参考答案: A
详细解析:
正确答案AA. Select datetrunc(login_date,’dd’),count(*) from user_login group by datetrunc(login_date,’dd’)
B. select datetrunc(login_date,hh"), count(*) from user_login group by datetrunc login_date,’hh’);
C. Select datetrunc(login_date,’mm’),count(*) from user_login group by datetrunc(login_date,’mm’);
D. Select datetrunc(login_date,’yyyy’),count(*) from user_login group by datetrunc(login_date,’yyyy’)
参考答案: A
详细解析:
正确答案A