Database Rolling Upgrade Using Transient Logical Standby: Oracle Data Guard 11g
Oracle Maximum Availability Architecture (MAA) is Oracle's best practices blueprint for implementing Oracle high-availability technologies. This MAA white paper provides best practices for utilizing a physical standby database to perform a rolling upgrade with minimal downtime using the new Data Guard 11g feature, Transient Logical Standby. Rolling upgrades eliminates downtime associated with the conventional database upgrade, including PL/SQL recompilation. Additionally, once the standby database has been upgraded, it can be used to evaluate performance and stability of the new release before there is any impact to production.