using System;

using Microsoft.EntityFrameworkCore;

​

public class Program

{

    public static void Main()

    {

        var db = new MyDb();

        db.Database.Migrate();

    }

}

​

public class MyDb : DbContext

{

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)

    {

        optionsBuilder.UseSqlServer("Server=.");

    }

​

    protected override void OnModelCreating(ModelBuilder modelBuilder)

    {

        modelBuilder.Entity<Parent>(builder =>

        {

            builder.ToTable("ParentTable", tableBuilder =>

            {

                tableBuilder.IsTemporal();

                tableBuilder.Property<DateTime>("PeriodStart").HasColumnName("PeriodStart");

                tableBuilder.Property<DateTime>("PeriodEnd").HasColumnName("PeriodEnd");

            });

            builder.HasKey(t => t.Id);

            builder.OwnsOne(t => t.ChildProp, childBuilder =>

            {

                childBuilder.ToTable("ParentTable", tableBuilder =>

                {

                    tableBuilder.IsTemporal();

                    tableBuilder.Property<DateTime>("PeriodStart").HasColumnName("PeriodStart");

                    tableBuilder.Property<DateTime>("PeriodEnd").HasColumnName("PeriodEnd");

                });

                childBuilder.Property(t => t.Amount).IsRequired().HasPrecision(18, 2).HasColumnName("Parent_Amount");

                childBuilder.Property(t => t.Currency).IsRequired().HasColumnName("Parent_Currency");

            });

        });

    }

​

    public DbSet<Parent> Parents { get; set; }

}

​

public class Parent

{

    public Guid Id { get; set; }

    public Child ChildProp { get; set; }

}

​

public class Child

{

    public decimal Amount { get; set; }

    public string Currency { get; set; }

}