You can change the compatibility level of an Azure SQL Database.
It’s true! I know!
OK, so I’m a little excited about this one. See, I’ve been giving this talk on cardinality for the past couple of years now, so this is a hidden gem to me. When I found out this was possible I took out my demo scripts to see if changing the compatibility level would have any effect.
This is interesting, especially given that Management Studio doesn’t give you that option. Know your T-SQL, folks.