本文作者探索了水轮机选型设计过程中的数据处理及数据库的建立方法,并建立了水轮机过流部件水力设计库。
In this paper, research on data process and database creating method is conducted during the design of hydraulic turbine and the hydraulic design database for flow parts is built.
一位名叫雷蒙德·库兹韦尔的年轻科学家设计出了一台电脑,这是为盲人提供帮助的一个重大突破。
A young scientist named Raymond Kurzweil has now designed a computer which is a major breakthrough in providing aid to the sightless.
我要感谢IBM多伦多实验室的数据库顾问PaulYip,因为他提供了很有价值的帮助和设计建议。
I would like to thank Paul Yip, database consultant with the IBM Toronto Lab, for the much-valued help and design suggestions
本文说明了数据库设计和访问数据库的PHP代码中出现的五个常见问题,以及在遇到这些问题时如何修复它们。
This article illustrates five common problems in database design, in the PHP code that accesses databases, and how to fix these problems when you see them.
也许是图像处理,也许是数据库设计,等等。
It might be image manipulation or maybe database design or whatever.
例如,它讨论逻辑和物理数据库设计。
For example, it discusses logical and physical database design.
现在,您需要大致了解为什么要选择这种有些奇特的数据库设计方法。
Now, you need to briefly understand why one might take this quirky approach to database design.
应当采取哪些方法来进行数据库设计?
What approach should you take in relation to database design?
最后一个数据库设计问题是比萨和浇头。
到这个学期的期末,我们会讨论数据库的设计。
Toward the end of the semester, we'll talk about database design.
本文的范围是数据库设计性能。
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。
Physical database design includes table design, index design, materialized query table design, and the design of the other physical database objects.
它具有星形或雪花形的维数据库模式设计。
It has a star or snowflake-like dimensional database schema design.
要实现这个目标,应当全面了解数据库设计和应用程序。
To achieve that goal, you need a thorough understanding of the database design and applications.
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.
数据库设计的经验表明,模式作为避免编程错误的防护措施很有用。
Experience with database design shows that schemas are most useful as a safeguard against programming errors.
数据库开发人员——负责实际运行的数据库,包括设计数据库、模式、表、表关系、索引,以及对查询进行优化。
Database developer — Responsible for the actual databases in operation, including designing databases, schemas, tables, table relationships, and indexes as well as optimizing queries.
使用存储过程有助于降低客户机对数据库设计的依赖性。
Using stored procedures can help to reduce client dependency on database design.
压缩数据库设计减少了存储设计元素所需的空间。
Compressing the database design reduces the space needed to store these design elements.
数据仓库数据库设计的重点在于查询性能。
The design of a data warehouse database is focused on query performance.
这简化了存储估算,进而简化了物理数据库设计。
This simplifies the storage estimate that eases the physical database design.
许多因素都可以影响数据库服务器的性能,例如硬件系统的设计、数据库对象的设计、数据存储器的管理、应用程序的设计等等。
Many factors can affect the performance of a database server, such as hardware system design, database object design, data storage management, application design, and so forth.
这个数据库的设计如下所示。
设计是与数据库无关的。
数据库设计的起点很简单。
前一节所描述的数据库设计决策的益处。
The benefit of the database design decisions described in the previous sections.
表单元素模板出自雅虎的设计模式库的设计模板套件。
Form elements stencil from the Design stencil kit in the Yahoo! Design Pattern Library.
数据库设计是高度可配置的。
设计新数据库的物理布局应当从设计表空间的组织开始,步骤如下。
Start designing the physical layout of a new database by designing the table space organization, as shown in the following steps.
您可以用很多的方式创建数据库设计、数据库访问和基于数据库的PHP业务逻辑代码,但最终一般以错误告终。
You can create database design, database access, and the PHP business logic code that sits on top of it in any number of ways, and you often end up getting it wrong.
应用推荐