SQL Server 2008教程和Microsoft® SQL Server® 2008 R2 SP2

教程

SQL Server 2008 Tutorial
http://www.quackit.com/sql_server/sql_server_2008/tutorial/

数据库下载

Microsoft® SQL Server® 2008 R2 SP2 - Express Edition
https://www.microsoft.com/zh-cn/download/details.aspx?id=30438