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When would I want to use one over the other?
Reading about both, they sound oddly similar, so I was wondering if someone with a bit of experience in either would have a run down of pros/cons and in which use cases each excel?
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Amazon DynamoDB is a NoSQL database service that delivers consistent, single-digit millisecond latency at any scale. DynamoDB lets you easily store and query device data so you can focus on building incredible new AWS IoT solutions.
For relatively small items, especially those with a size of less than 4 KB, DynamoDB runs individual operations faster than Amazon S3. DynamoDB can scale on-demand, but S3 offers better scalability. In case of huge volumes of traffic, DynamoDB can be overwhelmed for a while.
The most notable feature of CouchDB not supported by DynamoDB is the views (see here for a high-level description).
DynamoDB supports high-traffic, extreme-scaled events and can handle millions of queries per second.
I think the top pros of DynamoDB are explained well in the top answer of What are the pros and cons of DynamoDB with respect to other NoSQL databases?:
The most notable feature of CouchDB not supported by DynamoDB is the views (see here for a high-level description).
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