static void QuerySettings() { SettingsRepository settingsRepository = new SettingsRepository(connectionString, "settings"); var s = settingsRepository.Get(1); if (s == null) { settingsRepository.Create(new Setting() { SettingKey = "AesIV", SettingValue = "::\"bla'+" }); } s = settingsRepository.GetByKey("AesIV"); s.SettingValue += "upd."; settingsRepository.Update(s); }