Databases¶

RDS¶

• Relational databases, that are good for online transaction processing (OLTP).
• Provisioned database that scales vertically, not horizontally.
• PostgreSQL, MySQL, Oracle, Aurora and Aurora Serverless.

DynamoDB¶

• NoSQL managed database.
• Key/value store to keep documents upto 400KB.
• Serverless.
• Can be provisioned with RCU/WCU and auto-scaling, or use On-Demand.

ElastiCache¶

• In memory database.
• Redis or Memcached.
• Caches data coming from other databases, session data or caching queries.
• Provisioned the same as RDS databases.

Redshift (OLAP)¶

• Online analytical processing.
• Data warehousing/data lakes.
• Analytics queries.
• Provisioned in advance.

Neptune¶

• Graph database.

DMS¶

• Database migration service to move data from one database to another.

DocumentDB¶

• Managed MongoDB.