摘要： 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) ------------------------------ 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 SQ 阅读全文