Question: Can DynamoDB have duplicates?
Answered by Rafal Wilinski
Answer
DynamoDB is a NoSQL database provided by Amazon Web Services (AWS) that uses a unique primary key to identify each item in a table. By default, it does not allow duplicates. However, if you are using a secondary index, there is a possibility of duplicates if the indexed attributes are not unique.
Other Common DynamoDB FAQ (with Answers)
- Is DynamoDB ACID compliant?
- How is data stored in DynamoDB?
- Is connection pooling needed for DynamoDB?
- How to import data from S3 to DynamoDB?
- What are the best alternatives to DynamoDB?
- Does DynamoDB charge for storage?
- Does DynamoDB support Multi-AZ?
- Is DynamoDB open source?
- What are the key differences between DynamoDB and Neo4j?
- Is DynamoDB a wide-column store?
- How to access DynamoDB from EC2?
- Will I be charged for DynamoDB is it is inactive?
- Can we pass objects as an item in DynamoDB?
- Can DynamoDB have null values?
- Is DynamoDB PaaS or SaaS?
Spend less time in the AWS console, use Dynobase.
Start your 7-day free trial today
Product Features
DynamoDB Tools
DynamoDB Info
© 2026 Dynobase