The business logic, which, in most cases, involves access of data stores like relational databases.
即业务逻辑，(在许多情况下)包括对数据存储(比如关系数据库)的访问。
Triggers are a powerful DB2 database feature that can be used to polarize business logic to the relational database.
触发器是DB2数据库的一个非常强大的特性，您可以使用它将业务逻辑分化到关系数据库这边。
These patterns address presentation, mapping to relational data stores, domain logic, application state management, and common application functions.
这些模式讨论表示、到关系数据存储的映射、域逻辑、应用程序状态管理和创建的应用程序功能。
Once the mapping is done, you can manipulate mapped objects as normal objects and easily submit changes back to relational database without writing complex data access logic.
一旦完成映射，您就可以将他们当成普通对象来处理，无需编写复杂的数据访问逻辑就可以轻松地将更改提交回数据库。
An application's reliance on XML documents for data exchange and relational databases for data persistence are characteristics of the application's business logic (that is, its model).
应用程序依赖XML文件来进行数据交换以及关系数据库来提供数据永久性都是应用程序业务逻辑(也就是其模式)的特征。
Often the technology in question is custom application logic that you wrote yourself to extract data from an XML document and put it into a column on a table in a relational database.
这种技术通常需要自己编写自定义的应用程序逻辑从XML文档中提取数据，然后放到关系数据库的表列中。
To implement application logic by extracting subsets of data and sorting and rearranging this data, relational databases have SQL, and XML has XSLT and XQuery.
要通过抽取数据子集、排序并重新排列数据而实现应用程序逻辑，关系数据库具有SQL，XML具有XSLT和 XQuery。
In your actual implementation, this field can be stored as part of the relational database table used by Portal Server for the user's preferences or it can be derived from some kind of logic.
在您的具体实现中，该字段可以被存储为PortalServer按用户喜好使用的关系数据库表的一部分，也可以从某种逻辑派生出来。
When a relational database system is implemented, three-valued logic is usually adopted to handle incomplete information.
在关系数据库系统的实现中，对不完全信息的处理通常采用三值逻辑。
Triggers are a powerful DB2 database feature that can be used to polarize business logic to the relational database.
触发器是DB 2数据库的一个非常强大的特性，您可以使用它将业务逻辑分化到关系数据库这边。
Triggers are a powerful DB2 database feature that can be used to polarize business logic to the relational database.
触发器是DB 2数据库的一个非常强大的特性，您可以使用它将业务逻辑分化到关系数据库这边。
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