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Amazon RDS vs Azure SQL Database
Short answer: Pick Amazon RDS if you want managed relational databases with high availability; pick Azure SQL Database if you want scalable, managed SQL with AI integration. Both have a free plan.
Which to pick
Pick Amazon RDS if you want…
- Managed relational databases with high availability
- Integrations with AWS Outposts or Amazon RDS Proxy (on Amazon RDS's list, not Azure SQL Database's)
Pick Azure SQL Database if you want…
- Scalable, managed SQL with AI integration
- Managed SQL on Azure
- Integrations with Azure Functions, Azure OpenAI or Azure AI Search (on Azure SQL Database's list, not Amazon RDS's)
Side by side
- What it is
- Amazon RDS:Amazon RDS is a fully managed relational database service that simplifies setup, operation, and scaling of multiple database engines on AWS.
- Azure SQL Database:Azure SQL Database is a fully managed relational database service on Azure with scalable compute, AI features, and built-in security.
- Best for
- Amazon RDS:Managed relational databases with high availability
- Azure SQL Database:Scalable, managed SQL with AI integration
- Who it’s for
- Amazon RDS:Developers and enterprises needing managed relational databases on AWS
- Azure SQL Database:Developers and enterprises building cloud-native or AI-enhanced applications that need relational data storage.
- Pricing
- Amazon RDS:Freemium
- Azure SQL Database:Freemium
- Free plan or trial
- Amazon RDS:Free trial
- Azure SQL Database:Free trial
- Works with
- Amazon RDS:AWS Outposts, Amazon RDS Proxy
- Azure SQL Database:Azure Functions, Azure OpenAI, Azure AI Search, Microsoft Fabric, GitHub Copilot
Amazon RDS features
- Automated management. Handles provisioning, configuration, backups, and patching automatically.
- Multi-AZ high availability. Provides automated failover with Multi-AZ deployments for resilience.
- Engine choice. Supports eight database engines including Aurora, PostgreSQL, MySQL, MariaDB, Oracle, SQL Server, and Db2.
- Flexible deployment. Offers on-premises (Outposts), custom OS/database environments, and proxy services.
- Scalable storage. Provides General Purpose SSD and Provisioned IOPS storage options up to 64 TiB.
- Pricing flexibility. Pay-as-you-go on-demand, Reserved Instances, and Free Tier with no minimum fees.
Azure SQL Database features
- Hyperscale. Scale compute and storage independently, add up to 30 read replicas, and handle massive workloads without redesign.
- Microsoft Copilot. AI assistance for designing, operating, and optimizing SQL databases.
- AI-ready. Native support for Azure OpenAI, vector search, and semantic search to build intelligent apps.
- Data API Builder. Expose tables as REST and GraphQL endpoints for any platform or language.
- Intelligent query processing. Automatic tuning and query optimization improve performance with minimal effort.
- Security & governance. Multi-layered security, Microsoft Defender for SQL, and compliance certifications.
- Dev container templates. Pre-configured development environments for local or cloud development.
- Mirroring in Fabric. Near real-time replication of SQL data into Microsoft Fabric for analytics.
Amazon RDS vs Azure SQL Database FAQ
What is the difference between Amazon RDS and Azure SQL Database?+
Azure SQL Database is a managed SQL service on Microsoft Azure, not AWS.
Should I use Amazon RDS or Azure SQL Database?+
Pick Amazon RDS if you want managed relational databases with high availability or integrations with AWS Outposts or Amazon RDS Proxy (on Amazon RDS's list, not Azure SQL Database's). Pick Azure SQL Database if you want scalable, managed SQL with AI integration, managed SQL on Azure or integrations with Azure Functions, Azure OpenAI or Azure AI Search (on Azure SQL Database's list, not Amazon RDS's).
Is Amazon RDS or Azure SQL Database free?+
Amazon RDS has a free plan and paid plans. Azure SQL Database has a free plan and paid plans.
Do Amazon RDS and Azure SQL Database integrate with the same tools?+
Their integration lists don't overlap: Amazon RDS lists AWS Outposts and Amazon RDS Proxy; Azure SQL Database lists Azure Functions, Azure OpenAI, Azure AI Search, Microsoft Fabric and 1 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.