Automobile.Registrar.SQLiteClient.SetAvailibility C# (CSharp) Метод

        public void SetAvailibility(DeviceInfo device, bool availible)
        {
            var db = _sharedDb ?? new SQLiteConnection(_dbName).OpenAndReturn();

            using(SQLiteCommand availUpdate = new SQLiteCommand(db))
            {
                availUpdate.CommandText = string.Format("UPDATE DeviceInfo SET Availible = {0} WHERE UniqueId = '{1}'", availible ? 1 : 0, device.UniqueId);
                availUpdate.ExecuteNonQuery();
            }

            if (_sharedDb == null)
            {
                db.Close();
                GC.Collect();
            }
        }