opposite of “top” in sql server, without using order by, there are no keys/indices

Question

I want to retrieve the bottom 10 results from a sql server table. I want them to be the last 10 records that were inserted, how can I do this ?

I want to write

Answer 1

You can't.

There is no guarantee at all that the last 10 records returned by select * from mytable will be the last 10 inserted. There is no default ordering that is used.

You need an ORDER BY on an appropriate column reflecting insert order.