1-《Database auditing》levent V.Orman

 

 

 

数据库的问题：detect errors and maintain integrity

审计策略:efficiency and effectiveness in eliminating errors

Hybrid 混合差分策略

 

最主要的数据库审计工具database integrity constrains

 

Data dictionaries are constructs designed to capture a description of the database ,valid states,correct transformations resulting from update transactions

缺点：limited in scope and usually for human manual analysis rather than automatic enforcement

         实施的完整性校验会来带很高的开销

 

需要找到一种平衡点

provide a methodology for statiscal quality control for erroneous data in commercial database

 

第一种策略：periodic enforcement

第二种策略：transaction counting

第三种策略：a variation on the real-time continuous integrity enforcement

 

两种错误的出处：1，输入错误信息到数据库中 2，没有正确的更新数据导致的错误