使用以下查询语句（引号部分改为自己数据库文件路径）并将需要输入中文的字段改为nvarchar类型即可。

alter database "F:\code\ASP.NET\MyBookShop\MyBookShop\App_Data\MyBookShop.mdf" set single_user with rollback immediate ; 
go

alter database "F:\code\ASP.NET\MyBookShop\MyBookShop\App_Data\MyBookShop.mdf" collate Chinese_PRC_CI_AS ; 
go

alter database "F:\code\ASP.NET\MyBookShop\MyBookShop\App_Data\MyBookShop.mdf" set multi_user;