data mode的用法和樣例：
例句
- This is useful when the client wants to display the status of data being received from the server.
這在客戶端需要顯示從伺服器接收到的數據狀態時很有用。 - Applications using query notifications do not have to periodically verify the state of the data in the database.
使用查詢通知的應用程序不必定期驗證資料庫中的數據狀態。
