Active Geo-Replication
Active Geo-Replication lets you to configure up to four readable secondary databases in the same or different data center locations (regions). Secondary databases are available for querying and for failover in the case of a data center outage or the inability to connect to the primary database.
Active geo-replication must between databases within the same subscription.
Configure active geo-replication for Azure SQL Database
Failover groups and Active Geo-Replication