双击要打开的数据库关系图的名称。
Double-click the name of the database diagram you want to open.
数据库关系图以图形方式显示数据库的结构。
Database diagrams graphically show the structure of the database.
当不再需要某数据库关系图时，可以将其删除。
When you no longer need a database diagram, you can delete it.
可以在“属性”窗口中显示数据库关系图的属性。
You can display properties for a database diagram in the properties window.
可以打开数据库关系图以查看或编辑关系图的结构。
You can open database diagrams to view or edit the diagram's structure.
使用数据库关系图可以创建和修改表、列、关系和键。
Using database diagrams you can create and modify tables, columns, relationships, and keys.
可以使用“服务器资源管理器”创建新的数据库关系图。
You can use Server Explorer to create new database diagrams.
下面的主题介绍了使用设计器处理数据库关系图的基本知识。
The following topics cover the basics of using the designer to work with database diagrams.
该数据库关系图在“数据库设计器”中打开，从中可以编辑该关系图。
The database diagram is opened in the database diagram Designer, from which you can edit the diagram.
在服务器资源管理器、数据库关系图设计器或表设计器中选择应用该约束的列。
Select the column to which the constraint applies in Server Explorer, Database Diagram Designer, or Table Designer.
确保没有在数据库关系图设计器中选择任何对象，方法是在该设计器中对象以外的任意位置单击。
Make sure that no objects are selected in Database Diagram designer by clicking anywhere within the designer except on an object.
如果有其他打开的数据库关系图或表设计窗口连接到同一个数据库，请将它们也关闭而不保存更改。
If you have other open database diagrams or table design Windows connected to the same database, close them without saving changes as well.
数据库关系图设计器提供了一个窗口，可在其中以可视化方式创建、编辑和显示数据库中的表和关系。
Database Diagram Designer provides a window where you can visually create, edit, and show the tables and relationships in a database.
通过保存数据库关系图，可以保存对其进行的所有更改，包括对表、列和其他数据库对象所做的任何更改。
By saving a database diagram, you can save all the changes you made to it, including any changes you made to the tables, columns and other database objects.
为帮助您创建这些对象，可视化数据库工具提供三种设计器：数据库关系图设计器、表设计器及查询和视图设计器。
To help you create these objects, Visual Database Tools provides three designers: the Database Diagram, Table, and Query and View designers.
注意它们包含了与数据库表列，以及设置的主关键字、关系相对应的区域(图19)。
Notice that they contain fields corresponding to the database table columns and that the primary keys and relationships have been set (Figure 19).
数据库模型：包括SOA使用的数据库的实体关系图。
Database model: Includes an entity relationship diagram for the databases the SOA USES.
图2演示了关系数据库中的星形模式。
Figure 2 illustrates the star schema in the relational database.
图7描述了关系数据库中的星型模式。
Figure 7 illustrates the star schema in the relational database.
在 2005 年，曾经为PDB开发过这样的一个关系数据库模式，如图2 所示。
Such a relational database schema for the PDB was developed in 2005 and is shown in Figure 2.
图1显示了Acme成员子系统的物理关系数据库。
Figure 1 represents the physical relational database for Acme's membership subsystem.
图3说明了给定分区的数据库对象之间的关系。
Figure 3. DB2 object-relationship diagram for a given database partition.
将继承映射到关系数据库中有三种基本解决办法，为更好地理解它们，我将讨论在图1中显示的映射类图表的优缺点。
There are three fundamental solutions for mapping inheritance into a relational database, and to understand them I will discuss the trade-offs of mapping the class diagram presented in Figure 1.
本文论述了关系图象数据库管理系统IMDAT所使用的扩充的关系数据库模式及其实现。
A model for the extended relational database system, which is used for the relational image database management system IMDAT, and its implementation are described.
依据实体关系图可以建立物理的数据库。
The physical database should be created by the entity relationship diagram.
提出一种利用关系数据库系统在一般图结构的半结构化数据上进行近似查询的途径。
An approach to approximate querying of general graph structured semistructured data is proposed based on a relational database system.
然后对数据库的设计进行了详细的介绍，并绘制了实体关系图。
And then it has introduces the design of database in detail, and drawn entity relationship diagram.
在系统的数据库分析设计中，通过绘制类图详细分析了各数据的属性以及数据间的关系。
Various types of data and their mutual relationships are identified and modeled as classes by building class Diagrams in database design.
对于关系数据库表的设计常采用的方法是建立E—R图，然后进行映射生成相应的数据库表。
The tradionary method for designing relation database table is to erect E - R diagram, and then tran mapped to database table.
对于关系数据库表的设计常采用的方法是建立E—R图，然后进行映射生成相应的数据库表。
The tradionary method for designing relation database table is to erect E - R diagram, and then tran mapped to database table.
应用推荐