---

The STUDENT_GRADES table has these columns: STUDENT_ID NUMBER(12) SEMESTER_END DATE GPA NUMBER(4,3) Which statement finds the highest grade point average (GPA) per semester?（）
A:SELECT MAX(gpa) FROM student_grades WHERE gpa IS NOT NULL;
B:SELECT (gpa) FROM student_grades GROUP BY semester_end WHERE gpa IS NOT NULL;
C:SELECT MAX(gpa) FROM student_grades WHERE gpa IS NOT NULL GROUP BY semester_end;
D:SELECT MAX(gpa) GROUP BY semester_end WHERE gpa IS NOT NULL FROM student_grades;
E:SELECT MAX(gpa) FROM student_grades GROUP BY semester_end WHERE gpa IS NOT NULL;

---

出自：Oracle认证

显示答案