ABAP Select data from SAP table NET_SET into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM NET_SET
*  INTO TABLE @DATA(IT_NET_SET2).
*--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_NET_SET INDEX 1 INTO DATA(WA_NET_SET2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<NET_SET>-AUTOADJUST = 1.
<NET_SET>-BUTTONPOS = 1.
<NET_SET>-DISPBG = 1.
<NET_SET>-DUPMODE = 1.
<NET_SET>-HEIGHT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_NET_SET-HOFFSET, sy-vline,
  WA_NET_SET-IGNOREUSER, sy-vline,
  WA_NET_SET-INODESIZE, sy-vline,
  WA_NET_SET-INSMODE, sy-vline,
  WA_NET_SET-LAYBG, sy-vline,
  WA_NET_SET-LAYFG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_NET_SET 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_NET_SET 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_NET_SET INTO WA_NET_SET.


*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_NET_SET_STR, 
AUTOADJUST TYPE STRING,
BUTTONPOS TYPE STRING,
DISPBG TYPE STRING,
DUPMODE TYPE STRING,
HEIGHT TYPE STRING,
HOFFSET TYPE STRING,
IGNOREUSER TYPE STRING,
INODESIZE TYPE STRING,
INSMODE TYPE STRING,
LAYBG TYPE STRING,
LAYFG TYPE STRING,
LAYORDER TYPE STRING,
LAYSTYLE TYPE STRING,
LBUTTBG TYPE STRING,
LBUTTFG TYPE STRING,
MARKNODE TYPE STRING,
MODMODE TYPE STRING,
NAVBG TYPE STRING,
NAVFRMCOL TYPE STRING,
NODEBG TYPE STRING,
NODESIZE TYPE STRING,
OBUTTBG TYPE STRING,
OBUTTFG TYPE STRING,
ORDBG TYPE STRING,
ORDFG TYPE STRING,
SELLINECOL TYPE STRING,
SELOBJMODE TYPE STRING,
SELTYPMODE TYPE STRING,
STATBG TYPE STRING,
STATFG TYPE STRING,
TRCKFRMCOL TYPE STRING,
USESAVE TYPE STRING,
VIEW1BG TYPE STRING,
VIEW2BG TYPE STRING,
VIEW3BG TYPE STRING,
VOFFSET TYPE STRING,
WIDTH TYPE STRING,
XPERCENT TYPE STRING,
XPOS TYPE STRING,
YPERCENT TYPE STRING,
YPOS TYPE STRING,
ZOOMFAC TYPE STRING,
MARKLINK TYPE STRING,
CONMODE TYPE STRING,
CUSMODE TYPE STRING,
TIMER TYPE STRING,
DBLCLICK TYPE STRING,
AUTOPORT TYPE STRING,
UDM TYPE STRING,
ROUNDED TYPE STRING,
XPOSITION TYPE STRING,
YPOSITION TYPE STRING,
XSIZE TYPE STRING,
YSIZE TYPE STRING,
TRACKOPT TYPE STRING,
CLROWS TYPE STRING,
CLCOLS TYPE STRING,
CLRASTER TYPE STRING,
CLCOLWD TYPE STRING,
MASTERVIEW TYPE STRING,
LEGEND TYPE STRING,
SUBCHART TYPE STRING,
SUBINDEX TYPE STRING,
INFOTEXTS TYPE STRING,
CONFIRM TYPE STRING,
TITLEBOX TYPE STRING,
PORTSIZE TYPE STRING,
AUTO_CLUST TYPE STRING,
RANG TYPE STRING,
LAYOUT TYPE STRING,
CLDELS TYPE STRING,
TBXZOOM TYPE STRING,
BREAKCON TYPE STRING,
ALIVE TYPE STRING,
NODELMSG TYPE STRING,
INFOTXTNUM TYPE STRING,
AMODAL TYPE STRING,
STGAUGE TYPE STRING,
SHORTLINK TYPE STRING,
USRPOPS TYPE STRING,
LINKINCLUS TYPE STRING,
NOWARN TYPE STRING,
NODELPOP TYPE STRING,
NODUPMOVE TYPE STRING,
INNERPICKM TYPE STRING,
NOBOXMOVE TYPE STRING,
COMPACTNOD TYPE STRING,
COMPCTINOD TYPE STRING,
OWNLEGEND TYPE STRING,
PILEMODE TYPE STRING,
LINKOPTIM TYPE STRING,
CUSTOMIZE TYPE STRING,
TOOLTIP TYPE STRING,
ROWPOSONLY TYPE STRING,
INSNODEPOS TYPE STRING,
BMPDISPAR TYPE STRING,
BMPNODEAR TYPE STRING,
BMPNAVAR TYPE STRING,
UNQLNKSYMS TYPE STRING,
MOVEBTMPS TYPE STRING,
BREAKLGND TYPE STRING,
DIAGLINES TYPE STRING,
INSATLINK TYPE STRING,
NOADJCONF TYPE STRING,
MENUMARK TYPE STRING,
NOSELWARN TYPE STRING,
PHANTBAND TYPE STRING,
ENJOYLEVEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_NET_SET_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_NET_SET_STR-AUTOADJUST sy-vline 
WA_NET_SET_STR-BUTTONPOS sy-vline 
WA_NET_SET_STR-DISPBG sy-vline 
WA_NET_SET_STR-DUPMODE sy-vline 
WA_NET_SET_STR-HEIGHT sy-vline 
WA_NET_SET_STR-HOFFSET sy-vline 
WA_NET_SET_STR-IGNOREUSER sy-vline 
WA_NET_SET_STR-INODESIZE sy-vline 
WA_NET_SET_STR-INSMODE sy-vline 
WA_NET_SET_STR-LAYBG sy-vline 
WA_NET_SET_STR-LAYFG sy-vline 
WA_NET_SET_STR-LAYORDER sy-vline 
WA_NET_SET_STR-LAYSTYLE sy-vline 
WA_NET_SET_STR-LBUTTBG sy-vline 
WA_NET_SET_STR-LBUTTFG sy-vline 
WA_NET_SET_STR-MARKNODE sy-vline 
WA_NET_SET_STR-MODMODE sy-vline 
WA_NET_SET_STR-NAVBG sy-vline 
WA_NET_SET_STR-NAVFRMCOL sy-vline 
WA_NET_SET_STR-NODEBG sy-vline 
WA_NET_SET_STR-NODESIZE sy-vline 
WA_NET_SET_STR-OBUTTBG sy-vline 
WA_NET_SET_STR-OBUTTFG sy-vline 
WA_NET_SET_STR-ORDBG sy-vline 
WA_NET_SET_STR-ORDFG sy-vline 
WA_NET_SET_STR-SELLINECOL sy-vline 
WA_NET_SET_STR-SELOBJMODE sy-vline 
WA_NET_SET_STR-SELTYPMODE sy-vline 
WA_NET_SET_STR-STATBG sy-vline 
WA_NET_SET_STR-STATFG sy-vline 
WA_NET_SET_STR-TRCKFRMCOL sy-vline 
WA_NET_SET_STR-USESAVE sy-vline 
WA_NET_SET_STR-VIEW1BG sy-vline 
WA_NET_SET_STR-VIEW2BG sy-vline 
WA_NET_SET_STR-VIEW3BG sy-vline 
WA_NET_SET_STR-VOFFSET sy-vline 
WA_NET_SET_STR-WIDTH sy-vline 
WA_NET_SET_STR-XPERCENT sy-vline 
WA_NET_SET_STR-XPOS sy-vline 
WA_NET_SET_STR-YPERCENT sy-vline 
WA_NET_SET_STR-YPOS sy-vline 
WA_NET_SET_STR-ZOOMFAC sy-vline 
WA_NET_SET_STR-MARKLINK sy-vline 
WA_NET_SET_STR-CONMODE sy-vline 
WA_NET_SET_STR-CUSMODE sy-vline 
WA_NET_SET_STR-TIMER sy-vline 
WA_NET_SET_STR-DBLCLICK sy-vline 
WA_NET_SET_STR-AUTOPORT sy-vline 
WA_NET_SET_STR-UDM sy-vline 
WA_NET_SET_STR-ROUNDED sy-vline 
WA_NET_SET_STR-XPOSITION sy-vline 
WA_NET_SET_STR-YPOSITION sy-vline 
WA_NET_SET_STR-XSIZE sy-vline 
WA_NET_SET_STR-YSIZE sy-vline 
WA_NET_SET_STR-TRACKOPT sy-vline 
WA_NET_SET_STR-CLROWS sy-vline 
WA_NET_SET_STR-CLCOLS sy-vline 
WA_NET_SET_STR-CLRASTER sy-vline 
WA_NET_SET_STR-CLCOLWD sy-vline 
WA_NET_SET_STR-MASTERVIEW sy-vline 
WA_NET_SET_STR-LEGEND sy-vline 
WA_NET_SET_STR-SUBCHART sy-vline 
WA_NET_SET_STR-SUBINDEX sy-vline 
WA_NET_SET_STR-INFOTEXTS sy-vline 
WA_NET_SET_STR-CONFIRM sy-vline 
WA_NET_SET_STR-TITLEBOX sy-vline 
WA_NET_SET_STR-PORTSIZE sy-vline 
WA_NET_SET_STR-AUTO_CLUST sy-vline 
WA_NET_SET_STR-RANG sy-vline 
WA_NET_SET_STR-LAYOUT sy-vline 
WA_NET_SET_STR-CLDELS sy-vline 
WA_NET_SET_STR-TBXZOOM sy-vline 
WA_NET_SET_STR-BREAKCON sy-vline 
WA_NET_SET_STR-ALIVE sy-vline 
WA_NET_SET_STR-NODELMSG sy-vline 
WA_NET_SET_STR-INFOTXTNUM sy-vline 
WA_NET_SET_STR-AMODAL sy-vline 
WA_NET_SET_STR-STGAUGE sy-vline 
WA_NET_SET_STR-SHORTLINK sy-vline 
WA_NET_SET_STR-USRPOPS sy-vline 
WA_NET_SET_STR-LINKINCLUS sy-vline 
WA_NET_SET_STR-NOWARN sy-vline 
WA_NET_SET_STR-NODELPOP sy-vline 
WA_NET_SET_STR-NODUPMOVE sy-vline 
WA_NET_SET_STR-INNERPICKM sy-vline 
WA_NET_SET_STR-NOBOXMOVE sy-vline 
WA_NET_SET_STR-COMPACTNOD sy-vline 
WA_NET_SET_STR-COMPCTINOD sy-vline 
WA_NET_SET_STR-OWNLEGEND sy-vline 
WA_NET_SET_STR-PILEMODE sy-vline 
WA_NET_SET_STR-LINKOPTIM sy-vline 
WA_NET_SET_STR-CUSTOMIZE sy-vline 
WA_NET_SET_STR-TOOLTIP sy-vline 
WA_NET_SET_STR-ROWPOSONLY sy-vline 
WA_NET_SET_STR-INSNODEPOS sy-vline 
WA_NET_SET_STR-BMPDISPAR sy-vline 
WA_NET_SET_STR-BMPNODEAR sy-vline 
WA_NET_SET_STR-BMPNAVAR sy-vline 
WA_NET_SET_STR-UNQLNKSYMS sy-vline 
WA_NET_SET_STR-MOVEBTMPS sy-vline 
WA_NET_SET_STR-BREAKLGND sy-vline 
WA_NET_SET_STR-DIAGLINES sy-vline 
WA_NET_SET_STR-INSATLINK sy-vline 
WA_NET_SET_STR-NOADJCONF sy-vline 
WA_NET_SET_STR-MENUMARK sy-vline 
WA_NET_SET_STR-NOSELWARN sy-vline 
WA_NET_SET_STR-PHANTBAND sy-vline 
WA_NET_SET_STR-ENJOYLEVEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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