Oracle Active Standby Database tutorial

A physical standby database could always be opened in “read only” mode. The problem was that it didn’t apply any archived logs at that time. It could only apply logs when mounted.

Then came Oracle 11g…

Creating an Oracle Standby Database – Data Guard tutorial

Physical standby database is a common solution for DR. We can maintain it automatically using Data Guard, or manually by copying archived redo logs to the standby server and apply them to the database.