DB 2udb系统编目是描述数据库对象的表的集合。
The DB2 UDB system catalog is a collection of tables that describe database objects.
这要求描述数据库模式并先提供一些数据库信息。
This requires that you describe your database scheme and provide some database information first.
一个参数是描述数据库的关联数组集合：表名、列名、主键和外键。
One parameter is a collection of associative arrays that describe the database: table names, column names, primary keys, and foreign keys.
数据字典是一个储存数据定义和描述数据库结构的小数据库。
A data dictionary is a small database that stores data definitions and descriptions of database structure.
它描述数据库的所有细节，并根据需要的操作，提供操作模型所需的所有信息。
It describes all the details of the database and gives all the necessary information needed to manipulate your models based on what you want to do.
本文描述数据库管理语言skgy的实现算法，详细给出了构件的装配与检索的实现过程。
This paper describes the implementation algorithms of database management language SKGY, with special emphasis on the loading and retrieving of the structures for SKGY.
另外，DB 2VisualExplain只描述数据库正在做什么；它并不提供性能调优建议。
Plus, DB2 Visual Explain only describes what the database is doing; it doesn't provide insight into the performance ramifications of that choice.
我们会通过处理分析的方式，使用数据层次图的概念，以描述数据库分区结构和数据库处理的关系。
We will use the concept of a data hierarchy graph, constructed by means of transaction analysis, to characterize the relationship between a database partition scheme and database transactions.
结合具体实践，详细描述数据库建库与著录、视频点播系统构建、检索与利用等一些技术问题的实现。
Based on practice, this paper detailedly describes some technical solutions for how to construct and catalog the database, how to build VOD system, and how to search and use the resources.
本文详细描述数据库的散列表存储结构，并对建立在此存储结构基础上的连接算法进行了详细的描述。
This essay has describes the hashing table storage structure of database and the arithmetic of nature link between two relation based on hashing table storage structure in detailed.
简言之，DTD描述了词汇表的结构（标记和属性），类似于数据库模式描述数据库的结构（表和列）。
Essentially a DTD describes the vocabulary's structure (the tags and attributes), similar to the way a database schema describes a database's structure (the tables and columns).
如果你的数据库包含敏感信息，您可能希望限制对编目视图的访问，因为编目描述了数据库中的每一个对象。
If your database contains sensitive data, you might want to limit access to the catalog views, because the catalog describes every object in the database.
这些编目描述了数据库对象，例如表、列和索引，并包含关于用户所拥有的访问这些对象的访问类型的信息。
The catalog describes the database objects, such as tables, columns, and indexes, and contains information about the types of access that users have to these objects.
本节描述如何为源和目标数据库创建数据存储。
This section describes how to create datastores for your source and target databases.
本节描述为源和目标数据库创建数据存储并把它们分配给用户所需的步骤。
This section describes the steps required to create datastores for your source and target databases and assign them to users.
然后它用它的双亲请求，根据连接的描述找到正确的数据库统计值，并根据sql键字符串找到语句统计值。
It then USES its parent request to find the right database statistics based on the connection's description, and to find statement statistics based on the SQL key string.
本技巧从问题的简单的描述开始：定义组合数据库键。
This tip starts with a simple description of the problem: defining a composite database key.
访问或技术名称描述物理数据库中的数据对象。
An access or technical name describes a data object as represented in a physical 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.
包括描述实例数据库的内存区。
This includes memory areas that describe the databases on the instance.
对于本文描述的把数据库数据提取到业务逻辑中的所有方式，都可以使用刚才创建的索引。
You will be glad to know that the index you just created can be used in any of the approaches described in this article to fetch data from the database into the business logic.
模式XML文件，描述EJB将要映射到的数据库模式。
The schema XML file that describes the database schema that the EJB will be mapped to.
图3以图形方式显示上面描述的数据库对象。
Figure 3 is a graphical illustration of the database objects described above.
Rubyon Rails迁移可以解决前面描述的涉及数据库和数据结构更改的一些问题。
Ruby on Rails migration solves some of the problems described above involving the database and data structure changes.
以下各部分将描述构建数据库同步场景的步骤。
The following sections describe the steps to build the database synchronization scenario.
正则表达式 /(wn|vera|gazetteer|foldoc)/ 将把打印输出限定到提供相关简要描述的那些数据库。
Regular expression /(wn|vera|gazetteer|foldoc)/ limits the printout to those databases that provide relatively terse descriptions.
看一下DataProject Explorer窗口中的HOME . ldm以及描述这个数据库的表和数据。
Look at HOME.ldm within the data Project Explorer window and the tables and data that describes this database.
本系列中的下一篇文章描述Drupal数据库抽象层，以及如何使用DB 2 Express- c替代mysql或PostgreSQL。
The next article in this series describes the Drupal database abstraction layer, and how DB2 Express-C could be used as an alternative to MySQL or PostgreSQL.
幸运的是，如PramodSadalage和我在重构数据库中所描述的，1手动实现数据库重构是非常直接的。
Luckily, as Pramod Sadalage and I show in refactoring Databases, 1 it's quite straightforward to implement database refactorings manually.
假设在一天中最忙的时间里，有200个应用程序连接到例1中所描述的数据库上。
Suppose during the busiest time of the day, there are 200 applications connecting to the database described in Example 1.
应用推荐