What is the data access layer implemented with?
数据访问层使用什么实现？
Like to use XML files to define your data access layer.
希望使用XML文件来定义数据访问层。
In the process, it also interacts with the data access layer.
在运行过程中，它还会与数据访问层进行交互。
Auto-generate simple data access layer with much less code than JDBC.
使用比jdbc少得多的代码自动生成简单的数据访问层。
Want a simple data access layer code generated by Optim Development studio.
希望通过Optim Development studio生成一个简单的数据访问层。
Begin by taking a look at this application, specifically its data access layer.
首先看看这个应用程序，特别是它的数据访问层。
The data access layer provides a semantic data store, a user profile, and the rules database.
数据访问层提供了一种语义数据存储、一个用户个人文件以及规则数据库。
Finally, the data access layer is a persistent data store, such as a database or file storage.
最后，数据访问层是持久化的数据存储，比如数据库或文件存储。
The business layer generally interacts with the information system through the data access layer.
业务层主要通过数据访问层与信息系统实现交互。
Many users have their own data access layer, with their own APIs, to which the business logic is coded.
许多用户都用自己的数据访问层，使用自己的API编写业务逻辑。
If a data access layer is used, the code might be consolidated there and hidden from the using application.
如果使用数据访问层，代码将整合到其中，对于使用的应用程序是不可见的。
Again, if a data access layer is used, the code can be consolidated there and hidden from the using application.
同样，如果使用数据访问层，代码将整合到其中，对于使用的应用程序是不可见的。
These underlying data access calls are thus consolidated in the data access layer and hidden from the business logic.
这些底层数据调用整合到数据访问层中，对于业务逻辑是不可见的。
The data access layer is responsible retrieving and manipulating data stored in enterprise information systems (EISs).
数据访问层负责对存储在企业信息系统(EIS)中的数据进行存取等操作。
I choose to wrap the DAO in an interface, so I can switch my data access layer to use different persistence strategies.
我选择将这个dao封装在一个接口中，这样我就能够切换数据访问层来使用不同的持久性策略。
You can now generate a pureQuery data access layer for all SQL statements in the *.sql file in one shot using the wizard.
借助向导，您可以轻松地为 *.sql文件中的所有SQL语句生成一个 pureQuery数据访问层。
Since the Person class is what the app's data access layer returns, it is definitely not suited for consumption by the UI.
由于Person类是应用的数据访问层返回的东西，它绝对不适合直接被UI使用。
The data access layer can also act as an integration point to link with other systems, including being a client of other Web services.
数据访问层还可以作为连接其他系统的集成点，可以成为其他Web服务的客户端。
PureQuery provides some basic object-table mapping functionality that can be very useful when you are developing your data access layer.
pureQuery提供了一些基本的对象-表映射功能，这在开发数据访问层时非常有用。
This is a specific implementation of the Repository class for Service Registry, which provides the primary interface to the data access layer.
这个类是服务注册中心Repository类的一个具体实现，它为数据访问层提供了基础的接口。
PDO is not an abstraction layer like PearDB. PDO is a more like a data access layer which USES a unified API (Application Programming Interface).
PDO并不是类似于PearDB的数据库抽象层，而更像一种采用了统一api(应用编程接口)的数据访问层。
We had properly isolated the data access layer, simplifying the optimization of queries (which had sometimes snuck into the business logic on previous projects).
我们适当的将数据访问进行了分层，简化了查询的优化（在之前的项目中数据访问有时会混合在业务逻辑中）。
Business rules are centralized into the business logic layer that serves as an intermediary for data exchange between the presentation layer and the data access layer.
业务规则可以集中到业务逻辑层，该层充当表示层和数据访问层之间的数据交换的中间层。
Developers must write code to implement the data access layer, including optimizing SQL queries, caching results to optimize performance, without compromising an application's footprint.
开发人员必须编写代码来实现数据访问层，包括优化SQL查询、缓存结果以优化性能，而不会损害应用程序的规模。
PureQuery API will still be used to provide the data access layer, but it will return the data rows "as is" to the application, in the form of an Employee object with two variables: id and doc.
仍然使用pureQueryAPI提供数据访问层，但是它把数据行“按原样”返回给应用程序，也就是包含两个变量(id和doc)的Employee对象。
The Business Logic Layer, in turn, requests that the data Access Layer deal with data persistence.
而业务逻辑层则请求数据访问层处理数据持久性。
Figure 1: the BLL Separates the Presentation Layer from the Data Access Layer and Imposes Business rules.
图一：BLL将表示层与DAL隔开了，并且加入了业务规则。
The data Access Layer utilizes WPF data binding to tie UI components to business logic or data components.
数据接口层(Data Access Layer)利用WPF实现UI组件对业务逻辑和数据组件的绑定。
The data Access Layer utilizes WPF data binding to tie UI components to business logic or data components.
数据接口层(Data Access Layer)利用WPF实现UI组件对业务逻辑和数据组件的绑定。
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