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Oracle Active Data Guard—an option for Oracle Database 11g Enterprise Edition—enhances
Quality of Service by offloading resource-intensive activities from a production database to one or more synchronized
standby databases. Oracle Active Data Guard enables read-only access to a physical standby database for queries, sorting,
reporting, web-based access, etc., while continuously applying changes received from the production database.
Oracle Active Data Guard also enables the use of fast incremental backups when offloading backups to a standby database,
and can provide additional benefits of high availability and disaster protection against planned or unplanned outages at
the production site.
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