DynamoDB is a fully managed, Internet scalable, easily administered, and cost effective NoSQL database. It is a part of database as a service-offering pane of Amazon Web Services.

The next diagram shows how Amazon offers its various cloud services and where DynamoDB is exactly placed. AWS RDS is a relational database as a service over the Internet from Amazon, while Simple DB and DynamoDB are NoSQL databases as services. Both SimpleDB and DynamoDB are fully managed, nonrelational services. DynamoDB is build considering fast, seamless scalability, and high performance. It runs on SSDs to provide faster responses and has no limits on request capacity and storage. It automatically partitions your data throughout the cluster to meet expectations, while in SimpleDB, we have a storage limit of 10 GB and can only take limited requests per second.

Also, in SimpleDB, we have to manage our own partitions. So, depending upon your need, you have to choose the correct solution.

To use DynamoDB, the first and foremost requirement is an AWS account. Through the easy-to-use AWS management console, you can directly create new tables, providing necessary information and can start loading data into the tables in few minutes.