DynamoDB's NoSQL model requires understanding access patterns upfront. Single table design combines entities efficiently. Key design determines query capabilities. GSIs enable additional access patterns.
Data Modeling
Design for access patterns, not entities. Partition keys distribute data and enable direct lookups. Sort keys enable range queries within partitions. Composite keys combine multiple attributes.
- Identify access patterns before designing schema
- Use composite keys for flexible querying
- Design partition keys for even distribution
- Implement GSIs for alternative access patterns
- Consider single table design for related entities
Performance Optimization
Avoid hot partitions through good key design. Use sparse indexes for filtered queries. Implement pagination for large result sets. Configure capacity modes for your traffic pattern.