In this multipart series, learn how important new features such as Database Replay, Flashback Data Archive, Edition-based Redefinition, and SecureFiles work via simple, actionable how-to's and sample code. (Updated for Release In this multipart series, learn how important new features such as Database Replay, Flashback Data Archive, Edition-based Redefinition, and SecureFiles work via simple, actionable how-to's and sample code. (Updated for Release 2!)