Database replication is the process of copying database records from one physical database to another, either of the same or different vendors. It generally takes the forms Master/Slave or Master/Master, and can be either eager/synchronous or lazy/asynchronous. In master/slave replication, updates and inserts are only permitted on the master copy, which is replicated to the slave(s). This is the most common and stable form. In master/master or multi-master replication, updates are permitted on any copy of the data, and changes are synchronized.
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- DBBalance Offers a solution for comparing, synchronizing, replicating and converting data and database structure between ODBC enabled databases. Trial downloads, ordering information and online documentation.
- Pgpool-II 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.
- Postgres-R An extension to the relational database system PostgreSQL providing efficient, fast and consistent database replication.
- Escada Provides a full range of database replication options across a multiple database management systems. Downloads, documentation and support.
- FiBRE Free replication tools for the FireBird database. Online manuals and source code documentation.
- DBMoto Provides real-time data replication and data integration using snapshot, incremental and synchronization replication. Datasheets, knowledge base, frequently asked questions and customer portal.
- Multi-master Replication Overview Describing methods of replication, including details of implementations in popular databases and middleware solutions.
- HVR Software bv Realtime data integration solutions. Oracle to SQL Server replication.
- Multi-Master Replication Challenges Describes the difficulties encountered in a mult-master replication scenario from an Oracle point of view.
- Shadowbase Products 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.