CUBRID is an open source database management system highly optimized for web applications. CUBRID assures the high performance, stability, scalability, and high availability which are required for mission-critical Internet applications.
With cubrids you can use multiple different databases in one application (mysql as well). It's very powerful but also really complex to get up & running with! We solved our integration problems using this platform by connecting MySQL / Oracle DBs together via ODBC drivers like OraDS/Oracle8iClientDriver/. You simply have more flexibility than other solutions when it comes down solving issues that arise from having such heterogeneous datamodel structures working handinhand within your singleβ¦
Pros
Multiple database connections
High performance even though everything is done through memory.