EF migration shows empty Up() Down() methods

You need to add your table to your implementation of the DbContext class, e.g.

public class MyDatabaseEntities : DbContext {
    public virtual DbSet<MyTable> MyTable { get; set; }
}

While rolling back an existing EF Core Data Context back to empty, my migrations wouldn't generate until I removed the ApplicationDbContextModelSnapshot that accompanied the migrations.

This class is auto-generated and needs to align with your current migration level.