human
Schema:
Student (StuID, LName, Fname, Age, Sex, Major, Advisor, city_code)
Faculty (FacID, Lname, Fname, Rank, Sex, Phone, Room, Building)
Department (DNO, Division, DName, Room, Building, DPhone)
Member_of (FacID, DNO, Appt_Type)
Course (CID, CName, Credits, Instructor, Days, Hours, DNO)
Minor_in (StuID, DNO)
Enrolled_in (StuID, CID, Grade)
Gradeconversion (lettergrade, gradepoint)
Please answer with SQL.
assistant
Sure, I understand.
human
What is the average gradepoint for any students enrolled in courses?
assistant
SELECT AVG ( T2.gradepoint ) FROM ENROLLED_IN AS T1 JOIN GRADECONVERSION AS T2 JOIN STUDENT AS T3 ON T1.Grade = T2.lettergrade AND T1.StuID = T3.StuID;
human
What is this for students with last name Smith?
assistant
SELECT AVG ( T2.gradepoint ) FROM ENROLLED_IN AS T1 JOIN GRADECONVERSION AS T2 JOIN STUDENT AS T3 ON T1.Grade = T2.lettergrade AND T1.StuID = T3.StuID WHERE T3.LName = "Smith" ;