database abstraction

Two modern open source database abstraction layers offer support for SQLite: PEAR:: DB, included in PHP V5, and the considerably more lightweight ezSQL.

两个先进的开源数据库抽象层对SQLite提供支持：PEAR：：DB，它们包含在PHP V5中，并且被认为是更轻量级的ezSQL。

This is because virtual database abstraction in Slice follows a composite design pattern.

这是因为Slice内的虚拟数据库抽象遵循的是复合设计模式。

PDO ( PHP Data Objects )-A new native database abstraction layer providing performance, ease-of-use, and flexibility.

1最增的数据库抽象层用于提供对数据库访问的对象,拥有良好的性能, 易于使用和灵活性的特点.

PHP's database accesses are done using PEAR:: DB, a handy database abstraction layer that allows the same database-access code to be used regardless of what database is implemented.

PHP的数据库访问是使用PEAR：：DB完成的，这是一个方便的数据库抽象层，不管数据库是如何实现的，它都可以使用相同的数据库访问代码。

The MetaModel Database is an abstraction only and does not actually hold any data: It is simply a model.

MetaModel数据库仅仅是一种抽象，并没有实际保存任何数据：它只是一个模型。

Database abstraction layers allow you to develop your application independent of a database.

数据库抽象层使得你能够与数据库独立的开发你的应用程序。

The Key Technology of Multimedia Database: Feature Abstraction and Indexing

多媒体数据库的关键技术：特征的提取与索引

Embeddable databases are also important for rapid application development, especially if used with a database abstraction layer, such as PEAR:: DB or ezSQL.

嵌入式数据库对于加快应用程序开发也很重要，尤其是在用于数据库抽象层（例如PEAR：：DB或ezSQL）时。

As stated earlier, the focus of the article is to introduce the features that set MDB apart from other database abstraction layers for PHP.

如前面所说，文章的焦点是介绍使得MDB与其他PHP数据库抽象层不同的那些特个性。

The PEAR MDB2 package: Download a portable merge of the PEAR DB and Metabase php database abstraction layers for a common API for all supported RDBMS.

PEAR MDB2包：下载可移植的PEAR DB和Metabase php数据库抽象层的合并包，提供所有受支持RDBMS的通用API。

Additionally, the functions created in the database abstraction layer can be reused for many other model functions that need access to the database.

此外，在创建数据库抽象层的功能，可重复使用许多其他模型功能，需要对数据库的访问。

To use prepared statements in PHP you check out the mysqli extension or use a database abstraction layer like PDO.

在PHP中要使用preparedstatements，你可以查看其使用手册：mysqli扩展或是使用数据库抽象层，如：PDO。

I'll also assume that you're conversant with the basic principles of application development with the Zend Framework, understand the interaction between actions and controllers, and are familiar with the Zend_Db database abstraction layer.

我还将假定您熟悉使用Zend Framework进行应用开发的基本原则，理解行为与控制器之间的交互，并熟悉Zend Db数据库抽象层。