Can you provide an example of what you're referring to?

The overall topic in this subthread was whether or not declarative schema management is appropriate and safe for "real" applications, as compared to traditional migration (imperative) schema management, for popular relational database systems.

If you're referring to exclusively using stored procs to generate dynamic tables or something goofy like that, then sure -- in that case you can't use any external schema management at all, whether declarative or imperative. But that doesn't mean that declarative schema management isn't a safe or possible approach for everyone else.