Issue link: https://resources.awscloud.com/i/1496544
(AWS, Azure, and Google) offer several proprietary and open- source databases as well as their own cloud native databases. • Self-managed and managed databases offer different parameters for configuration. • With managed databases, much of the security is handled by the vendor. But even a managed database leaves important security decisions up to you, such as to whom to give accounts and what limitations to place on tables or columns. Monitoring and auditing access attempts is usually still your job. You can also control security settings such as which IP addresses have access. Managed databases therefore offer many advantages over on- premises deployments and self-managed databases, but you might have unique reasons to run your own database. The rest of this report covers managed databases because they offer a unique oppor‐ tunity for a DBA to focus on activities that have more long-term impact on the business. Cloud Native Databases Managed databases can also be divided into two categories: tradi‐ tional and cloud native. Traditional databases such as Oracle, SQL Server, MySQL, and PostgreSQL are frequently offered as managed databases by cloud providers. If you have built your organization around one of these databases on-premises, moving to the same database in the cloud simplifies migration. You are less likely to need to alter your applications and can use familiar tools to manage the databases. You can also mix offerings from different vendors or maintain your on-premises version of the database. But the vendors have invested great effort into new offerings of their own, sometimes called cloud native databases. Vendors provide evi‐ dence that the cloud native databases perform better, scale more easily, and are cheaper in the long run. Thus, testimonials from Autodesk and InfoScout suggest that AWS engineers have solved many of the scaling and efficiency problems of managing relational databases in the cloud with their own database, Amazon Aurora. Cloud native databases are also designed to scale enormously, a task that has historically been difficult for relational databases. 6 | Chapter 1: Database Options in the Cloud