Amazon Aurora PostgreSQL with Babelfish allows SQL Server applications to run directly on Aurora PostgreSQL with minimal code changes. Babelfish adds a SQL Server-compatible endpoint, significantly lowering costs compared to running licensed SQL Server instances on RDS or EC2.
AWS Documentation Extract:
“Babelfish for Aurora PostgreSQL enables Aurora to understand T-SQL and SQL Server wire protocol, allowing you to run SQL Server applications on Amazon Aurora PostgreSQL with lower costs.”
(Source: Babelfish for Aurora PostgreSQL documentation)
A, D: SQL Server on EC2 or RDS incurs high Microsoft licensing costs.
C: Plain PostgreSQL would require more code refactoring than Babelfish.
[Reference: AWS Certified Solutions Architect – Official Study Guide, Babelfish and Cost Optimization., ]
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