Technical Note: Enabling Continuous Availability in DR Environments

The goal of continuous availability, as stated by Oracle, is to “hide planned maintenance, unplanned outages, and load imbalances of the database.” Oracle has been enhancing its continuous availability capabilities from release to release with technologies like Fast Application Notification (FAN), Transparent Application Failover (TAF), and (as of Oracle Database 18c) Transparent Application Continuity to enable organizations to develop applications without having to deal with failure handling.

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