C# NHibernate事务在Postgres上无法正常工作

我有桌面应用程序和web应用程序引用的公共dll。其中一个方法创建3个对象并将它们插入事务中的DB中

               Notifications not = new Notifications();
               not.Notes = applicationName;
               not.GeneratedTime = DateTime.Now;
               using (var session = SessionManager.OpenSession())
               using (var transaction = session.BeginTransaction())
               {
                   // do what you need to do with the session
                   session.Save(not);

               not = new Notifications();
               not.Notes = applicationName;
               not.GeneratedTime = DateTime.Now;

                   session.Save(not);

               not = new Notifications();
               not.Notes = applicationName;
               not.GeneratedTime = DateTime.Now;

                   // do what you need to do with the session
                   session.Save(not);
                   transaction.Commit();
               }

但是，当我同时从web应用程序和桌面应用程序调用此方法时，对象不是3by3插入的…它们的顺序是混合的（1来自桌面应用程序，1来自web应用程序，等等）

               Notifications not = new Notifications();
               not.Notes = applicationName;
               not.GeneratedTime = DateTime.Now;
               using (var session = SessionManager.OpenSession())
               using (var transaction = session.BeginTransaction())
               {
                   // do what you need to do with the session
                   session.Save(not);

               not = new Notifications();
               not.Notes = applicationName;
               not.GeneratedTime = DateTime.Now;

                   session.Save(not);

               not = new Notifications();
               not.Notes = applicationName;
               not.GeneratedTime = DateTime.Now;

                   // do what you need to do with the session
                   session.Save(not);
                   transaction.Commit();
               }

我的代码可以吗？是否与映射或nhibernate cfg有关？？？ 事先非常感谢

               Notifications not = new Notifications();
               not.Notes = applicationName;
               not.GeneratedTime = DateTime.Now;
               using (var session = SessionManager.OpenSession())
               using (var transaction = session.BeginTransaction())
               {
                   // do what you need to do with the session
                   session.Save(not);

               not = new Notifications();
               not.Notes = applicationName;
               not.GeneratedTime = DateTime.Now;

                   session.Save(not);

               not = new Notifications();
               not.Notes = applicationName;
               not.GeneratedTime = DateTime.Now;

                   // do what you need to do with the session
                   session.Save(not);
                   transaction.Commit();
               }

---

您错误地认为，在一个事务中执行插入将防止在其他并发事务中执行插入

               Notifications not = new Notifications();
               not.Notes = applicationName;
               not.GeneratedTime = DateTime.Now;
               using (var session = SessionManager.OpenSession())
               using (var transaction = session.BeginTransaction())
               {
                   // do what you need to do with the session
                   session.Save(not);

               not = new Notifications();
               not.Notes = applicationName;
               not.GeneratedTime = DateTime.Now;

                   session.Save(not);

               not = new Notifications();
               not.Notes = applicationName;
               not.GeneratedTime = DateTime.Now;

                   // do what you need to do with the session
                   session.Save(not);
                   transaction.Commit();
               }

---

这是不正确的（除非您使用特定的事务隔离级别，以独占方式锁定整个表等等……但我们只能说这不是正确的）

关系数据库中的行没有“排序”。它们的存储顺序完全不相关。只需确保在检索数据时应用适当的

ORDER BY

。这可以通过使用时间戳列来实现，该列存储插入行的时间。非常感谢，这很有帮助。

               Notifications not = new Notifications();
               not.Notes = applicationName;
               not.GeneratedTime = DateTime.Now;
               using (var session = SessionManager.OpenSession())
               using (var transaction = session.BeginTransaction())
               {
                   // do what you need to do with the session
                   session.Save(not);

               not = new Notifications();
               not.Notes = applicationName;
               not.GeneratedTime = DateTime.Now;

                   session.Save(not);

               not = new Notifications();
               not.Notes = applicationName;
               not.GeneratedTime = DateTime.Now;

                   // do what you need to do with the session
                   session.Save(not);
                   transaction.Commit();
               }