LinqToSql LINQ (Language Integrated Query) is a structured query syntax in .NET used to save and retrieve data

using (var db = new CustomerDataContext(@"Data Source=(localdb)\ProjectsV13;Initial Catalog=CustomerDB;"))
{
    var customer = new Customer()
    {
        FirstName = "Maria",
        LastName = "Anders",
        Address = "Obere Str. 57"
    };
    
    db.Customers.InsertOnSubmit(customer);
    
    db.SubmitChanges();
}