ABAP Select data from SAP table RECA_GUI_SETTINGS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RECA_GUI_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 RECA_GUI_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 RECA_GUI_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_RECA_GUI_SETTINGS TYPE STANDARD TABLE OF RECA_GUI_SETTINGS,
      WA_RECA_GUI_SETTINGS TYPE RECA_GUI_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: <RECA_GUI_SETTINGS> TYPE RECA_GUI_SETTINGS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RECA_GUI_SETTINGS
*  INTO TABLE @DATA(IT_RECA_GUI_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_RECA_GUI_SETTINGS INDEX 1 INTO DATA(WA_RECA_GUI_SETTINGS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RECA_GUI_SETTINGS>-ISERRORWINAMODAL = 1.
<RECA_GUI_SETTINGS>-ISERRORWINTREE = 1.
<RECA_GUI_SETTINGS>-USESYSTEMSETTINGS = 1.
<RECA_GUI_SETTINGS>-STARTSCREEN = 1.
<RECA_GUI_SETTINGS>-USESTANDARDICONS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RECA_GUI_SETTINGS-ISNAVIGATORHIDDEN, sy-vline,
  WA_RECA_GUI_SETTINGS-NAVIGATORTYPE, sy-vline,
  WA_RECA_GUI_SETTINGS-HIDDENNAVTOOLS, sy-vline,
  WA_RECA_GUI_SETTINGS-ISDIRECTDISPLAY, sy-vline,
  WA_RECA_GUI_SETTINGS-NUMBEROFLUSED, sy-vline,
  WA_RECA_GUI_SETTINGS-HIDESUBOBJECTS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RECA_GUI_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_RECA_GUI_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_RECA_GUI_SETTINGS INTO WA_RECA_GUI_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.
ENDFORM. 

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

TYPES: BEGIN OF T_RECA_GUI_SETTINGS_STR, 
ISERRORWINAMODAL TYPE STRING,
ISERRORWINTREE TYPE STRING,
USESYSTEMSETTINGS TYPE STRING,
STARTSCREEN TYPE STRING,
USESTANDARDICONS TYPE STRING,
ISNAVIGATORHIDDEN TYPE STRING,
NAVIGATORTYPE TYPE STRING,
HIDDENNAVTOOLS TYPE STRING,
ISDIRECTDISPLAY TYPE STRING,
NUMBEROFLUSED TYPE STRING,
HIDESUBOBJECTS TYPE STRING,
SHOWMODE TYPE STRING,
STAYCHGAFTERSTORE TYPE STRING,
FILTEROBJTYPESSEL TYPE STRING,
BDTHEADER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RECA_GUI_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_RECA_GUI_SETTINGS_STR-ISERRORWINAMODAL sy-vline 
WA_RECA_GUI_SETTINGS_STR-ISERRORWINTREE sy-vline 
WA_RECA_GUI_SETTINGS_STR-USESYSTEMSETTINGS sy-vline 
WA_RECA_GUI_SETTINGS_STR-STARTSCREEN sy-vline 
WA_RECA_GUI_SETTINGS_STR-USESTANDARDICONS sy-vline 
WA_RECA_GUI_SETTINGS_STR-ISNAVIGATORHIDDEN sy-vline 
WA_RECA_GUI_SETTINGS_STR-NAVIGATORTYPE sy-vline 
WA_RECA_GUI_SETTINGS_STR-HIDDENNAVTOOLS sy-vline 
WA_RECA_GUI_SETTINGS_STR-ISDIRECTDISPLAY sy-vline 
WA_RECA_GUI_SETTINGS_STR-NUMBEROFLUSED sy-vline 
WA_RECA_GUI_SETTINGS_STR-HIDESUBOBJECTS sy-vline 
WA_RECA_GUI_SETTINGS_STR-SHOWMODE sy-vline 
WA_RECA_GUI_SETTINGS_STR-STAYCHGAFTERSTORE sy-vline 
WA_RECA_GUI_SETTINGS_STR-FILTEROBJTYPESSEL sy-vline 
WA_RECA_GUI_SETTINGS_STR-BDTHEADER sy-vline      INTO ld_text SEPARATED BY SPACE.

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