adding dummy column in Sql Query

Hi for all

How to Add a Dummy column in my Sqlquery like Serial Numbers
for example my query is
Select OrderNo,OrderDate,OrderValue,DummyColumn as Slno from OrderTable Where OrderValue>4000

( DummyColumn this column was not in Table )

so i want the result like

OrderNo OrderDate OrderValue Slno
---------------
Rd001 10/25/2001 $5000 1
Rd105 12/15/2002 $5657 2
Rd441 10/15/2001 $8000 3
Rd543 05/22/2002 $9040 4
Rd333 09/05/2002 $5170 5
Rd662 11/25/2002 $9556 6

How to Get this result. Is it possible with out using StoredProcedures and Temp Tables.

Please Give some sugessions.hii
please try this code in the northwind database, to get an idea

declare @.cmp varchar(100)
declare @.dc int
set @.dc = 0
declare cur_sor cursor for select companyname from customers
set @.dc = @.dc + 1
open cur_sor
fetch next from cur_sor into @.cmp
while @.@.fetch_status = 0
begin
select @.dc as dummycolmn,@.cmp as company
fetch next from cur_sor into @.cmp
set @.dc = @.dc + 1
end

close cur_sor
deallocate cur_sor

regards
ramki