附加一个新的数据库，报如下异常：
An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)
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Unable to open the physical file "E:\资料库\DB Document\My DB\TestDB.mdf". Operating system error 5: "5(拒绝访问。)". (Microsoft SQL Server, Error: 5120)
解决方案是用administrator权限打开SQLServer Management
