How do I do this
SELECT CEILING(COUNT(*) / 10) NumberOfPages
FROM MyTable
in Linq to SQL?
Many .NET methods are translated to SQL Server functions, such as most of the methods of the Math class and the String class. But there are some caveats.
Also have a look at the SqlMethods class, which exposes additional SQL Server function that doesn't have a .NET equivalent.
But you don't even need any of that in your case:
int numberOfPages;
using (var db = new MyDBDataContext())
{
numberOfPages = (int)Math.Ceiling(db.Books.Count() / 10.0);
}