Module | Feature | Single-Node (Formerly Basic Edition) | Dual-Node (Formerly HA Edition and Cluster Edition) | Multi-Node |
Version | - | 2012 Enterprise 2014 Enterprise 2016 Enterprise 2017 Enterprise 2019 Enterprise 2022 Enterprise 2025 Enterprise | 2012 Enterprise 2014 Enterprise 2016 Enterprise 2017 Enterprise 2019 Enterprise 2022 Enterprise 2025 Enterprise | 2017 Enterprise 2019 Enterprise 2022 Enterprise 2025 Enterprise |
Lifecycle | Instance creation | Supported | Supported | Supported |
| Instance restart | Supported | Supported | Supported |
| Automatic renewal | Supported | Supported | Supported |
| Billing mode change | Supported | Supported | Supported |
| Instance termination | Supported | Supported | Supported |
| Read-only instance creation | Not supported | Supported | Supported (enable the feature via the read-only capability of the secondary node.) |
| Specification adjustment | Supported | Supported | Supported |
| Disk scaling | Scale-out: Supported. Scale-in: Not supported. | Local disk scaling: Supported. Cloud disk scale-out: Supported. Cloud disk scale-in: Not supported. | Scale-out: Supported. Scale-in: Not supported. |
| Version upgrade | Supported | Supported | Supported |
| Architecture upgrade | Not supported | Supported | - |
Instance attribute | View of instance list | Supported | Supported | Supported |
| View of instance details | | | |
| Instance name modification | | | |
| Instance remark modification | | | |
| Instance tag settings | | | |
| Maintenance time management | | | |
| Project management | | | |
Service Availability | Highly available method | Compute node migration + disk snapshot | The SQL Server 2012/2014/2016 Enterprise edition uses the Mirror HA version. SQL Server 2017/2019/2022/2025 Enterprise uses Always On HA. | Always On HA is used. |
| Cross-Availability Zone Disaster Recovery | Not supported | Supported | Supported |
| Intra-city disaster recovery | Not supported | Supported | Supported |
| Read-only instance removal | Not supported | Supported | - |
| Cross-AZ migration | Not supported | Supported | Supported |
Backup and restoration | Full backup | Supported | Supported | Supported |
| Data Backup | | | |
| Incremental backup | | | |
| Log backup | | | |
| Scheduled backup | | | |
| Manual backup | | | |
| Packaged backup | | | |
| Single-database backup | | | |
| Instance backup | | | |
| Multi-database backup | | | |
| Backup policy customization | | | |
| Recover by backup set | | | |
| Recover by time point | | | |
| Recover by user backup set | | | |
| Rollback to the current instance | | | |
| Rollback to an existing instance (intra-region) | | | |
| Rollback to an existing instance (cross-region) | | | |
| Backup download | | | |
| Perform backup tasks for a replica instance | Not supported | The SQL Server 2012/2014/2016 Enterprise edition is not supported. The SQL Server 2017/2019/2022/2025 Enterprise edition is supported. | Not supported |
| Backup overview | Supported | Supported | Supported |
| COS object lock WORM mechanism | Supported | Supported | Supported |
| Database recovery mode modification | Supported | Not supported | Not supported |
Monitoring and alarm | Resource monitoring | Supported | Supported | Supported |
| Engine monitoring | | | |
| Real-time monitoring | | | |
| Monitoring policy customization | | | |
| Metric alarm | | | |
| Event alarm | | | |
Account management | Account creation and deletion | Supported | Supported | Supported |
| Account CAM authentication | | | |
| Password reset | | | |
| Database permission setup | | | |
| Table permission setup | | | |
| Standard account | | | |
| Privileged account | | | |
| Designated account | | | |
| Admin account | Supported | Not supported | Not supported |
Database management | Table-level account authorization | Supported | Supported | Supported |
| DMC data management | | | |
| Database creation | | | |
| Database deletion | | | |
| Database cloning | | | |
| Database authorization | | | |
| Change data capture (CDC) | | | |
| Change tracking (CT) | | | |
| Database shrink | | | |
Data security | Security group | Supported | Supported | Supported |
| Database auditing | Supported | Supported | Supported |
| Network encryption | Not supported | Not supported | Not supported |
| TDE encryption | Supported | Supported | Not supported |
| SSL encryption | Supported | Supported | Supported |
| Disk Encryption | Instances using cloud disks and with SQL Server 2019/2022/2025 Enterprise edition are supported. | Instances using cloud disks and with SQL Server 2019/2022/2025 Enterprise edition are supported. | Instances using cloud disks and with SQL Server 2019/2022/2025 Enterprise edition are supported. |
Data channel | Data sync | Not supported | Not supported | Not supported |
| Homogeneous data migration | Supported | Supported | Supported |
| Heterogeneous data migration | Not supported | Not supported | Not supported |
| Publishing/subscription | | Supported | Not supported |
Log management | Error logs | Not supported | Not supported | Not supported |
| Slow logs | Supported | Supported | Supported |
| Run logs | Not supported | Not supported | Not supported |
| Blocking and deadlock events | SQL Server 2012/2014/2016/2017/2019/2022/2025 Enterprise editions are supported. | SQL Server 2012/2014/2016/2017/2019/2022/2025 Enterprise editions are supported. | Supported |
Parameter management | Parameter update | Supported | Supported | Supported |
| Parameter history | | | |
| Parameter template | Not supported | Not supported | Not supported |
Performance optimization | Expert service | Supported | Supported | Supported |
| Resource analysis | Not supported | Not supported | Not supported |
| Engine analysis | | | |
Networking | VPC | Supported | Supported | Supported |
| Public network address | Supported | Supported | Supported |
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