Oracle Basic Concepts
This is a collection of FAQ for Oracle DBA on fundamental concepts. The clear answers and sample scripts provided can be used as learning tutorials or interview preparation guides.

N-Way Replication with New Oracle Streams book from Packt
N-Way replication takes the concepts for setting upa single-source configuration and applies it to a multi-master, or N-Way Replication environment configuration. Planning for N-Way replication starts with conflict resolution. Working with your business units is a must and setting and managing expectations needs to be done before any discussion of implementation. The use of Use Case scenarios driven down to transactions then to tables involved in those tansactions is one method to promote discussions with business units.