NewSQL
NewSQL is a class of relational database management systems that aim to provide the scalability of NoSQL databases while maintaining the ACID (Atomicity, Consistency, Isolation, Durability) guarantees and SQL query capabilities of traditional SQL databases. These systems are designed to handle high-volume, distributed workloads, often using innovative architectures like in-memory processing or distributed consensus protocols. They bridge the gap between traditional SQL databases and NoSQL solutions, offering strong consistency and horizontal scalability.
Developers should learn and use NewSQL databases when building applications that require both high scalability and strict transactional integrity, such as financial systems, e-commerce platforms, or real-time analytics. It is particularly useful in cloud-native or microservices architectures where data consistency across distributed nodes is critical, and traditional SQL databases become bottlenecks. NewSQL helps avoid the complexity of eventual consistency models in NoSQL while supporting modern, high-throughput workloads.