conn = sqlite3.connect('..\\akk.db')
        cur = conn.execute("select id,name,pass,cnt from accounts where checked=0 and used =1");
        res = cur.fetchone()

  <connectionStrings>
    <add name="DefaultConnection" connectionString="Data Source=.\Store.db" providerName="System.Data.SQLite" />
  </connectionStrings>

    <entityFramework>
    <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
      <parameters>
        <parameter value="v13.0" />
      </parameters>
    </defaultConnectionFactory>
    <providers>
      <provider invariantName="System.Data.SQLite" type="System.Data.SQLite.EF6.SQLiteProviderServices, System.Data.SQLite.EF6" />
      <provider invariantName="System.Data.SQLite.EF6" type="System.Data.SQLite.EF6.SQLiteProviderServices, System.Data.SQLite.EF6" />
    </providers>
  </entityFramework>
  <system.data>
    <DbProviderFactories>
      <add name="SQLite Data Provider (Entity Framework 6)" invariant="System.Data.SQLite.EF6" description=".NET Framework Data Provider for SQLite (Entity Framework 6)" type="System.Data.SQLite.EF6.SQLiteProviderFactory, System.Data.SQLite.EF6" />
      <add name="SQLite Data Provider" invariant="System.Data.SQLite" description=".NET Framework Data Provider for SQLite" type="System.Data.SQLite.SQLiteFactory, System.Data.SQLite" />
    </DbProviderFactories>
  </system.data>

	public class Customer :INotifyPropertyChanged
	{
		private int id;
		private string name;
		private string address;

		public Customer(int _id, string _name, string _address)
		{
			id = _id;
			name = _name;
			address = _address;
		}

		public Customer(Customer _customer)
		{
			id = _customer.Id;
			name = _customer.Name;
			address = _customer.Address;
		}

		public Customer()
		{
		}
		[Key]
		public int Id { get => id; set => id = value; }
		public string Name { get { return name; } set { name = value; OnPropertyChanged("Name"); } }
		public string Address { get { return address; } set { address = value; OnPropertyChanged("Address"); } }

		public event PropertyChangedEventHandler PropertyChanged;
		public void OnPropertyChanged([CallerMemberName]string prop = "")
		{
			if (PropertyChanged != null)
				PropertyChanged(this, new PropertyChangedEventArgs(prop));
		}
	}

	public class AppContext : DbContext
	{
		public AppContext() : base("DefaultConnection")
		{
			//
		}

		public DbSet<Customer> Customers { get; set; }
	}

			db = new AppContext();
			db.Customers.Load();
			this.DataContext = db.Customers.Local.ToBindingList(); // это для WPF

			var qry = from c in db.Customers select c;
			foreach(var c in qry)
			{
				Debug.WriteLine("Customer #{0}: {1} from '{2}'", c.Id.ToString(), c.Name, c.Address);
			}