Find the names and descriptions of courses that belong to the subject named "Computer Science".
create table courses (course_name varchar, course_description varchar, subject_id varchar, PRIMARY KEY (course_name)); create table subjects (subject_id varchar, subject_name varchar, PRIMARY KEY (subject_id))
select t1.course_name, t1.course_description from courses as t1 join subjects as t2 on t1.subject_id = t2.subject_id where t2.subject_name = "computer science"