Cloud Spanner
Cloud Spanner is a globally distributed, horizontally scalable, and strongly consistent relational database service offered by Google Cloud. It combines the benefits of traditional relational databases (like SQL support and ACID transactions) with the scalability and high availability of NoSQL systems, making it suitable for mission-critical applications requiring global consistency. It automatically handles sharding, replication, and failover across multiple regions.
Developers should use Cloud Spanner when building applications that demand high scalability, strong consistency, and global availability, such as financial systems, e-commerce platforms, or real-time inventory management. It is ideal for scenarios where traditional relational databases struggle with scale or where NoSQL databases lack transactional guarantees, as it eliminates the need for manual sharding and complex consistency models.