I have two buttons in c# form name as "backup" and "restore"
there is one table contact_book in the database address_book
so please provide me coading for the following two events
1. After clicking on the button "backup" it must generate the backup of the table in database and save the backup file on the desktop
2. And after clicking on the button "restore" it must restore the backup of the table again in the same database
DATABASE IS SQL SERVER