Even with a default value you can specifically insert NULL into it if the column allows NULLS.

And the problem is?

I can’t remember what database you’re using and of course I’m an amateur expert but I don’t think it adds anything to not null a column unless you’re indexing it. And the only reason to index an additional nine columns would be if they’re foreign keys I’d have thought, which is possible of course.

Ho hmmm anyway the database coped all is well!