The constraints security layer consists of integrity constraints, classification and inference constraints, access constraints, and application semantics constraints. The adaptive detection layer consists of active database lev-el, relation schema level, transaction level and application semantics level.

  • 将约束安全层分为完整性约束、分级和推理约束、访问约束和应用语义约束四个子层,将适应性检测层分为数据库活动级、关系模式级、事务级和应用语义级四个子层。

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