Standby database

Flashback Database removes the need to re-create the primary database after a failover. After a failover, the original primary database can now be flashed back to a point in time before the failover and converted into a standby database. Once all of the logs have been applied, the original primary database can be switched back to the primary role.

474p thuxuan 03-08-2009 73 6   Download

After completing this lesson, you should be able to do the following: Explain the advantages of SQL Apply Explain when to use a logical standby database Create a logical standby database by using Enterprise Manager

30p nghianguyenluong 30-06-2009 237 53   Download

After completing this lesson, you should be able to do the following: Describe the factors that affect planned and unplanned downtime Describe the basic components of Oracle Data Guard Explain the differences between physical and logical standby databases Explain the benefits of creating a Data Guard environment Explain the use of Data Guard in high-availability architectures

20p nghianguyenluong 30-06-2009 317 93   Download