When you create a new instance, you must choose a Cloud SQL edition. The edition you choose affects the machine series and location you can use for your instance. For more information about the requirements and decisions you must make before creating a new instance, see Plan and prepare overview.

Cloud SQL for SQL Server editions use a tier-based pricing model. Each edition provides different performance, availability, observability, and data protection characteristics to support your business and application needs. Cloud SQL offers the following editions:

• Cloud SQL Enterprise Plus edition: provides enhanced performance, availability, and observability to run applications. This edition also includes the core capabilities of Cloud SQL.
• Cloud SQL Enterprise edition: provides all core capabilities of Cloud SQL and is suitable for applications with less stringent availability and performance requirements.

For details about Cloud SQL editions and the enhancements offered by the Cloud SQL Enterprise Plus edition, see Cloud SQL editions overview.

Cloud SQL key features

The following table provides an overview of key feature enhancements available in Cloud SQL Enterprise Plus edition compared to Cloud SQL Enterprise edition:

	Cloud SQL Enterprise Plus edition	Cloud SQL Enterprise edition
Database versions	SQL Server 2025 Enterprise SQL Server 2022 Enterprise SQL Server 2019 Enterprise	SQL Server 2025 (Standard, Enterprise, and Express) SQL Server 2022 (Standard, Enterprise, Express, and Web) SQL Server 2019 (Standard, Enterprise, Express, and Web) SQL Server 2017 (Standard, Enterprise, Express, and Web)
Availability SLA	99.99% (includes maintenance)	99.95% (excludes maintenance)
Performance
Machine series	N2 Memory-optimized-N2	General purpose dedicated core N4
Machine configuration limits	N2 machine series Up to 128 vCPU Up to 864 GB RAM 1:8 core:memory ratio Memory-optimized-N machine series Up to 16 vCPU Up to 512 GB RAM 1:32 core:memory ratio	General purpose dedicated core Up to 96 vCPU Up to 624 GB RAM 1:6.5 core:memory ratio N4 machine series Up to 80 vCPU Up to 624 GB RAM 1:8 core:memory ratio
Data cache	Yes	No
Point-in-time log retention	Up to 35 days	Up to 7 days
Availability
Maintenance downtime	< 1 second	< 120 seconds
Planned operations downtime	Sub-second downtime	Few minutes
Advanced disaster recovery (DR)	Yes	No
Write endpoint for advanced disaster recovery (DR)	Yes	No
Write endpoint connectivity	Yes	No
Observability
AI-assisted troubleshooting	Yes	No
Query insights	30 day metric retention 1 MB query length 200 query plan sample maximum Wait event analysis Index advisor recommendations	7 day metric retention 4500 bytes query length 20 query plan sample maximum
Enhanced recommenders	Yes	No

What's next

• Plan and prepare to create a new instance.
• Cloud SQL editions overview.
• Machine series overview.
• Create a new instance.