High Availability in Oracle

 High Availability in Oracle

Oracle Database includes features to ensure high availability, which is the ability of a system to remain operational even in the face of hardware or software failures. These features include automatic failover, backup and recovery, and database replication. Here is an example:

CREATE STANDBY DATABASE my_standby

AS PRIMARY DATABASE my_primary

CONNECT IDENTIFIER my_connect

KEEP ALIVE;

This creates a standby database named "my_standby" that replicates the primary database named "my_primary". The "KEEP ALIVE" option ensures that the standby database remains connected to the primary database and can automatically take over if the primary database fails.