Write an SQL query that returns the bookid and title of books that are used as t

Question

Write an SQL query that returns the bookid and title of books that are used as textbooks for more than one course.

book bookid title Introduction of Algorithms rice total copies 84.66 Database System Concepts74.99 Stochastic Calculus for Financ41.02 Stochastic Calculus for Finance II 55.22 course title Algorithms DB Organization Advanced DB Organization Math Finance I Math Finance II faculty enroll studentid courseid student studentid facultyid name gpa Tom 3.3 John3.8 Mary 3.0 Kris 3.6 Alex3.5 James 70000 Sarah 60000 ay 80000 Rache 70000 Pau85000 book_ checkout bookid studentid 2017-08-29 2017-09-02 2017-09-07

Explanation / Answer

select b.bookid,b.title from book b,course c where b.bookid=c.textbookid group by c.textbookid having count(*)>1; (selecting bookid and title where count is more than 1)

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