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Azure Database for PostgreSQL: Logical Replication for Business Continuity
Introduction
Azure Database for PostgreSQL provides a reliable and secure database service for your business-critical applications. With the addition of Logical Replication, Azure Database for PostgreSQL offers an additional level of business continuity and high availability for your mission-critical databases.

What Is Logical Replication?
Logical Replication is a replication technology that allows for the replication of data between two databases. It is different from physical replication, which is used to replicate data between physical servers or clusters. Logical Replication allows for the replication of data between two databases regardless of the underlying hardware, providing a more flexible and cost-effective replication solution.

Benefits of Logical Replication
Logical Replication provides several benefits for businesses that rely on their database for mission-critical applications. The main benefits include:

* Increased availability by replicating data between multiple databases.
* Increased security by replicating data between multiple databases.
* Flexibility to replicate data between different types of databases.
* Reduced costs by replicating data between different types of databases.
* Improved performance by replicating data between multiple databases.

Implementing Logical Replication with Azure Database for PostgreSQL
Azure Database for PostgreSQL supports Logical Replication for both single-server and Hyperscale deployments. To configure Logical Replication, you must first create a database user with the required permissions. You then configure the source and target databases, create a replication slot, and create a replication set. Once the replication set is configured, the data will be replicated between the source and target databases.

Conclusion
Logical Replication is an important feature of Azure Database for PostgreSQL that provides increased availability, security, flexibility, and cost savings. With Logical Replication, businesses can rely on their databases for mission-critical applications with the assurance that their data is replicated between multiple databases.
References:
Azure Database for PostgreSQL : Logical Replication
1. Azure PostgreSQL Logical Replication
2. Logical PostgreSQL Replication