Question
Given the following tables: students(sid,name,age,gpa) courses(cid,deptid, description) professors(ssn,name,address,phone,deptid) enrollment(sid,cid,section,grade). cid makes reference to the courses table. teaches(cid,section,ssn). cid, section makes reference to the enrollment table
Given the following tables:
students(sid,name,age,gpa)
courses(cid,deptid, description)
professors(ssn,name,address,phone,deptid)
enrollment(sid,cid,section,grade). cid makes reference to the courses table.
teaches(cid,section,ssn). cid, section makes reference to the enrollment table
Provide SQL instructions for each of the following questions
12. On average what percentage of students fail a course? (total number of students that failed a course / total number of enrolled students).
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Introduction To Data Mining
Authors: Pang Ning Tan, Michael Steinbach, Vipin Kumar
1st Edition
321321367, 978-0321321367
