“O que se entende por gatilho no DBMS” Respostas de código

O que se entende por gatilho no DBMS

Trigger
A trigger is a set of actions that are run automatically when 
a specified change operation (SQL INSERT, UPDATE, or DELETE statement) 
is performed on a specified table. 
Triggers are useful for tasks such as enforcing business rules, 
validating input data, and keeping an audit trail.