It has a star or snowflake-like dimensional database schema design.
它具有星形或雪花形的维数据库模式设计。
Second, it makes the relations and their semantics explicit, whereas in a standard database schema many relations are implicit in design of the schema.
其次，它使关系和它们的语义变成显式的，而在标准的数据库模式中许多关系隐含在模式的设计中。
But when you can design the database schema explicitly for your application, you often don't need a mapping framework.
但是当您能为应用程序显式地设计数据库模式时，您通常不需要映射框架了。
Similarly a database refactoring is a simple change to a database schema which improves the design without breaking nor adding anything.
类似的，数据库重构是对数据库方案的简单变更，是在不破坏且不添加东西的情况下改进设计。
We may even find that we need to refactor some aspects of the existing database schema in order to maintain the quality of the database design.
为了维护数据库设计的质量，我们甚至可能发现，需要重构现有数据库方案中的某些方面。
Listing 3 illustrates the schema from this ultra-simple ORM database design.
清单3展示了来自这个非常简单的OR M数据库设计的模式。
The most important thing you can do when you design a native XML database schema is to avoid the temptation to normalize the data in the same way that you do when you design a relational database.
设计原生XML数据库模式时，最重要的事情是避免使用设计关系数据库时采用的方法来规格化数据。
Also note that in case of database dictionary, the length of each column is fixed at the design time of database schema.
还要注意，对于基于数据库的dictionary，每个列的长度在数据库模式的设计阶段就已经固定。
Please note that in case of database dictionary, the maximum number of synonym is fixed at the time of the design of the database schema.
需要注意，对于基于数据库的dictionary，同义词的最大数量在数据库模式的设计阶段就已经确定。
The previous article discussed how Application Server and Application Developer use an XML file called Schema.dbxmi to represent a relational database schema that is mapped to an EJB design.
上篇文章讨论了ApplicationServer和Application Developer如何使用称为schema . dbxmi的XML文件来表示映射到EJB设计的关系数据库模式。
Using a typical star schema database design, a fact table might contain sales data by product, region, and time period.
按照典型的星型数据库设计，一个事实表包含按产品、地区和时间段排序的销售数据。
Check in the schema and apply this design to your user database.
检入schema，并将此涉及应用到你的用户数据库中。
This article describes design, development and testing of a home-grown tool for database schema updates.
本文介绍的设计，开发和家庭测试增长率为数据库模式升级的工具。
Optimization of relational schema is very important and difficult to design a database system, the ultimate goal of optimization is to construct a good relational schema for database system.
关系模式优化是关系数据库系统设计中的一个重点和难点，优化的最终目的是建立一个良好的关系模式。
And it emphasizes detailed design and implementation processes for client-side, server-side and database schema.
完成了系统客户端、服务端以及数据库端的详细设计与编码实现。
And it emphasizes detailed design and implementation processes for client-side, server-side and database schema.
完成了系统客户端、服务端以及数据库端的详细设计与编码实现。
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