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Advance data replication Advanced, symmetric data replication is useful for many types of application systems with special requirements. Disconnected Environments : Advanced replication is useful for the deployment of transaction processing applications that operate using disconnected components. For example, consider the typical sales force automation system for a life insurance company. Each salesperson must visit customers regularly with a laptop computer and record orders in a personal database while disconnected from the corporate computer network and centralized database system. Upon returning to the office, each salesperson must forward all orders to a centralized, corporate database. Failover Site : Advanced replication can be useful to protect the availability of a mission critical database. For example, a symmetric replication system can replicate an entire database to establish a failover site should the primary site become unavailable due to a system or network outage. In contrast with Oracle's standby database feature, such a failover site can also serve as a fully functional database to support application access when the primary site is concurrently operational. Distributing Application Loads : Advanced replication is useful for transaction processing applications that require multiple points of access to database information for the purposes of distributing a heavy application load, ensuring continuous availability, or providing more localized data access. Information Transport : Advanced replication can be useful as an information transport mechanism. For example, an advanced replication system can periodically off-load data from an update-intensive operational database to a data warehouse or data mart. Prajakta Pandit 02-16-2017 02:07 AM

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