检索结果-南通市图书馆

A CORBA-Based multidatabase system——Panorama Project

Wuhan University Journal of Natural Sciences 2003年第1A期8卷 21-27页

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 School of Computer Science and Technology Huazhong University of Science and Technology Wuhan 430074 Hubei China

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.

关键词： heterogeneity CORBA architecture interoperabil ity schema integration multidatabase system

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Registering Different DBMSs to Panorama with CORBA

引用

Wuhan University Journal of Natural Sciences 2001年第Z1期6卷 423-431页

作者： Sarem Mudar, Li Rui\|xuan, Xiao Wei\|jun, Lu Zheng\|ding School of Computer Science, Huazhong University of Science and Technology,Wuhan 430074, China School of Computer Science Huazhong University of Science and Technology Wuhan China

Recently, there is an increasing use of CORBA implementation in developing multidatabase systems. MIND and Panorama are some of the examples of multidatabase prototypes that have been implemented on the top of CORBA compliant namely ObjectBroker and VisiBroker respectively. They both aim to achieve interoperability among Oracle, Sybase and other different DBMSs through the registration of these DBMSs to them using CORBA. This registration to a CORBA based multidatabase system offers an advanced way in achieving *** first introduce Panorama multidatabase system and discuss the basic implementation decisions in registering different DBMSs using the CORBA compliant ORB, namely VisiBroker to this system. Then, it aims to discuss the method we've used in registering different DBMSs to our designed multidatabase system Panorama. A detailed discussion about the registration of Oracle8 and Sybase is given. And finally, a conclusion and the future work for this system have been given.

关键词： heterogeneity CORBA interoperability multidatabase system

来源：

维普期刊数据库

同方期刊数据库评论