Amazon RDS vs Couchbase

Amazon Relational Database Service (RDS) is a managed database service from AWS that supports MySQL, PostgreSQL, MariaDB, Oracle, SQL Server, and Db2 engines. It automates hardware provisioning, database setup, patching, and backups with options for Multi-AZ deployments and read replicas.

Couchbase is a distributed NoSQL database providing high performance, high availability, and flexible data models for modern applications. It combines document-oriented flexibility with traditional database reliability.