For example, it discusses logical and physical database design.
例如，它讨论逻辑和物理数据库设计。
You simply copy back the physical database files into the right locations.
只需将物理数据库文件复制回正确的位置即可。
A logical identifier must not be the same as the name of the physical database.
一个逻辑的标识不能与物理数据库的名称相同。
Such features can help administrators fine-tune their physical database design.
这些特性有助于管理员更好地调整物理数据库设计。
An access or technical name describes a data object as represented in a physical database.
访问或技术名称描述物理数据库中的数据对象。
The physical database should be created by the entity relationship diagram.
依据实体关系图可以建立物理的数据库。
Database model: Encapsulates a logical and physical database design for this specific project.
数据库模型：封装供此特定项目使用的逻辑和物理数据设计。
Offline backup is the backup of all the physical database files after a normal database shutdown.
脱机备份是正常关闭数据库之后，对所有物理数据库文件执行的备份。
One data block corresponds to a specific number of bytes of physical database space on disk.
一个数据块对应于一个特定数量字节的磁盘上的物理数据库空间。
Take an example of comparing a physical database model with a database that is already implemented.
下面对一个物理数据库模型和一个已经实现的数据库进行对比。
Optionally, data modeler can transform a LDM into a physical database schema and DDL using Rational Data Architect.
数据建模师还可以选择使用RationalDataArchitect 将LDM 转换为一个物理数据库模式和DDL。
We use the built-in Derby database for this example, with the physical database file residing in the temporary directory.
这个示例使用了内置的Derby数据库，物理数据库文件位于临时目录中。
In this case, a logical lock (not a physical database lock) is used to flag that a row is in use for a long-term duration.
在本方案中，通过逻辑锁(而不是物理锁)来对在较长时间中使用的数据行进行标记。
These resources include the disk resources of the physical database, the network resources, and the database server resources.
这些资源包括物理数据库的磁盘资源、网络资源和数据库服务器资源。
As Figure 4 shows, DPF is a physical database design option that USES multiple separate database partitions in a multi-processing environment.
如图4所示，DPF是一种物理数据库设计选项，它在一个多处理环境中使用多个单独的数据库分区。
As a consequence, alternative patterns that provide the integrated data set in a single physical database can allow for improved response times.
因此，在单个物理数据库中提供集成数据集的替代模式的响应时间会有所改善。
LDM should avoid being bound by a physical database, an application, or a business unit in order to be a true semantic hub across the enterprise.
LDM应避免被物理数据库、应用程序或业务单元束缚，从而实现跨整个企业的语义中心。
Physical database design includes table design, index design, materialized query table design, and the design of the other physical database objects.
物理数据库设计包括表设计、索引设计、物化查询表设计，以及其他物理数据库对象的设计。
Fewer buffer pools and table Spaces and fewer distinct page sizes lead to a simpler physical database design which is easier to manage, maintain, and tune.
更少的缓冲池和表空间，以及更少的页宽种类，可以导致更简单的物理数据库设计，从而更容易管理、维护和调优。
As physical database locks are held for a longer time duration than with an optimistic locking strategy, there is more of a chance for performance and throughput being impacted.
同乐观锁定策略相比，物理数据库锁需要持续较长的时间，因此应用程序性能和吞吐量很可能会受到影响。
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。
By using the view abstraction between the application server and the physical database tables, we are able to keep information stored in a persistence table even if the EJB is redeployed.
通过在应用服务器和物理数据库表之间使用视图抽象，即使重新部署EJB，也可以使信息存储在持久性表中。
Physical database schema is too complex
物理数据库模式相当复杂
This information gets transformed into a logical (or physical) database design.
该信息转换成逻辑的(或物理的)数据库设计。
This information gets transformed into a logical (or physical) database design.
该信息转换成逻辑的(或物理的)数据库设计。
应用推荐