_SETTINGS>-NOTABSTRIPS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IWOS_SETTINGS-HEADERSCREEN_PROG, sy-vline,
  WA_IWOS_SETTINGS-HEADERSCREEN, sy-vline,
  WA_IWOS_SETTINGS-TABSTRIPS, sy-vline,
  WA_IWOS_SETTINGS-HEADERSCREEN_PROG_FRAMED, sy-vline,
  WA_IWOS_SETTINGS-HEADERSCREEN_FRAMED, sy-vline,
  WA_IWOS_SETTINGS-SIMPLEVIEW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IWOS_SETTINGS 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_IWOS_SETTINGS 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_IWOS_SETTINGS INTO WA_IWOS_SETTINGS.


*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 GUI_TITLE_V2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IWOS_SETTINGS-GUI_TITLE_V2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IWOS_SETTINGS-GUI_TITLE_V2.
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_IWOS_SETTINGS_STR, 
AUART TYPE STRING,
IWERK TYPE STRING,
AKTYP TYPE STRING,
PROFILE TYPE STRING,
NOTABSTRIPS TYPE STRING,
HEADERSCREEN_PROG TYPE STRING,
HEADERSCREEN TYPE STRING,
TABSTRIPS TYPE STRING,
HEADERSCREEN_PROG_FRAMED TYPE STRING,
HEADERSCREEN_FRAMED TYPE STRING,
SIMPLEVIEW TYPE STRING,
ORDNR TYPE STRING,
ACTIVE TYPE STRING,
ICON TYPE STRING,
TEXT TYPE STRING,
FRAME TYPE STRING,
SLOT1 TYPE STRING,
DYNPROG TYPE STRING,
DYNNR TYPE STRING,
CHARACTERISTICS TYPE STRING,
SLOT2 TYPE STRING,
DYNPROG TYPE STRING,
DYNNR TYPE STRING,
CHARACTERISTICS TYPE STRING,
SLOT3 TYPE STRING,
DYNPROG TYPE STRING,
DYNNR TYPE STRING,
CHARACTERISTICS TYPE STRING,
SLOT4 TYPE STRING,
DYNPROG TYPE STRING,
DYNNR TYPE STRING,
CHARACTERISTICS TYPE STRING,
SLOT5 TYPE STRING,
DYNPROG TYPE STRING,
DYNNR TYPE STRING,
CHARACTERISTICS TYPE STRING,
SLOT6 TYPE STRING,
DYNPROG TYPE STRING,
DYNNR TYPE STRING,
CHARACTERISTICS TYPE STRING,
SLOT7 TYPE STRING,
DYNPROG TYPE STRING,
DYNNR TYPE STRING,
CHARACTERISTICS TYPE STRING,
SLOT8 TYPE STRING,
DYNPROG TYPE STRING,
DYNNR TYPE STRING,
CHARACTERISTICS TYPE STRING,
NAVIGATION TYPE STRING,
STATUS_PROG TYPE STRING,
STATUS TYPE STRING,
CURRENT_TAB TYPE STRING,
ORDNR TYPE STRING,
ACTIVE TYPE STRING,
ICON TYPE STRING,
TEXT TYPE STRING,
FRAME TYPE STRING,
SLOT1 TYPE STRING,
DYNPROG TYPE STRING,
DYNNR TYPE STRING,
CHARACTERISTICS TYPE STRING,
SLOT2 TYPE STRING,
DYNPROG TYPE STRING,
DYNNR TYPE STRING,
CHARACTERISTICS TYPE STRING,
SLOT3 TYPE STRING,
DYNPROG TYPE STRING,
DYNNR TYPE STRING,
CHARACTERISTICS TYPE STRING,
SLOT4 TYPE STRING,
DYNPROG TYPE STRING,
DYNNR TYPE STRING,
CHARACTERISTICS TYPE STRING,
SLOT5 TYPE STRING,
DYNPROG TYPE STRING,
DYNNR TYPE STRING,
CHARACTERISTICS TYPE STRING,
SLOT6 TYPE STRING,
DYNPROG TYPE STRING,
DYNNR TYPE STRING,
CHARACTERISTICS TYPE STRING,
SLOT7 TYPE STRING,
DYNPROG TYPE STRING,
DYNNR TYPE STRING,
CHARACTERISTICS TYPE STRING,
SLOT8 TYPE STRING,
DYNPROG TYPE STRING,
DYNNR TYPE STRING,
CHARACTERISTICS TYPE STRING,
PRESSED_TAB TYPE STRING,
ACTIVE_TAB TYPE STRING,
ACTIVITYTYPE TYPE STRING,
GUI_TITLE TYPE STRING,
GUI_TITLE_V1 TYPE STRING,
GUI_TITLE_V2 TYPE STRING,
GUI_TITLE_V3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IWOS_SETTINGS_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_IWOS_SETTINGS_STR-AUART sy-vline 
WA_IWOS_SETTINGS_STR-IWERK sy-vline 
WA_IWOS_SETTINGS_STR-AKTYP sy-vline 
WA_IWOS_SETTINGS_STR-PROFILE sy-vline 
WA_IWOS_SETTINGS_STR-NOTABSTRIPS sy-vline 
WA_IWOS_SETTINGS_STR-HEADERSCREEN_PROG sy-vline 
WA_IWOS_SETTINGS_STR-HEADERSCREEN sy-vline 
WA_IWOS_SETTINGS_STR-TABSTRIPS sy-vline 
WA_IWOS_SETTINGS_STR-HEADERSCREEN_PROG_FRAMED sy-vline 
WA_IWOS_SETTINGS_STR-HEADERSCREEN_FRAMED sy-vline 
WA_IWOS_SETTINGS_STR-SIMPLEVIEW sy-vline 
WA_IWOS_SETTINGS_STR-ORDNR sy-vline 
WA_IWOS_SETTINGS_STR-ACTIVE sy-vline 
WA_IWOS_SETTINGS_STR-ICON sy-vline 
WA_IWOS_SETTINGS_STR-TEXT sy-vline 
WA_IWOS_SETTINGS_STR-FRAME sy-vline 
WA_IWOS_SETTINGS_STR-SLOT1 sy-vline 
WA_IWOS_SETTINGS_STR-DYNPROG sy-vline 
WA_IWOS_SETTINGS_STR-DYNNR sy-vline 
WA_IWOS_SETTINGS_STR-CHARACTERISTICS sy-vline 
WA_IWOS_SETTINGS_STR-SLOT2 sy-vline 
WA_IWOS_SETTINGS_STR-DYNPROG sy-vline 
WA_IWOS_SETTINGS_STR-DYNNR sy-vline 
WA_IWOS_SETTINGS_STR-CHARACTERISTICS sy-vline 
WA_IWOS_SETTINGS_STR-SLOT3 sy-vline 
WA_IWOS_SETTINGS_STR-DYNPROG sy-vline 
WA_IWOS_SETTINGS_STR-DYNNR sy-vline 
WA_IWOS_SETTINGS_STR-CHARACTERISTICS sy-vline 
WA_IWOS_SETTINGS_STR-SLOT4 sy-vline 
WA_IWOS_SETTINGS_STR-DYNPROG sy-vline 
WA_IWOS_SETTINGS_STR-DYNNR sy-vline 
WA_IWOS_SETTINGS_STR-CHARACTERISTICS sy-vline 
WA_IWOS_SETTINGS_STR-SLOT5 sy-vline 
WA_IWOS_SETTINGS_STR-DYNPROG sy-vline 
WA_IWOS_SETTINGS_STR-DYNNR sy-vline 
WA_IWOS_SETTINGS_STR-CHARACTERISTICS sy-vline 
WA_IWOS_SETTINGS_STR-SLOT6 sy-vline 
WA_IWOS_SETTINGS_STR-DYNPROG sy-vline 
WA_IWOS_SETTINGS_STR-DYNNR sy-vline 
WA_IWOS_SETTINGS_STR-CHARACTERISTICS sy-vline 
WA_IWOS_SETTINGS_STR-SLOT7 sy-vline 
WA_IWOS_SETTINGS_STR-DYNPROG sy-vline 
WA_IWOS_SETTINGS_STR-DYNNR sy-vline 
WA_IWOS_SETTINGS_STR-CHARACTERISTICS sy-vline 
WA_IWOS_SETTINGS_STR-SLOT8 sy-vline 
WA_IWOS_SETTINGS_STR-DYNPROG sy-vline 
WA_IWOS_SETTINGS_STR-DYNNR sy-vline 
WA_IWOS_SETTINGS_STR-CHARACTERISTICS sy-vline 
WA_IWOS_SETTINGS_STR-NAVIGATION sy-vline 
WA_IWOS_SETTINGS_STR-STATUS_PROG sy-vline 
WA_IWOS_SETTINGS_STR-STATUS sy-vline 
WA_IWOS_SETTINGS_STR-CURRENT_TAB sy-vline 
WA_IWOS_SETTINGS_STR-ORDNR sy-vline 
WA_IWOS_SETTINGS_STR-ACTIVE sy-vline 
WA_IWOS_SETTINGS_STR-ICON sy-vline 
WA_IWOS_SETTINGS_STR-TEXT sy-vline 
WA_IWOS_SETTINGS_STR-FRAME sy-vline 
WA_IWOS_SETTINGS_STR-SLOT1 sy-vline 
WA_IWOS_SETTINGS_STR-DYNPROG sy-vline 
WA_IWOS_SETTINGS_STR-DYNNR sy-vline 
WA_IWOS_SETTINGS_STR-CHARACTERISTICS sy-vline 
WA_IWOS_SETTINGS_STR-SLOT2 sy-vline 
WA_IWOS_SETTINGS_STR-DYNPROG sy-vline 
WA_IWOS_SETTINGS_STR-DYNNR sy-vline 
WA_IWOS_SETTINGS_STR-CHARACTERISTICS sy-vline 
WA_IWOS_SETTINGS_STR-SLOT3 sy-vline 
WA_IWOS_SETTINGS_STR-DYNPROG sy-vline 
WA_IWOS_SETTINGS_STR-DYNNR sy-vline 
WA_IWOS_SETTINGS_STR-CHARACTERISTICS sy-vline 
WA_IWOS_SETTINGS_STR-SLOT4 sy-vline 
WA_IWOS_SETTINGS_STR-DYNPROG sy-vline 
WA_IWOS_SETTINGS_STR-DYNNR sy-vline 
WA_IWOS_SETTINGS_STR-CHARACTERISTICS sy-vline 
WA_IWOS_SETTINGS_STR-SLOT5 sy-vline 
WA_IWOS_SETTINGS_STR-DYNPROG sy-vline 
WA_IWOS_SETTINGS_STR-DYNNR sy-vline 
WA_IWOS_SETTINGS_STR-CHARACTERISTICS sy-vline 
WA_IWOS_SETTINGS_STR-SLOT6 sy-vline 
WA_IWOS_SETTINGS_STR-DYNPROG sy-vline 
WA_IWOS_SETTINGS_STR-DYNNR sy-vline 
WA_IWOS_SETTINGS_STR-CHARACTERISTICS sy-vline 
WA_IWOS_SETTINGS_STR-SLOT7 sy-vline 
WA_IWOS_SETTINGS_STR-DYNPROG sy-vline 
WA_IWOS_SETTINGS_STR-DYNNR sy-vline 
WA_IWOS_SETTINGS_STR-CHARACTERISTICS sy-vline 
WA_IWOS_SETTINGS_STR-SLOT8 sy-vline 
WA_IWOS_SETTINGS_STR-DYNPROG sy-vline 
WA_IWOS_SETTINGS_STR-DYNNR sy-vline 
WA_IWOS_SETTINGS_STR-CHARACTERISTICS sy-vline 
WA_IWOS_SETTINGS_STR-PRESSED_TAB sy-vline 
WA_IWOS_SETTINGS_STR-ACTIVE_TAB sy-vline 
WA_IWOS_SETTINGS_STR-ACTIVITYTYPE sy-vline 
WA_IWOS_SETTINGS_STR-GUI_TITLE sy-vline 
WA_IWOS_SETTINGS_STR-GUI_TITLE_V1 sy-vline 
WA_IWOS_SETTINGS_STR-GUI_TITLE_V2 sy-vline 
WA_IWOS_SETTINGS_STR-GUI_TITLE_V3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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