The physical data model gives you a picture of your database entities and lets you make decisions, then execute them on your current database model.

物理数据模型可以提供数据库实体的视图，您可以做出设计决策，然后在当前的数据库模型中实现这些决策。

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The security policy of security database management system provides the powerful security function to database. The model of BLP is one of common security policy model.

安全数据库管理系统的安全策略可以为数据库提供强大的安全功能，现在BLP模型是用得比较普遍的策略模型之一。

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Then, the author works out the model of the data's structure of this system and set up database of classifying land that based on the model of relational database.

然后在此基础上设计出系统的数据组织模式，建立了基于关系数据库模型的土地分类数据库。

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Instead of trying to revamp JIMS with brand-new technology, Harris County has stuck to its grand-design architecture by migrating its legacy database to the more current Model 204 Database Management System, made by Computer Corporation of America, and rewriting Cobol applications in the Model 204 language.

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Using his proprietary model and database of historical trading situations, Way calculates probabilities of future price movements for individual securities.

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In contrast, a NoSQL database provides a more flexible data model, and it can be scaled across multiple machines.

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