| 时态演绎数据库—模型与查询语言 |
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| 引用本文： | 彭铭 戴军. 时态演绎数据库—模型与查询语言[J]. 计算机科学, 1994, 21(6): 36-42 |
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| 作者姓名： | 彭铭 戴军 |
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| 作者单位： | 复旦大学计算机科学系，复旦大学计算机科学系，复旦大学计算机科学系 上海 200433，上海 200433，上海 200433 |
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| 摘 要： | 时态演绎数据库是引入有效时间、事务时间概念的演绎数据库,能比较真实地反映现实世界的现象和发展状况,因此能满足现在的许多应用,如规划、决策支持系统、医疗信息系统等,因为这些应用不仅需要当前的数据,也需要历史数据
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| 关 键 词： | 时态演绎数据库 模型 查询语言 |
Temporal Deductive Databese: The Model and Query Language |
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| Peng Ming et al.. Temporal Deductive Databese: The Model and Query Language[J]. Computer Science, 1994, 21(6): 36-42 |
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| Authors: | Peng Ming et al. |
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| Affiliation: | Peng Ming et al. |
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| Abstract: | The temporal deductive database model--TedDM is developed from a deductivedatabase model by applying temporal reasoning method (T-resolution),to delineate the deductive mechanism. The query language called TedSQL,which is a superset of SQL,is proposed to retrieve imformation from temporal relations. TedSQL also provides the temporal reasoning capabilities for deductive mechanism,The design for TedDBMS,a temporal deductive database management system, is made. It is going to be carried out on the deductive database system LIDBS 3. 0. |
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| Keywords: | Temporal reasoning Temporal database system Temporal relational algebra. |
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