A CORBA-Based Multidatabase System——Panorama Project

作     者：Lou Qin\|jian, Sarem Mu dar, Li Rui\|xuan, Xiao Wei\|jun, Lu Zheng\|ding, Chen Chuan\|bo School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China 

作者机构：School of Computer Science and Technology Huazhong University of Science and Technology Wuhan 430074 Hubei China 

出 版 物：《Wuhan University Journal of Natural Sciences》 (武汉大学学报（自然科学英文版）)

年 卷 期：2003年第8卷第1A期

页      面：21-27页

学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 

基　　金：SupportedbytheNationalHighPerformanceFoundationofChina(9931 9) 

主　　题：heterogeneity CORBA architecture interoperabil ity schema integration multidatabase system 

摘      要：Panorama is a multidatabase system (MDBS) devel oped in HUST. The project aims to achieve interoperability among existing, heter ogeneous, federated database management systems such as Oracle8, Sybase, and DM2 (A database management system developed at HUST, Wuhan, China). This system is based on OMG s distributed object management architecture and it is implemented on top of CORBA compliant, namely VisiBroker, which is used as its infrastructu re. Panorama can provide its users a single common data model and a single globa l query language named PanoSQL, which make it possible to incorporate different databases into the system. The main component of this system are interfaces for the Local DBMSs that participate in Panorama, a transaction manager, a common da ta model, a schema integrator, a global query language, and a global query proce ssing and optimization. We first discuss the architecture and components of Panorama system. We also dis cuss the schema integration in this system. And we extend our discussion to the query language, transaction management, and the query processing developed for t his system. Finally, a conclusion and the future work for our designed system ha ve been given.