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https://ah.lib.nccu.edu.tw/handle/140.119/69390
題名: | Design Of Distributed Databases on Local Computer Systems with a Multiaccess Network | 作者: | 連耀南 Wah, Benjamin W.; Lien,Yao-Nan |
貢獻者: | 資科系 | 關鍵詞: | Broadcast;concurrency control;file allocation;local computer network;miltiaccess bus;priority;query processing;transaction | 日期: | Jul-1985 | 上傳時間: | 28-Aug-2014 | 摘要: | Concurrency control, distribution design, and query processing are some of the important issues in the design of distributed databases. In this paper, we have studied these issues with respect to a relational database on a local computer system connected by a multi-access broadcast bus. A broadcast bus allows information to be distributed efficiently, and hence simplifies the solutions to some of these issues. A transaction model that integrates the control strategies in concurrency control and query processing is proposed. In concurrency control, the lock, unlock, and update of data are achieved by a few broadcasts. A dynamic strategy is used in query processing, as less data are transferred when compared to a static strategy. The status information needed in dynamic query processing can be conveniently obtained by broadcasting. Lastly, some NP-hard file placement problems are found to be solvable in polynomial time when updates are broadcast | 關聯: | IEEE Transactions on Software Engineering,11(7),606-619 | 資料類型: | article | DOI: | http://dx.doi.org/10.1109/TSE.1985.232505 |
Appears in Collections: | 期刊論文 |
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File | Description | Size | Format | |
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606-619.pdf | 63.44 MB | Adobe PDF2 | View/Open |
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