The Oracle 11g feature SIMPLE_INTEGER parameter datatype is supported as of Replication Agent 15.1 ESD #3. However, the following features are not supported:
SecureFiles – a redesign of the implementation of large object (LOB) storage in Oracle 11g.
Virtual Columns – columns that appear to be normal table columns, but their values are derived rather than stored on disk.
Tables containing these types of columns can be marked. However, these columns will not be replicated.