1 class Program
 2     {
 3         static void Main(string[] args)
 4         {
 5             var random = new Random().Next(1,10000);
 6             for (var i = 0; i < 2; i++)
 7             {
 8                 var thread = new Thread((o) =>
 9                 {
10                     var id = (int) o;
11                     Process(id);
12                 });
13                 thread.Start(i + random);
14             }
15             
16             Console.ReadLine();
17         }
18 
19         private static void Process(int accountId)
20         {
21             try
22             {
23                 using (var scope = new TransactionScope())
24                 {
25                     using (var db = new TestDbContext())
26                     {
27                         var nothing = db.MpUsers.FirstOrDefault(x => x.AccountId == -1);
28                         Thread.Sleep(1000);
29                         var user = new MpUser()
30                         {
31                             AccountId = accountId
32                         };
33                         db.MpUsers.Add(user);
34                         db.SaveChanges();
35                     }
36                     scope.Complete();
37                     Console.WriteLine(accountId + ": done");
38                 }
39             }
40             catch (DbUpdateException ex)
41             {
42                 Console.WriteLine(accountId + ": " + ex.InnerException.InnerException.Message);
43             }
44         }
45         
46 
47     }