Can you explain what triggers are in databases and how they work?

Database triggers are special procedures that automatically execute in response to certain events (such as insert, update, or delete) on a table.

How they work:

• A trigger is attached to a table and an event (INSERT, UPDATE, DELETE).
• When the event occurs, the trigger fires.
• Inside the trigger, additional operations can be performed: data validation, modifying other tables, logging, etc.

Example: When a new order record is added, a trigger can automatically update the order count or verify data correctness.

Triggers help automate business logic at the database level and ensure data integrity.