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AWS DynamoDB stream is an event-driven mechanism to process database change events. It enables storing data for multiple independent consumers, sharing information between microservices, and sending data to an external analytic system.
In comparison to Amazon Kinesis stream, DynamoDB stream guarantees no duplicates, requires no shard maintenance, and does not have an added cost.
However, Kinesis stream provides enhanced fanout and direct connection to Kinesis Firehose.
The DynamoDB stream shape includes a batch of records in an array and record types indicating item creation, alteration or deletion.
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