RELATIONAL DATABASE-SYSTEMS WITH ZERO INFORMATION LOSS

被引:18
|
作者
BHARGAVA, G [1 ]
GADIA, SK [1 ]
机构
[1] IOWA STATE UNIV SCI & TECHNOL,DEPT COMP SCI,AMES,IA 50011
基金
美国国家科学基金会;
关键词
TEMPORAL DATABASE; RELATIONAL DATABASE; RELATIONAL ALGEBRA; UPDATE; QUERY; TRANSACTION LOG; TRANSACTION TIME; DATABASE SECURITY; ZERO INFORMATION LOSS; VALID TIME; TRANSACTION TIME DATABASE; VALID TIME DATABASE; BI-TEMPORAL DATABASE;
D O I
10.1109/69.204093
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
We use transaction time for time stamping object values to record their database history and formulate a zero information loss model for database transactions. The model consists of three components, a data history store, an update store, and a query store. In such a model, the effect of a past transaction (a query or an update) can be determined at any time. Additionally, the update and query stores allow us to reconstruct the circumstances of updates and the information divulged in queries. Such a model is suitable for the design of secure, easy to audit database systems.
引用
收藏
页码:76 / 87
页数:12
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