Question: When to use DynamoDB?
Answer
DynamoDB is a perfect choice for all sizes of applications, especially if your application needs predictable read and write performance. DynamoDB thanks to automatic scaling is able to survive the biggest traffic spikes. Moreover, the costs of DynamoDB are very predictable.
DynamoDB can be used for almost anything, including:
- Simple key-value store like metadata store
- Relational data store (Using Adjacency List Pattern \ Single Table Design)
- Geographical data, using Geohashing
- Timeseries, using multiple tables per period
- Caching (even more efficient with DAX)
- Event-driven transaction processing (thanks to DynamoDB Streams)
- Session store/history with TTL (time-to-live)
- Leaderboards
- Shopping carts using Transactions
- Workflow engines
- Relationship graph data stores (Using Adjacency List Pattern)
Moreover, when choosing the database for your next project, you should award a few extra points to DynamoDB if:
- You want to go Serverless. DynamoDB integrates with AWS Lambda and other AWS Serverless offerings really well
- You are going to deal with massive traffic with erratic spikes
- You want to be asynchronous and event-driven
- You want to minimize your costs and scale them ideally with your application usage
Other Common DynamoDB FAQ (with Answers)
- How to divert the traffic from S3 to DynamoDB?
- Why must table be empty to enable DynamoDB global tables?
- How to store Japanese characters in DynamoDB?
- Does DynamoDB support load balancing?
- How to access DynamoDB from Android Studio?
- What kind of database is DynamoDB?
- How to store graphs in DynamoDB?
- What does the DynamoDB query return?
- How do parallelize requests in DynamoDB?
- How to track changes to items in DynamoDB?
- Are DynamoDB table names globally unique?
- How many secondary indexes are allowed per table DynamoDB?
- Can DynamoDB have duplicates?
- How do I create an id in DynamoDB?
- How to count rows in DynamoDB?
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