The Developer edition includes Rapid SQL, DB Change Manager, and DB Optimizer. The DBA edition includes Rapid SQL, DB Change Manager, DB Optimizer, and DBArtisan.
DB Optimizer supports SQL Server, Oracle Database, Sybase ASE, and Db2. Furthermore, DBArtisan and Rapid SQL also support Azure SQL Database, MySQL, PostgreSQL, Sybase IQ, and Greenplum.
Please refer to the datasheet for DB PowerStudio for more information.