Question: database query the schema: student(sid, studentName, gpa) dept(deptName, numPhDs) prof(profName, deptName) course(cno, courseName, deptName) major(deptName, sid) section(deptName, cno, sectno, profName) enroll(sid, grade, deptName, cno, sectno)

database query

the schema:

student(sid, studentName, gpa)

dept(deptName, numPhDs)

prof(profName, deptName)

course(cno, courseName, deptName)

major(deptName, sid)

section(deptName, cno, sectno, profName)

enroll(sid, grade, deptName, cno, sectno)

Question:For each department that has four or more students as majors in that department, find the name of the department and the average GPA of its majors.

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