Object-relational Multimedia Database System

With the developing of multimedia technology, the problem of how to store and manage multimedia data is becoming increasingly important, traditional multimedia database systems can not manage such data effectively. Under this background, "the next generation" multimedia database systems that is Object-Relation Multimedia DataBase Management System(ORMDBMS) has been researched deeply in this paper.The main work is as follows. 1) I research into the two-layer system structure of ORMDBMS and system speciality and discuss detailedly several important problem such as complex object, extension of types, technique of inherit and rule system. 2) Reserches on methods of storage ared carried out. I study mainly the storage of record and object, and bring forward the method of storage when the instance of object is embodied inside of record. 3) In the aspect of indexing, I presented a method that is Generalized B-Tree(GBT) and combining technique of founction template of C++ build the universal algorithm of queries, insert and delete. 4) Finally, I analyze deeply and improve the query processing system of ORMDBMS, and confirm performance algorithm of linking and queries based on Relational DataBase .Management System(RDBMS).