Which database engine is compatible with Amazon RDS?

Amazon Relational Database Service (RDS) is a managed web service designed to simplify the setup, operation, and scaling of relational databases in the AWS Cloud. It provides support for several popular relational database engines. PostgreSQL is a powerful, open-source object-relational database system that is one of the six database engines available to use with Amazon RDS. The other options—Apache Cassandra, MongoDB, and Neo4j—are types of NoSQL databases and are therefore not compatible with the Amazon RDS service. AWS offers other purpose-built database services for these engines, such as Amazon Keyspaces for Cassandra and Amazon DocumentDB for MongoDB workloads.

A. Apache Cassandra is a NoSQL wide-column database. AWS offers the Amazon Keyspaces service for Cassandra-compatible workloads, not Amazon RDS.

B. MongoDB is a NoSQL document database. The corresponding managed AWS service is Amazon DocumentDB (with MongoDB compatibility), not Amazon RDS.

C. Neo4j is a NoSQL graph database. AWS provides Amazon Neptune as its managed service for graph databases like Neo4j, not Amazon RDS.

1. AWS Documentation

Amazon RDS User Guide

"What is Amazon RDS?": This document explicitly lists the supported database engines. It states

"Amazon RDS provides you with six familiar database engines to choose from

including Amazon Aurora

PostgreSQL

MySQL

MariaDB

Oracle Database

and SQL Server." This confirms PostgreSQL is a supported engine.

Source: AWS Documentation

https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Welcome.html

Section: "DB engines".

2. AWS Documentation

Amazon RDS Features Page: The official product page for Amazon RDS lists the compatible engines under the "Choice of database engines" section

which includes PostgreSQL.

Source: AWS Official Website

https://aws.amazon.com/rds/features/

Section: "Choice of database engines".

3. AWS Documentation

Amazon Keyspaces (for Apache Cassandra): This source clarifies that Cassandra workloads are handled by a different service. It describes Amazon Keyspaces as "a scalable

highly available

and managed Apache Cassandra–compatible database service."

Source: AWS Official Website

https://aws.amazon.com/keyspaces/.

4. AWS Documentation

Amazon DocumentDB (with MongoDB compatibility): This source confirms that MongoDB workloads are supported by Amazon DocumentDB

not RDS.

Source: AWS Official Website

https://aws.amazon.com/documentdb/.