Which two are valid locking levels that are used by transactions in an Oracle database?()
A、row level
B、block level
C、object level
D、schema level
E、database level
A、row level
B、block level
C、object level
D、schema level
E、database level
A、Dual power supplies. B、Twice the amount of disk. C、Two dual-port LHEA adapters. D、Two dual-port fibre channel adapters.
A、 auto-channel selection B、 WMM QoS C、 802.11F roaming D、 multiple BSSIDs E、 802.1Q VLANs F、 AP detection