DynamoDB – Integration with Amazon S3

Export to S3 (PITR must be enabled)

• Export table data from any second within the last 35 days.

• No impact on read capacity units.

• Common use cases:
• Offline data analysis with Amazon Athena or EMR.
• Auditing and compliance snapshot retention.
• ETL pipelines before re-importing into DynamoDB.

• Output formats: DynamoDB JSON or Amazon ION.

Import from S3

• Accepted formats: CSV, DynamoDB JSON, Amazon ION.

• Creates a new table — no impact on write capacity.

• Useful for migrating datasets or restoring historical exports.

• Import errors are captured in CloudWatch Logs.

Typical Workflow

• Export DynamoDB → S3 → Query with Athena → (Optional) Re-import to DynamoDB.