如何在独立的MDF中还原和备份数据

Question

I am developing a windows form application in c# visual studio 2010, where I want to create a feature in which a user is allowed to restore and backup the database by itself. The problem is that I am using a standalone mdf file.

i am using sql server express by attaching mdf file to the application, when i try to backup using query it's work but when i try restore the database using query it say that it's say that doesn't have permission to alter table. And then i try to using smo but it say that unable to open the file. So i am wondering if there is any option

Answer 1

To create a backup using t-sql you can use:

BACKUP DATABASE AdventureWorks 
TO DISK = 'C:\BACKUP\AdventureWorks.bak'
GO

To restore use:

RESTORE DATABASE AdventureWorks FROM DISK = 'C:\BACKUP\AdventureWorks.bak'
GO

Add WITH REPLACE to replace the existing database.

You can fire those SQL commands using ExecuteNonQuery .

Note: this works on Standard SQL Server, but I have not used it on SQL Server Express with an attached database file.