CUBRID is a comprehensive relational database management system highly optimized for Web applications. CUBRID is fast and powerful. Its multi-process architecture and its multi-threaded server implementation scale very well as the data and the number of users grow. CUBRID has optimizations such as Click Counter feature and Fast Concurrent Insertions, which are designed for Web applications' high workloads. CUBRID is a reliable and feature-rich DBMS. The high availability (HA) and replication features can help you provide non-stop service. Query plan caching and query result caching allow your application to serve read-mostly queries with minimal server resource usage. It supports unlimited databases. As a relational database system, CUBRID provides seamless transactions even for your high-volume databases, regardless of the number and the size of your databases or tables.