Inference control in databases is a key field of multilevel secure database system (MLS-DBS) and is an important means to achieve database security.
数据库推理控制是研究高安全等级的安全数据库系统的关键技术之一，是保障数据库安全的重要手段。
On the other hand, multilevel secure database system can not meet timing requirements, so the study of concurrency control protocol in SRTDBS is extremely important significance.
另一方面，安全数据库又不能满足实时性要求，所以对SRTDBS中并发控制协议的研究具有极其重要的意义。
In a secure distributed database system, information inconsistency often exists, thus gives rise to inference channel.
安全分布式数据库系统中，常会出现信息不一致现象，由此产生推理通道。
Database is an important part of CBTC system and act as a key point in the CBTC system secure operation.
数据库是CBTC系统的重要组成部分，在CBTC系统的安全运行中起到关键的作用。
This paper introduced function and sub-module design of the security culture management subsystem in Xiangbei Locomotive Depot, specially elaborated the system database design and secure design.
介绍了襄樊北机务段安全文化管理子系统要实现的功能及其各系统子模块设计，对系统的数据库设计思想和安全性设计进行了特别阐述。
This paper introduced function and sub-module design of the security culture management subsystem in Xiangbei Locomotive Depot, specially elaborated the system database design and secure design.
介绍了襄樊北机务段安全文化管理子系统要实现的功能及其各系统子模块设计，对系统的数据库设计思想和安全性设计进行了特别阐述。
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