A method is provided for replicating transaction data from a source database to a target database wherein the transaction data is communicated from a change queue associated with the source database to the target database. An initial path is provided between the change queue and the target database for...http://www.google.com.tw/patents/US8117154?utm_source=gb-gplus-share專利 US8117154 - Method for ensuring replication when system resources are limited