Triggers in MySQL automatically execute SQL code in response to specific table events, such as INSERT, UPDATE, or DELETE operations. They help enforce business rules, maintain audit logs, and automate data modifications. This quiz will test your understanding of MySQL triggers, including their syntax, use cases, and best practices. Get ready to assess your knowledge of how triggers work and how to implement them effectively!
1.
Which of the following statements best describes an AFTER DELETE trigger?
2.
Which statement is used to create a trigger in MySQL?
3.
What is the purpose of the SIGNAL SQLSTATE statement inside a trigger?
4.
Which SQL statement is used to remove a trigger?
5.
What clause determines whether a trigger executes before or after an event?
6.
Which of the following limitations apply to MySQL triggers?
7.
How many triggers can be created per table per event in MySQL?
8.
Which keyword is used to reference the new row values in a trigger?
9.
Which events can activate a MySQL trigger?
10.
Which of the following is a valid use case for a MySQL trigger?
11.
How can you modify an existing trigger in MySQL?
12.
What is a common use case for a BEFORE INSERT trigger?
13.
Which statement is true about MySQL triggers?
14.
Which keyword is used to reference the old row values in a trigger?
15.
What happens if a trigger causes an error during execution?
16.
Which of the following best describes the relationship between triggers and transactions?
17.
How can you view all triggers in a database?
19.
Which statement is NOT allowed inside a MySQL trigger?
