Oracle has peculiarities that you won't see in most other databases, which may make this a bit harder -- including such things as an oddball set of date/time types ("date" includes time to seconds), and treating zero length strings as SQL nulls --

  '' is null

evaluates to true in Oracle. It also has features like "fast refresh" on materialized views which might be tricky to emulate on other db engines. Nothing's impossible, but it's certainly more of a challenge.