ABAP Select data from SAP table EWAEL_DOCK_OPTIONS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWAEL_DOCK_OPTIONS
*  INTO TABLE @DATA(IT_EWAEL_DOCK_OPTIONS2).
*--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_EWAEL_DOCK_OPTIONS INDEX 1 INTO DATA(WA_EWAEL_DOCK_OPTIONS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWAEL_DOCK_OPTIONS>-CONTAINERCOUNT = 1.
<EWAEL_DOCK_OPTIONS>-MOVABLE = 1.
<EWAEL_DOCK_OPTIONS>-DOCKING = 1.
<EWAEL_DOCK_OPTIONS>-INITIALSIZE = 1.
<EWAEL_DOCK_OPTIONS>-DOCKSIDE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWAEL_DOCK_OPTIONS-SPLITVERTICAL, sy-vline,
  WA_EWAEL_DOCK_OPTIONS-TOOLWINDOW, sy-vline,
  WA_EWAEL_DOCK_OPTIONS-INITIALTOOLSIZE, sy-vline,
  WA_EWAEL_DOCK_OPTIONS-TOOLMOVABLE, sy-vline,
  WA_EWAEL_DOCK_OPTIONS-HASTITLEBAR, sy-vline,
  WA_EWAEL_DOCK_OPTIONS-HASSTATUSBAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EWAEL_DOCK_OPTIONS 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_EWAEL_DOCK_OPTIONS 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_EWAEL_DOCK_OPTIONS INTO WA_EWAEL_DOCK_OPTIONS.


*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_EWAEL_DOCK_OPTIONS_STR, 
CONTAINERCOUNT TYPE STRING,
MOVABLE TYPE STRING,
DOCKING TYPE STRING,
INITIALSIZE TYPE STRING,
DOCKSIDE TYPE STRING,
SPLITVERTICAL TYPE STRING,
TOOLWINDOW TYPE STRING,
INITIALTOOLSIZE TYPE STRING,
TOOLMOVABLE TYPE STRING,
HASTITLEBAR TYPE STRING,
HASSTATUSBAR TYPE STRING,
TITLESIZE TYPE STRING,
STATUSSIZE TYPE STRING,
TITLETEXTSIZE TYPE STRING,
STATUSTEXTSIZE TYPE STRING,
TITLETEXT TYPE STRING,
STATUSTEXT TYPE STRING,
TITLEBACKCOLOR TYPE STRING,
STATUSBACKCOLOR TYPE STRING,
TITLETEXTCOLOR TYPE STRING,
STATUSTEXTCOLOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWAEL_DOCK_OPTIONS_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_EWAEL_DOCK_OPTIONS_STR-CONTAINERCOUNT sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-MOVABLE sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-DOCKING sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-INITIALSIZE sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-DOCKSIDE sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-SPLITVERTICAL sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-TOOLWINDOW sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-INITIALTOOLSIZE sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-TOOLMOVABLE sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-HASTITLEBAR sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-HASSTATUSBAR sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-TITLESIZE sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-STATUSSIZE sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-TITLETEXTSIZE sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-STATUSTEXTSIZE sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-TITLETEXT sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-STATUSTEXT sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-TITLEBACKCOLOR sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-STATUSBACKCOLOR sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-TITLETEXTCOLOR sy-vline 
WA_EWAEL_DOCK_OPTIONS_STR-STATUSTEXTCOLOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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