Comparison

Amazon Aurora vs Microsoft SQL Server

On the evidence we track, Amazon Aurora leads this comparison with a composite score of 50/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Amazon Aurora50
Microsoft SQL Server23
Score
Vioscale score
Amazon Aurora50 / 100low · 48%
Microsoft SQL Server23 / 100low · 7%
Pricing
Free tier
Amazon Aurora
Microsoft SQL Server
Model
Amazon Aurorafreemium
Microsoft SQL Servercommercial
Integrations
Count
Amazon Aurora
Microsoft SQL Server3
Security
Disclosure policy
Amazon Aurora
Microsoft SQL Server
Fedramp
Amazon Aurora
Microsoft SQL Server
Gdpr
Amazon Aurora
Microsoft SQL Server
Hipaa
Amazon Aurora
Microsoft SQL Server
Pci
Amazon Aurora
Microsoft SQL Server
Reliability
Sla pct
Amazon Aurora99.999
Microsoft SQL Server
Status page
Amazon Aurora
Microsoft SQL Server
Market
Availability
Amazon AuroraAvailable worldwide
Microsoft SQL ServerAvailable worldwide · HQ US

Capabilities

Feature-by-feature on the axes that matter for relational databases. “-” means undocumented, not absent.

Core
SQL model
Amazon AuroraFull SQL
Microsoft SQL ServerFull SQL
Transactions
ACID transactions
Amazon AuroraFull
Microsoft SQL ServerFull
Highest isolation level
Amazon Aurora-
Microsoft SQL Server-
Consistency
Consistency
Amazon AuroraStrong
Microsoft SQL Server-
Scale
Horizontal scale
Amazon AuroraNatively distributed
Microsoft SQL Server-
Replication
Replication
Amazon Aurora-
Microsoft SQL Server-
Availability
Automatic failover / HA
Amazon Aurora
Microsoft SQL Server-
Deployment
Deployment
Amazon AuroraServerless
Microsoft SQL Server-
Serverless / scale-to-zero
Amazon Aurora
Microsoft SQL Server-
Compatibility
Wire compatibility
Amazon AuroraPostgres protocol
Microsoft SQL Server-
Extensibility
Extensions / plugins / UDFs
Amazon Aurora-
Microsoft SQL Server-
Licensing
Licence class
Amazon AuroraProprietary
Microsoft SQL ServerProprietary
Data types
JSON / document support
Amazon Aurora-
Microsoft SQL Server
Geo / spatial
Amazon Aurora-
Microsoft SQL ServerNative

What each one is

The product in its own terms, so the numbers below have context.

Amazon Aurora

Leader

Aurora is a serverless, relational database service offering zero infrastructure management and instant scaling. It provides 6x the throughput of standard PostgreSQL and MySQL while maintaining full compatibility with both.

Independently observed

Microsoft SQL Server

SQL Server 2025 is a commercial database platform that enables organizations to store, query, and analyze data while incorporating built-in AI capabilities. It supports multiple programming languages and deployment options ranging from on-premises installations to cloud-based managed services.

Independently observed

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Amazon Aurora
Microsoft SQL Server
Deployment
Cloud / SaaS
Amazon Aurora
Microsoft SQL Server
Self-hosted
Amazon Aurora
Microsoft SQL Server

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Amazon Aurora

Leader

Not documented yet.

Microsoft SQL Server

3 total
  • LangChain
  • Semantic Kernel
  • Entity Framework Core
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.