Q&A for scientific skepticism
create table #test ( id int ) create table #test2 ( id int ) insert into #test values(1) insert into #test values(2) insert into #test values(3) insert into #test values(null) insert into #test2 values(-1) insert into #test2 values(1) insert into #test2 values(3) insert into #test2 values(4) insert into #test2 values(null) select * from #test cross join #test2 --on #test.id=#test2.id