“实体数据模型向导”时，您必须指定要使用的数据库连接。

Entity data model Wizard to connect to a database and specify the contents of the model.

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实体数据模型向导从现有数据库生成模型和映射信息以及数据类。

TheEntity data model Wizard generates model and mapping information as well as data classes from an existing database.

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此版本添加了新的SQL Server 2008数据挖掘功能支持，包括维持和交叉验证、新的文档模型向导和对现有向导的改进。

This release adds support for new SQL Server 2008 data mining features including holdout and cross-validation, a new Document Model wizard, and improvements to existing wizards.

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