假设用户正在执行UPDATE操作,此时用以下哪种方法可以关闭数据库()
A:SHUTDOWN或SHUTDOWN IMMEDIATE或SHUTDOWN ABORT
B:SHUTDOWN或SHUTDOWN NORMAL或SHUTDOWN TRANSACTIONAL
C:SHUTDOWN NORMAL或SHUTDOWN ABORT或SHUTDOWN IMMEDIATE
D:SHUTDOWN或SHUTDOWN IMMEDIATE或SHUTDOWN TRANSACTIONAL
E:SHUTDOWN ABORT或SHUTDOWN IMMEDIATE或SHUTDOWN TRANSACTIONAL
出自:Oracle认证