A method and apparatus for replicating data among sites is provided. The method allows changes to the same body of data to be replicated synchronously to some destination sites and asynchronously to other destination sites. Such mixed propagation configurations allow synchronous updating to selected...http://www.google.com.au/patents/US5937414?utm_source=gb-gplus-sharePatent US5937414 - Method and apparatus for providing database system replication in a mixed propagation environment
