免费版 SQL Server 2008 R2 的数据库大小限制提高到 10G。

单独下载和ISO离线安装版下载地址：

http://www.microsoft.com/express/downloads/

Microsoft SQL Server 2008 R2 RTM - Management Studio Express 下载：

http://www.microsoft.com/downloads/details.aspx?displaylang=zh-cn&FamilyID=56ad557c-03e6-4369-9c1d-e81b33d8026b

Microsoft SQL Server2008 R2 RTM - Express with Advanced Services 下载地址：

http://www.microsoft.com/downloads/details.aspx?familyid=E08766CE-FC9D-448F-9E98-FE84AD61F135&displaylang=zh-cn