[20 Days of DynamoDB] Day 3 - UpdateItem add-on benefits

Posted: 10/Jan/2024

The DynamoDB UpdateItem operation is quite flexible. In addition to using many types of operations, you can:

• Use multiple update expressions in a single statement


• Get the item attributes as they appear before or after they are successfully updated


• Understand which item attributes failed the condition check (no additional cost)


• Retrieve the consumed Write Capacity Units (WCU)

Here is an example (using AWS Go SDK v2):

    resp, err = client.UpdateItem(context.Background(), …

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