In January 2012, Amazon announced their NoSQL service, DynamoDB. While not the first in the league, it is definitely a game changer. Most people think of MongoDB as the epitome of NoSQL because of its ease of use compared to other databases. But it has major drawbacks in terms of data management.
5 features of Amazon DynamoDB that are very compelling as compared to its competitors:
Extending the application of analytics to a database has not been as easy. Ideally, we would just want to send a request to the database and have it send back the result when ready. But every NoSQL database has failed in this aspect. MongoDB has major limitations when running map-reduce jobs.
On the other hand, DynamoDB integrates with Elastic Map Reduce and reduces the complexity of analyzing unstructured data. This is a BIG plus
2. Relaxed vs Strong consistency
3. Ease of getting started
5. Pay for use
With all its advantages, even if we consider a few flaws DynamoDB does have, as a product it comes closest to fulfilling the promise of NoSQL compared to its competitors: Easy-to-use structured storage without the complexity of managing SQL servers and the reliability and performance benefits of scaling out.