public override object GetParameterValue(DbCommand command, string parameterName) { if (command == null) { throw new ArgumentNullException(nameof(command)); } object obj = base.GetParameterValue(command, parameterName); ParameterTypeRegistry parameterTypeRegistry = this.GetParameterTypeRegistry(command.CommandText); if (parameterTypeRegistry != null && parameterTypeRegistry.HasRegisteredParameterType(parameterName)) { DbType registeredParameterType = parameterTypeRegistry.GetRegisteredParameterType(parameterName); if (DbType.Guid == registeredParameterType) { obj = OracleDatabase.ConvertByteArrayToGuid(obj); } else if (DbType.Boolean == registeredParameterType) { obj = (object)Convert.ToBoolean(obj, (IFormatProvider)CultureInfo.InvariantCulture); } } return(obj); }