单项选择题
A.START
B.RELOAD
C.RESTART
D.REFRESH
E.START L1
F.RELOAD L1
G.RESTART L1
H.REFRESH L1
单项选择题 You executed the following command in the lsnrctl utility to stop the listener: lsnrctl> STOP L1 What is the effect of this command if L1 is the only listener configured for your database?()
单项选择题 You have a production instance running on your server. UNDO_RETENTION is not long enough to satisfy read-consistency requirements. How do you change the UNDO_RETENTION value?()
多项选择题 Inwhichtwocaseswouldyouperformonlyconsistentbackup?()