DynamoDB Data Modeling
Design efficient table schemas and access patterns for DynamoDB to optimize performance and cost for your applications.
Why Data Modeling Matters for DynamoDB
DynamoDB is a NoSQL database, meaning it doesn't use traditional tables, rows, and joins like SQL. Data modeling here is all about how you'll access your data, not just how you store it.
- Schema-less: No fixed schema, but structure is key for performance.
- Access Patterns First: Design your tables around the queries you'll make.
- Performance & Cost: Good modeling leads to fast queries and lower costs.
Primary Keys: Partition & Sort
Every item in DynamoDB needs a Primary Key. This key uniquely identifies each item and determines how data is stored and retrieved. It can be:
- A Partition Key (also called a Hash Key).
- A composite Partition Key and Sort Key (also called a Range Key).
All lessons in this course
- RDS Read Replicas and Multi-AZ
- Introduction to DynamoDB
- DynamoDB Data Modeling
- DynamoDB Streams and Global Tables