Solution

In database management, a trigger is a set of instructions that are automatically executed, or "triggered," by the database management system (DBMS) in response to a specific change made to the database, such as an insert, update, or delete operation. Triggers can be used to enforce constraints, perform data validation, maintain database consistency, and implement complex business logic, among other things. They provide a way to automatically respond to changes in the database and ensure that the data remains consistent and accurate.