SQL Procedures, Triggers, and Functions on IBM DB2 for i

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Triggers

Triggers are a powerful part of IBM DB2 for i. They are not only useful to enforce complex business rules, but they are also important to track database activity.

This chapter includes the following topics:

•Trigger concepts

•Trigger types

•Introduction to triggers

•Defining triggers

•Trigger examples

•Additional trigger considerations

•Trigger-related catalogs

5.1 Trigger concepts

The concept of a trigger is relatively simple. A trigger ...

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