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In this video we will learn about triggers in sql serevr. There are 3 types of triggers
1. DML triggers
2. DDL triggers
3. Logon trigger
DML triggers are fired automatically in response to DML events (INSERT, UPDATE & DELETE). DML triggers can be again classified into 2 types
1. After triggers (Sometimes called as FOR triggers)
2. Instead of triggers.
After triggers, fires after the triggering action. The INSERT, UPDATE, and DELETE statements, causes an after trigger to fire after the respective statements complete execution. INSTEAD of triggers, fires instead of the triggering action. The INSERT, UPDATE, and DELETE statements, causes an INSTEAD OF trigger to fire INSTEAD OF the respective statement execution.