AWS Cloud TutorialLesson 48Free preview

AWS DynamoDB vs RDS

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Summary

This lesson compares two popular AWS database services: RDS, which uses a relational model with a fixed schema, and DynamoDB, a NoSQL database with a flexible schema. RDS is better suited to complex SQL queries and relational reports, while DynamoDB is better suited to automatic scalability and consistent low latency. The right choice depends on the data model, the query pattern, and the need for scalability.

Key points

RDS: relational, fixed schema, suitable for complex SQL queries
DynamoDB: NoSQL key-value/document, flexible scheme
DynamoDB scaling automatically with low latency
Selection based on data models and access patterns

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