Microsoft SQL Server Development for Everyone - Table Triggers

The video tutorial explains how to create and use triggers in SQL Server 2017. It covers the process of setting up a trigger on a students table to automatically enroll students in a course upon insertion. The tutorial also demonstrates how to execute and test the trigger, and discusses practical use cases and considerations for using triggers, such as auditing and performance impacts.

What is a trigger in SQL Server 2017?

• A manual process to update records

• A procedure that runs automatically when an event occurs

• A tool for data visualization

• A method to backup databases

What is the purpose of the trigger created on the students table?

• To delete students automatically

• To update student grades

• To automatically enroll students in a course

• To send notifications to students

Which table is accessed to get the ID of a newly inserted student?

• Enrolled

• Updated

• Deleted

• Inserted

What happens when a new student is inserted into the students table?

• A new course is created

• The student's grade is updated

• The student's record is deleted

• The student's enrollment is automatically added

What is a practical use case for triggers mentioned in the video?

• Creating new databases

• Auditing changes in the database

• Generating reports

• Designing user interfaces

Why are triggers considered resource-intensive?

• They are difficult to code

• They need constant monitoring

• They can slow down database operations

• They require manual execution

What is the purpose of the second trigger example?

• To backup student data

• To update student grades

• To remove all enrollments of a deleted student

• To add new courses

What is the effect of setting a cascading delete on a foreign key relationship?

• It deletes all related records

• It creates new records

• It updates related records

• It prevents any deletions

What must be modified to support the trigger for deleting student records?

• The server settings

• The user permissions

• The foreign key constraints

• The database schema

What is the role of the 'deleted' table in the second trigger example?

• To hold data of deleted records

• To track updated records

• To manage course enrollments

• To store new student records