A database system is provided with a search unit for searching image attribute information that has been stored in a relational database management system. A search interface is provided between the search unit and a command execution unit, which applies a search command to the search unit. The command...http://www.google.com/patents/US7228297?utm_source=gb-gplus-sharePatent US7228297 - Database system, database server, and method of controlling the operation of a database server
