---

Examine the description of the STUDENTS table: Which two aggregate functions are valid on the START_DATE column?（）
A:SUM(start_date)
B:AVG(start_date)
C:COUNT(start_date)
D:AVG(start_date, end_date)
E:MIN(start_date)
F:MAXIMUM(start_date)

---

出自：Oracle认证

显示答案