Following are the different database types in RDS :
Amazon Aurora
It is a database engine developed in RDS. Aurora database can run only on AWS infrastructure not like MySQL database which can be installed on any local device. It is a MySQL compatible relational database engine that combines the speed and availability of traditional databases with the open source databases.
Postgre SQL
* PostgreSQL is an open source relational database for many developers and startups.
* It is easy to set up, operate, and can also scale PostgreSQL deployments in the cloud.
* You can also scale PostgreSQL deployments in minutes with cost-efficient.
* PostgreSQL database manages time-consuming administrative tasks such as PostgreSQL software installation, storage management, and backups for disaster recovery.
MySQL
* It is an open source relational database.
* It is easy to set up, operate, and can also scale MySQL deployments in the cloud.
* By using Amazon RDS, you can deploy scalable MySQL servers in minutes with cost-efficient.
MariaDB
* It is an open source relational database created by the developers of MySQL.
* It is easy to set up, operate, and can also scale MariaDB server deployments in the cloud.
* By using Amazon RDS, you can deploy scalable MariaDB servers in minutes with cost-efficient.
* It frees you from managing administrative tasks such as backups, software patching, monitoring, scaling and replication.
Oracle
* It is a relational database developed by Oracle.
* It is easy to set up, operate, and can also scale Oracle database deployments in the cloud.
* You can deploy multiple editions of Oracle in minutes with cost-efficient.
* It frees you from managing administrative tasks such as backups, software patching, monitoring, scaling and replication.
* You can run Oracle under two different licensing models: "License Included" and "Bring Your Own License (BYOL)". In License Included service model, you do need have to purchase the Oracle license separately as it is already licensed by AWS. In this model, pricing starts at $0.04 per hour. If you already have purchased the Oracle license, then you can use the BYOL model to run Oracle databases in Amazon RDS with pricing starts at $0.025 per hour.
SQL Server
* SQL Server is a relational database developed by Microsoft.
* It is easy to set up, operate, and can also scale SQL Server deployments in the cloud.
* You can deploy multiple editions of SQL Server in minutes with cost-efficient.
* It frees you from managing administrative tasks such as backups, software patching, monitoring, scaling and replication.
