Cloud SQL is Google’s managed database service for MySQL, PostgreSQL, and SQL Server. Automatic backups, patches, and high availability with low administration effort.
What is Cloud SQL?
Cloud SQL provides fully managed relational databases on Google Cloud. You choose MySQL, PostgreSQL, or SQL Server, and Google handles patches, backups, replication, and monitoring. Your team focuses on the application, not database administration.
Cloud SQL is offered in the Enterprise and Enterprise Plus editions. Enterprise Plus targets more demanding workloads and offers, among other things, larger maximum instance sizes and near-zero-downtime maintenance operations. With up to 64 TB of storage per instance, Cloud SQL scales for most business applications.
Core Features
- Three Database Engines: MySQL, PostgreSQL, and SQL Server
- Editions model: Enterprise and Enterprise Plus with different performance and availability characteristics
- Automatic Backups: Backups with point-in-time recovery
- High Availability: Automatic failover via a regional HA configuration
- Read Replicas: Scaling of read operations
- Private IP: VPC-native connections without public internet
Cloud SQL vs. AlloyDB vs. Spanner
| Criteria | Cloud SQL | AlloyDB | Cloud Spanner |
|---|---|---|---|
| Engine | MySQL, PostgreSQL, SQL Server | PostgreSQL-compatible | GoogleSQL/PostgreSQL dialect |
| Scaling | Primarily vertical | Vertical, decoupled compute/storage architecture | Horizontal, automatic sharding |
| Regions | Regional (with replicas) | Regional | Regional, dual-region, or multi-region |
| Use case | Standard workloads | Demanding PostgreSQL workloads | Global or cross-region, mission-critical |
| Pricing model | Pay-per-use by instance size/edition | Pay-per-use by instance size | Pay-per-use by processing units/edition |
Typical Use Cases
Web and Mobile Applications
Cloud SQL with MySQL or PostgreSQL is ideal for web and mobile app backends. Instance size scaling with growing load, read replicas for high read load.
E-Commerce Platforms
Transaction safety for orders and payments. High availability reduces the risk of revenue loss from outages. Point-in-time recovery enables data restoration after errors.
Migration from On-Premises
The Database Migration Service (DMS) migrates existing MySQL, PostgreSQL, or SQL Server databases to Cloud SQL with minimal downtime.
Benefits
- Low administration effort: Patches, backups, and failover are largely managed by Google
- Proven engines: MySQL, PostgreSQL, SQL Server without a proprietary database format
- Editions to match your needs: Enterprise for standard workloads, Enterprise Plus for higher performance and availability requirements
- Integrated: Native connectivity to GKE, Cloud Run, and other Google Cloud compute services
Integration with innFactory
As a certified Google Cloud partner, innFactory supports you with Cloud SQL: database design, migration from on-premises, choosing the right edition, performance optimization, and high-availability setup.
Available Tiers & Options
MySQL
- Open source, large ecosystem
- Ideal for web applications
- Lower costs
- Limited scaling vs. Spanner
PostgreSQL
- Advanced features (JSON, GIS)
- Better complexity handling
- Strong ACID compliance
- Slightly higher resource usage
SQL Server
- Enterprise features
- Windows/.NET integration
- Familiar environment for Microsoft teams
- License costs
- Higher pricing
Typical Use Cases
Technical Specifications
Frequently Asked Questions
What is Cloud SQL?
Cloud SQL is a fully managed database service for MySQL, PostgreSQL, and SQL Server on Google Cloud. You get automatic backups, patches, replication, and high availability without dedicated DBA effort. The service is offered in the Enterprise and Enterprise Plus editions.
How does Cloud SQL differ from Cloud Spanner?
Cloud SQL offers classic relational databases for regional workloads with primarily vertical scaling. Cloud Spanner scales horizontally across regions with global consistency. Cloud SQL is usually cheaper for standard workloads, while Spanner is better suited for globally distributed, mission-critical applications.
How do I migrate existing databases to Cloud SQL?
Google offers the Database Migration Service (DMS) for migrations with minimal downtime. DMS supports MySQL, PostgreSQL, and SQL Server from on-premises environments, AWS RDS, Azure, or other sources.
How are backups handled in Cloud SQL?
Cloud SQL performs automatic backups and enables point-in-time recovery over a configurable period. On-demand backups are additionally available at any time. Details on retention periods and storage locations are in the official documentation.
What is the difference between Enterprise and Enterprise Plus?
Compared to the Enterprise edition, Enterprise Plus offers higher maximum instance sizes, near-zero-downtime maintenance operations, and additional performance and observability features. The standard edition suits most classic workloads, while Enterprise Plus is designed for more demanding availability and performance requirements.
Note: All product information on this page has been compiled with care, but is provided without guarantee and may be outdated or incomplete. Cloud services evolve rapidly — features, pricing, SLAs, and availability change frequently. Authoritative and up-to-date information can only be found on the official product page of Google Cloud (official documentation). This page does not represent an offer by Google Cloud.
