Emulating Oracle flashback functionality I'm considering going from Oracle Enterprise Edition (EE) to SE/SE1 but want to retain the flashback database and flashback table features from EE. 

Does anyone know how to emulate these features in SE/SE1?

Thanks in advance
You could try with replicating you changes to change tables. Dbvisit replicate could be of good value here. See Real-time Oracle data and database replication It is not a free tool but it saves a lot compared to running EE.