declare @string nvarchar(max)=''
declare @UserName nvarchar(50)
--------------------------------------
declare cursor1 cursor for 
--your select HERE
select UserName from Users
--
open cursor1
fetch next from cursor1 into @UserName
while @@FETCH_STATUS=0
begin
	--your codes HERE
	set @string+=ISNULL(@UserName+'/','')
	--
fetch next from cursor1 into @UserName
end
close cursor1
deallocate cursor1
-------------------------------
select @string