A serverless database is a type of database that operates on an automated level, freeing developers from the time and effort of managing it. This allows for more automated scaling, stronger resilience, and reduced time to market. Serverless databases work by automatically adjusting capacity based on workload demand, eliminating the need for manual management of servers or infrastructure. They offer benefits such as cost-effectiveness, high scalability, better resilience and availability, increased productivity, and a better developer experience. Some popular serverless databases include Fauna, Amazon Aurora Serverless, Google Firestore, Amazon DynamoDB, and CockroachDB. These databases provide features such as on-demand autoscaling, multi-tenancy, data protection, security safeguards, cost-effectiveness, high scalability, better resilience and availability, increased productivity, and a better developer experience. By using a serverless database, developers can focus on creating applications without worrying about provisioning, configuring, or managing database infrastructure, increasing productivity and providing a better developer experience.