Amazon RDS vs Neo4j

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.

Neo4j is Graph database that stores and queries data as nodes and relationships using the Cypher query language.. It is available under a freemium model. This tool falls under the databases category.