Data Management (DMS) provides the cross-database query feature. You can use this feature to write dynamic SQL statements to perform join queries across homogeneous or heterogeneous databases that are deployed in different environments. Even if a MySQL database, an SQL Server database, a PostgreSQL database, and a Redis database to be queried are deployed in different regions and environments, you can write a dynamic SQL statement to perform join queries on these databases.
- Perform cross-database queries in DMS. For more information, see Query data across multiple database instances.
Synchronize and process data across databases on a regular basis. For more information, see Configure a cross-database Spark SQL node.