How can the database update data in real time?

Real-time updating of the database can be achieved through the following methods:

1. Using triggers in databases: Triggers can be set in a database to automatically perform specific operations when a certain event occurs. For example, a trigger can be activated when data in a table changes, allowing for real-time updates to be made.
2. Utilizing database schedules: You can set up scheduled tasks in the database to automatically perform certain actions, such as updating data at regular intervals.
3. By using a message queue, data update requests can be sent to the queue. The database can then listen to the message queue, receive new messages, and promptly carry out data update operations.
4. Utilize real-time data synchronization tools to ensure that data from one database is constantly synchronized to another, maintaining real-time consistency between the two databases.

Regardless of the method used, it is essential to ensure that the performance of the database system and network are sufficient to ensure timely completion of real-time data updates.