How to Migrate Oracle EE with BYOL and Privileged Third-Party Features to AWS?

Why the Answer Is Correct

Amazon RDS Custom for Oracle is the only managed AWS database service that gives you underlying OS and database-level access for Oracle, which is exactly what third-party features requiring privileged access need. It also supports the Bring Your Own License (BYOL) model for Oracle Database Enterprise Edition, so the company keeps its existing license investment instead of buying new licensing. Because it is still a managed service with automation for backups, patching windows, and monitoring, it is far more cost-effective than re-platforming or re-architecting the application. As Scheldon put it, "BYOL + third-party features/applications = RDS Custom," and the linked AWS documentation confirms that RDS Custom supports customizing the database environment for such workloads. Option B keeps both the engine (Oracle) and the licence model (BYOL) intact while enabling the required privileged access.

Why the Other Options Are Wrong

Option A uses Amazon RDS for Oracle, which does not provide the OS-level or privileged database access third-party features require; replacing those features with AWS Lambda would force significant application rewriting and new operational complexity at extra cost. Option C moves to DynamoDB, a NoSQL service that cannot run Oracle-specific schemas or third-party Oracle features at all, so AWS DMS alone cannot make this work. Option D migrates to Amazon RDS for PostgreSQL and explicitly rewrites application code to remove the third-party dependency, which is the opposite of the cost-effective requirement the question asks for. In all three alternatives, the company either loses required functionality or pays for an unnecessary rewrite, which is why they fail the 'MOST cost-effectively' test.

Community Comment Notes

All of the recorded voters selected the same option, with Scheldon (3 likes) pointing to the RDS Custom documentation and blog links as justification for the BYOL plus privileged-feature combination. jcck202020 reasoned that the customization capability is what lets the solution accommodate the specific third-party features, calling it both suitable and cost-effective. zinabu and Hkayne gave shorter confirmations that BYOL combined with third-party features that need privileged access points directly at RDS Custom for Oracle. The consistent consensus reinforces that standard RDS for Oracle should be rejected in this scenario, not accepted as a cheaper substitute.