This advanced SQL exercise is part of the book: Advanced SQL – Practical Techniques and Use-Cases, which includes 100 day-to-day SQL challenges (and solutions), need-to-know advanced features, and key concepts.
Given the following students table. You can see that each row specifies the student’s first name, last name, and class.
CREATE TABLE students (first_name varchar(25), last_name varchar(25), class varchar(25)) GO