CHAPTER 19
Triggers
This chapter presents recipes for creating and using Data Manipulation Language (DML) and Data Definition Language (DDL) triggers. DML triggers respond to INSERT, UPDATE, and DELETE operations against tables and views. DDL triggers respond to server and database events such as CREATE TABLE and DROP TABLE statements.
Triggers, when used properly, can provide a convenient automatic response to specific actions. They are appropriate for situations where you must create a business-level response to an action. However, they should not be used in place of constraints such as primary key, foreign key, and check and ...
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