Describing methods of replication, including details of implementations in popular databases and middleware solutions.

A middleware that works between PostgreSQL servers and a PostgreSQL database client and provides connection pooling, replication, load balancing and parallel queries. Online installation instructions and documentation.

DataXtend RE, a data replication tool for online and offline use. Support and ordering information as well as whitepapers and other documentation.

Replication tool designed for a high volume of data. Whitepapers, partner pages, customer listing, news and free trial download.

Provides a full range of database replication options across a multiple database management systems. Downloads, documentation and support.

Provides real-time data replication and data integration using snapshot, incremental and synchronization replication. Datasheets, knowledge base, frequently asked questions and customer portal.

Postgres-R is an extension to the relational database system PostgreSQL providing efficient, fast and consistent database replication.

Software for uni-directional and bi-directional database replication between homogeneous or heterogeneous databases. Supports data transformation and flexible mapping. Sales literature, contact and evaluation information.

Web-enabled, database independent, data synchronization/replication software. Overview, documentation and downloads.

Lengthy article on database replication technology covering different vendor approaches and difficulties involved.