As of Oracle Database 11g release 1 (11.1), a physical standby database can receive and apply redo while it is open for read-only access. A physical standby database can therefore be used concurrently for data protection and reporting.
那岂不是11g
physical standby DB 也可以用来做report DB了, 下周做个测试, 好好研究研究11g DG。
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