I am doing a project in .Net . My question is that is can i relation sql database with .net?
Yes. It wouldn't be worth much if you couldn't.
well sql server and .net is best combination. its lot of learning involve but it worth.
Yes, you relate your sql database with .net because both of them are product of Microsoft and it will not difficult to install and use the database in .net is not so difficult in comparison of other database software.