单项选择题
When you are performing media recover, and an archived log is lost or corrupt, which type of recover must you perform?()
A.Until SCN B.Until time C.Until cancel D.Recover using backup control file.
多项选择题 Whichtworolesorprivilegesmustyouhavetoexporttablesownedbyanotheruser?()
多项选择题 Inwhichthreecasesdoesacheckpointoccur?()
单项选择题 Whatistrueregardingdirect-loadinsert?()