物理数据库结构(physical database structure)是由构成数据库的操作系统文档所决定。每一个oracle数据库是由三种类型的文档组成:数据文档、日志文档和控制文档。
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This article introduced the design solution of the FOC database system solution involved in the physical database structure, object design and etc in detail.
本文从数据库的物理结构、数据库对象设计、数据库备份等方面详细介绍了FOC数据库系统的设计方案。
When somebody designed that database, they didn't have tables like this, so they moved from a model of abstract things they wanted to represent into some physical database structure.
最初设计数据库时,并不存在这样的表,因此这些表需要从抽象的模型中得出,表现为某些实际的数据库结构。
To be effective, it must be simple enough to communicate the required data structure to the end user, yet detailed enough that the database designer can create the physical structure.
为了是数据模型更加有效,它必须足够简单以使最终用户能够沟通必需的数据结构,同时它也要足够详细以使数据库设计人员能够创建物理结构。
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