Amazon SimpleDB
SimpleDB is an old service (late 2007), and it is the only one offered by AWS that can really be called a serverless database. AWS offers many other managed databases, such as DynamoDB or RDS, but all of them require that you set provisions and pay for 24 hours a day, even when no one is using your system. You do need to worry about the servers when you need to constantly check whether the capacity is well designed for your traffic.
SimpleDB is serverless for the following reasons:
- Totally managed by AWS: You don't need to spin-up a machine and install/configure a DBMS.
- Highly available: AWS manages multiple geographically distributed replicas of your database to enable high availability and data durability.
- Scalable: You can grow in size very fast without worrying about provisioning.
- Cost-efficient: You pay for the amount of data stored, data transferred, and the CPU time used to run queries. If no one is using the database, you pay only for what is currently stored.
SimpleDB...
