Table per Type Entity Framework code first inheritance strategy. From http://weblogs.asp.net/manavi/archive/2010/12/28/inheritance-mapping-strategies-with-entity-framework-code-first-ctp5-part-2-table-per-type-tpt.aspx

EF_TPT_Example.cs

public abstract class BillingDetail
{
  public int BillingDetailId { get; set; }
  public string Owner { get; set; }
  public string Number { get; set; }
}
 
[Table("BankAccounts")]
public class BankAccount : BillingDetail
{
  public string BankName { get; set; }
  public string Swift { get; set; }
}
 
[Table("CreditCards")]
public class CreditCard : BillingDetail
{
  public int CardType { get; set; }
  public string ExpiryMonth { get; set; }
  public string ExpiryYear { get; set; }
}
 
public class InheritanceMappingContext : DbContext
{
  public DbSet<BillingDetail> BillingDetails { get; set; }
  protected override void OnModelCreating(DbModelBuilder modelBuilder)
  {
    modelBuilder.Entity<BankAccount>().ToTable("BankAccounts");
    modelBuilder.Entity<CreditCard>().ToTable("CreditCards");
  }
}