Day 81 – Triggers
These are database objects that are automatically executed in response to specific events, such as an update or insert operation on a table. Triggers can be used to enforce data integrity constraints, audit data changes, or send notifications when certain events occur.
CREATE TRIGGER trUpdateCustomer
ON Customers
AFTER UPDATE
AS
BEGIN
-- Perform some action after a customer record is updated
END
In this example, a trigger named trUpdateCustomer is created to execute some action after a record in the Customers table is updated. The specific action would be defined within the BEGIN and END statements.