DynamoDB is a NoSQL database that delivers single-digit millisecond performance at scale. "DynamoDB can manage upward of 10 trillion requests daily and can support thresholds of more than 20 million requests per second" - AWS Having been using it ...

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Roshan Khandelwal
Just Another Developer
Best Takeaway
All read operations except for Scan operates on a single partition. To query on a different attribute, you'll need a secondary index.