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.
How can you modify an existing trigger in MySQL?
2.
Which statement is true about MySQL triggers?
3.
What is the purpose of the SIGNAL SQLSTATE statement inside a trigger?
4.
Which of the following statements best describes an AFTER DELETE trigger?
5.
Which of the following best describes the relationship between triggers and transactions?
6.
What is a common use case for a BEFORE INSERT trigger?
7.
What happens if a trigger causes an error during execution?
8.
How many triggers can be created per table per event in MySQL?
9.
Which SQL statement is used to remove a trigger?
10.
Which statement is used to create a trigger in MySQL?
11.
Which statement is NOT allowed inside a MySQL trigger?
12.
How can you view all triggers in a database?
13.
Which of the following limitations apply to MySQL triggers?
14.
Which events can activate a MySQL trigger?
16.
What clause determines whether a trigger executes before or after an event?
17.
Which of the following is a valid use case for a MySQL trigger?
18.
Which keyword is used to reference the new row values in a trigger?
19.
Which keyword is used to reference the old row values in a trigger?
