If you’re new to DynamoDB, chances are that all you’ve heard so far would be “Query is the way to go, do NOT use Scan Operations”. Which is true in most cases, but in what cases are they discouraged and “Scan” is encouraged ?

Let’s say you have a DB for Payment Transactions at a product selling website. You would most likely have the unique ‘Primary partition key’ as the Transaction ID. And a couple of Global Secondary Indices (GSI) for SellerID/ProductID and BuyerID. …


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