Database
Amazon RDS
Amazon RDS manages relational database engines including PostgreSQL, MySQL, MariaDB, Oracle, and SQL Server. It supports structured GenAI application records and, with an appropriate engine, vector-aware relational designs.
Key points
- Multi-AZ deployments improve availability while read replicas address read scaling
- Automated backups support point-in-time recovery within retention settings
- Engine choice controls extension, licensing, and compatibility options
When to use it
- Store auditable prompt-run and approval records
- Back a tool that performs transactional customer updates
Exam tips
- Use RDS when a supported traditional engine meets the need; Aurora adds AWS-designed distributed storage options
- Keep model calls outside database transactions to avoid long locks and ambiguous retries