Be careful to not drop that table  on your foot!
Back up! ;-) We are talking development, now.
This is not the production system. We are testing the
table create. Therefore, there should not be any
useable data and no need to do a backup. If we are
working on production data or even shared test databases,
then make the effort to backup the data. But
when you are the one creating the table, feel free to
blast it and start over