ABAP Select data from SAP table /IXOS/DC_SA_WD_SELECTION into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP /IXOS/DC_SA_WD_SELECTION 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 /IXOS/DC_SA_WD_SELECTION. 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 /IXOS/DC_SA_WD_SELECTION 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_/IXOS/DC_SA_WD_SELECTION TYPE STANDARD TABLE OF /IXOS/DC_SA_WD_SELECTION,
      WA_/IXOS/DC_SA_WD_SELECTION TYPE /IXOS/DC_SA_WD_SELECTION,
      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: </IXOS/DC_SA_WD_SELECTION> TYPE /IXOS/DC_SA_WD_SELECTION.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /IXOS/DC_SA_WD_SELECTION
  INTO TABLE IT_/IXOS/DC_SA_WD_SELECTION.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /IXOS/DC_SA_WD_SELECTION
*  INTO TABLE @DATA(IT_/IXOS/DC_SA_WD_SELECTION2).
*--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_/IXOS/DC_SA_WD_SELECTION INDEX 1 INTO DATA(WA_/IXOS/DC_SA_WD_SELECTION2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/IXOS/DC_SA_WD_SELECTION ASSIGNING </IXOS/DC_SA_WD_SELECTION>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</IXOS/DC_SA_WD_SELECTION>-SELFIELD = 1.
</IXOS/DC_SA_WD_SELECTION>-TABNAME = 1.
</IXOS/DC_SA_WD_SELECTION>-FIELDNAME = 1.
</IXOS/DC_SA_WD_SELECTION>-DATASOURCE = 1.
</IXOS/DC_SA_WD_SELECTION>-SINGLE = 1.

ENDLOOP.

LOOP AT IT_/IXOS/DC_SA_WD_SELECTION INTO WA_/IXOS/DC_SA_WD_SELECTION.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/IXOS/DC_SA_WD_SELECTION-NOEXTENSIO, sy-vline,
  WA_/IXOS/DC_SA_WD_SELECTION-OBLIGATORY, sy-vline,
  WA_/IXOS/DC_SA_WD_SELECTION-INPUTLEN, sy-vline,
  WA_/IXOS/DC_SA_WD_SELECTION-SEARCHHELP, sy-vline,
  WA_/IXOS/DC_SA_WD_SELECTION-MEMORYID, sy-vline,
  WA_/IXOS/DC_SA_WD_SELECTION-DESCR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/IXOS/DC_SA_WD_SELECTION 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_/IXOS/DC_SA_WD_SELECTION 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_/IXOS/DC_SA_WD_SELECTION INTO WA_/IXOS/DC_SA_WD_SELECTION.


*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_/IXOS/DC_SA_WD_SELECTION_STR, 
SELFIELD TYPE STRING,
TABNAME TYPE STRING,
FIELDNAME TYPE STRING,
DATASOURCE TYPE STRING,
SINGLE TYPE STRING,
NOEXTENSIO TYPE STRING,
OBLIGATORY TYPE STRING,
INPUTLEN TYPE STRING,
SEARCHHELP TYPE STRING,
MEMORYID TYPE STRING,
DESCR TYPE STRING,
FIELDSEL TYPE STRING,
SELECTTEXT TYPE STRING,
SKIP TYPE STRING,
MARK TYPE STRING,
KEYFLAG TYPE STRING,
SCRBLOCK TYPE STRING,
BLOCK_DESC TYPE STRING,
SELLINKTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/IXOS/DC_SA_WD_SELECTION_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_/IXOS/DC_SA_WD_SELECTION_STR-SELFIELD sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-TABNAME sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-FIELDNAME sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-DATASOURCE sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-SINGLE sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-NOEXTENSIO sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-OBLIGATORY sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-INPUTLEN sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-SEARCHHELP sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-MEMORYID sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-DESCR sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-FIELDSEL sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-SELECTTEXT sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-SKIP sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-MARK sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-KEYFLAG sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-SCRBLOCK sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-BLOCK_DESC sy-vline 
WA_/IXOS/DC_SA_WD_SELECTION_STR-SELLINKTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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