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The Application of Distributed Database Based on Logistics Management System

Author: JiaLi
Tutor: DongLiLi
School: Xi'an University of Architecture and Technology
Course: Applied Computer Technology
Keywords: Distributed database Logistics Management Oracle Information system
CLC: TP311.13
Type: Master's thesis
Year: 2009
Downloads: 107
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Abstract


With the continuous advancement of modern science, the trend of globalization of information, strengthening, and also the rapid development of the logistics industry, the application of computer and network technology, logistics management information system has been gradually tend to improve the development of the prototype, to be more standardized, more efficient and scale oriented direction. Geographical expansion, the increase in the number of warehouses, information sharing, to procure logistics management information system and put forward higher requirements for the storage and management of data. For the needs of different industries, database development technology showing multiple hotspot, distributed database become one of the main direction. The characteristics of the distribution of physical location and logical integrity of the site autonomy has distributed database to meet the development needs of the logistics management information system and its application to the logistics industry to branch warehouses scattered around third-party logistics company the information through the aggregation of the integrated management, so as to achieve the purpose of savings in manpower and material resources, and increased business efficiency. This study is a logistics warehouse management system independently developed by a company in Shanghai the PowerWMS, on the basis of the existing prototype, through the application of business analysis system, function and module structure, combined with Oracle distributed database technology overall planning system PowerWMS design a distributed database system with a central warehouse site and multiple sub-warehouse site, while the use of horizontal fragmentation and mixed fragmentation data itself divided, after the the divided sub warehouse store site data, capable of producing the greatest degree of local applications. C / S and B / S two structures of the mixed-mode architecture design process, we can uphold the sub-site warehouse autonomy but also reflects the business logic integrity. This article focuses on some of the key technologies of the Oracle distributed database applications using Oracle database link to connect to the warehouse database server, so that users can access the rest of the remote database distributed in different warehouses; use of synonyms, views, stored procedures location transparency and other technology systems; analysis of remote data query optimization techniques to reduce network traffic, improve the response speed of the system; reasonable use of replication technology, will be divided into the warehouse data summary of the information to a central server, provide timely and effective data information for business analysis and decision-making; Finally, we discuss the security of distributed database technology to protect, to enhance the integrity and reliability of the information provided.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer software > Program design,software engineering > Programming > Database theory and systems
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