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This article mainly introduces what is mysql trigger. I hope I can supplement and update some knowledge for you. If you have any other questions you need to know, you can continue to follow my updated article in the industry information.

A trigger is a special stored procedure, which needs to be called manually, while the trigger starts automatically by the program, such as executing the trigger before deleting a table. It can be set to be performed before or after the add and delete operation.

Simply put, something happens to a table (insert, delete, update), and then automatically triggers the execution of several pre-written SQL statements

Characteristics and functions of mysql trigger

Features: the operation that triggers the event and the SQL statement in the trigger is a transaction operation, which is atomic and either executes all or none of them

Function: to ensure the integrity of the data and play the role of constraint

These are the details of what mysql trigger means, please pay attention to other related articles!

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