Final answer:
SQL triggers are created using the SQL CREATE TRIGGER statement and are a set of SQL commands executed automatically in response to specific events on a table.
Step-by-step explanation:
SQL triggers are created using the SQL CREATE TRIGGER statement. When a trigger is made, it is set to execute a batch of SQL code automatically in response to certain events on a table such as INSERT, UPDATE, or DELETE actions. To define a trigger, one would provide the name of the trigger, the triggering event, and the table on which the trigger should operate, along with the actual SQL commands that should be executed when the event occurs.