MySQL Data Change Monitoring Methods

MySQL itself does not directly provide the function of listening for data changes. However, data changes can be monitored in the following ways:

1. Creating triggers on a table allows for actions to be triggered when data is inserted, updated, or deleted. Triggers can be set to execute before or after data changes, and can be used for tasks such as logging changes or performing other operations.
2. Utilizing binlog (binary log): MySQL’s binlog is a type of log that records changes in the database, allowing the use of binlog parsing tools to read the binlog log and make corresponding adjustments based on the changes.
3. Utilizing third-party tools: Some third-party tools can assist in monitoring changes in MySQL data. For example, using tools like Maxwell and Debezium can capture changes in MySQL’s binlog in real-time and send the modified data to other systems for processing.

In conclusion, MySQL does not have a built-in feature to directly listen for data changes, but changes can be monitored through triggers, binlogs, or third-party tools. The choice of method depends on the specific needs and use cases.