Supported Databases

Real-Time Migration

You can migrate all database objects across cloud platforms, from on-premises databases to the cloud, or across regions on the cloud in real time. The following table lists the supported databases, versions, and migration types. For more information about real-time migration, see Real-Time Migration.

Self-built databases refer to on-premises databases and databases created on an ECS. RDS for MySQL refers to the MySQL databases on RDS instances.

Data cannot be migrated from a newer version database to an older version database.

MySQL Serving as the Source in Migration

**Table 1** Database information
Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Migration Type
MySQL	On-premises MySQL databases Versions 5.5, 5.6, 5.7, and 8.0 MySQL databases built on other clouds Versions 5.5, 5.6, 5.7, and 8.0	RDS for MySQL All versions	Full Full+Incremental
MySQL	RDS for MySQL All versions	Self-built or other cloud MySQL Versions 5.5, 5.6, 5.7, and 8.0	Full Full+Incremental

Real-Time Synchronization

Real-time synchronization refers to the process of copying data from one data source to another database while keeping data consistency. In this way, the data of key services can flow in real time. The following table lists the supported databases, versions, and synchronization types. For more information about real-time synchronization, see Real-Time Synchronization.

Self-built databases refer to on-premises databases and databases created on an ECS. RDS for MySQL refers to the MySQL databases on RDS instances.

Data cannot be migrated from a newer version database to an older version database.

MySQL Serving as the Source in Synchronization

**Table 2** Database information
Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
MySQL	Self-built or other cloud MySQL Versions 5.5, 5.6, 5.7, and 8.0	RDS for MySQL All versions	Incremental Full Full+Incremental
		RDS for PostgreSQL Versions 9.5, 9.6, 10, and 11	Full Full+Incremental
		Kafka Version 0.11 or later	Incremental Full+Incremental
	RDS for MySQL All versions	Self-built or other cloud MySQL Versions 5.5, 5.6, 5.7, and 8.0	Incremental Full+Incremental
		Kafka Version 0.11 or later	Incremental Full+Incremental
		Self-built Oracle Versions 10g, 11g, 12c, 18c, and 19c	Full+Incremental

PostgreSQL Serving as the Source in Synchronization

**Table 3** Database information
Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
PostgreSQL	Self-built PostgreSQL Versions 9.4, 9.5, 9.6, 10, 11, 12, 13, and 14 PostgreSQL on other clouds Versions 9.4, 9.5, 9.6, 10, 11, 12, 13, and 14 RDS for PostgreSQL Versions 9.5, 9.6, 10, 11, 12, 13, and 14	RDS for PostgreSQL Versions 9.5, 9.6, 10, 11, 12, 13, and 14	Incremental Full Full+Incremental

Oracle Serving as the Source in Synchronization

**Table 4** Database information
Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
Oracle	Self-built Oracle Versions 10g, 11g, 12c, 18c, 19c, and 21c	RDS for MySQL All versions	Incremental Full Full+Incremental
		RDS for PostgreSQL Versions 9.5, 9.6, 10, 11, 12, 13, and 14	Full Full+Incremental
		Kafka Version 0.11 or later	Incremental

Real-Time Disaster Recovery

To prevent service unavailability caused by regional faults, DRS provides disaster recovery to ensure service continuity. The floowing table lists the databases and versions supported by real-time DR. For more information about real-time DR, see Real-Time Disaster Recovery.

Self-built databases refer to on-premises databases and the databases created on an ECS. RDS for MySQL refers to the MySQL databases on RDS instances.

Disaster recovery cannot be performed from a later version database to an earlier version database.

MySQL Serving as the Source in DR

**Table 5** Database information
Service DB Engine	Service DB Type and Version	DR DB Type and Version
MySQL	Self-built or other cloud MySQL Versions 5.6, 5.7, and 8.0	RDS for MySQL All versions
MySQL	RDS for MySQL All versions	Self-built or other cloud MySQL Versions 5.6, 5.7, and 8.0