Query rewriting in spatial database for access control
文献类型：会议论文
| 作者 | Chen, Zhen(陈振) ; Chen Rongguo ; Xie Jiong ; Zhang Mingbo ; Cheng Changxiu ; Chen Yingdong |
| 出版日期 | 2011 |
| 会议名称 | 2nd International Conference on Computing for Geospatial Research and Applications, COM.Geo 2011 |
| 会议日期 | May 23, 2011 - May 25, 2011 |
| 会议地点 | Washington, DC, United states |
| 关键词 | Database systems Merging Security systems |
| 通讯作者 | Chen, Zhen(陈振) |
| 英文摘要 | Current database with numerous users requires access control. It is also needed in spatial database systems that keep both spatial attribute and non-spatial attribute safe. The query rewriting technology in spatial database is discussed in this paper. First the operations for merging authorization policies are discussed. By classifying the subjects and permit flag of the authorization policies, two operations, both intersection and union, are discussed with different purpose. And an algorithm for merging user's authorization policies is prompted. Then a view based query rewriting method is set up by replacing the all relations in the query with the corresponding view. That makes sure the finegrained access control for the spatial database and spatial objects. Finally, a spatial database as an application is given to validate the effectiveness of query rewriting technology in spatial database. |
| 收录类别 | EI |
| 会议录 | ACM International Conference Proceeding Series
 |
| 会议录出版者 | Association for Computing Machinery, General Post Office |
| 会议录出版地 | United States |
| 语种 | 英语 |
| ISBN号 | 9781450306812 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/6548]  |
| 专题 | 地理科学与资源研究所_研究生部 |
| 推荐引用方式 GB/T 7714 | Chen, Zhen,Chen Rongguo,Xie Jiong,et al. Query rewriting in spatial database for access control[C]. 见:2nd International Conference on Computing for Geospatial Research and Applications, COM.Geo 2011. Washington, DC, United states. May 23, 2011 - May 25, 2011. |
入库方式： OAI收割
来源：地理科学与资源研究所
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