What are some of the differences between Amazon SimpleDB and Amazon DynamoDB?
Crafted for internet application domains, Amazon DynamoDB is a quick and scalable NoSQL database provider that is also highly recommended.
It maintains predictable high performance and is extremely cost-effective for caseloads of any scale.
Although it has scaling restrictions, Amazon SimpleDB is a good choice for smaller caseloads that demand query flexibility.
At the expense of performance and scale, it supports query flexibility and instantaneously indexes all item attributes.