In a trigger, we first specify when the trigger is to be executed and then the action to be performed when the trigger executes. Triggers are used to specify certain integrity constraints and referential constraints that cannot be specified using the constraint mechanism of SQL. A trigger in SQL is a procedural code that is automatically executed in response to certain events on a specified table. It is important to understand how these small codes make such a huge difference in database performance. In this article, you will learn how to implement triggers along with examples. SQL triggers are powerful tools in database management that automate tasks in response to specific events. By understanding and implementing SQL triggers, you can ensure data integrity, automate repetitive tasks, and enhance overall database performance. Learn how to create and use SQL triggers, special stored procedures that execute in response to database events. See the syntax and an example of a trigger that logs changes to a table in SQL Server.
