[问答题] 偏航系统的特点

The current time is 12：00 noon. You want to recover the USERS tablespace from a failure that occurred at 11：50 a.m. You discover that the only member of an unarchived redo log group containing information from 11：40 a.m. onwards is corrupt.  With reference to this scenario， if you are not using Recovery Manager （RMAN）， which recovery method would you use？（） ["time­based recovery","log sequence recovery","cancel­based recovery","change­based recovery"] 发酵微 What are the recommendations for Oracle Database 11g installation to make it Optimal Flexible Architecture (OFA)-compliant? （） [" ORACLE_BASE should be set explicitly."," An Oracle base should have only one Oracle home created in it."," Flash recovery area and data file location should be on separate disks."," Flash recovery area and data file location should be created under Oracle base in a non-Automatic Storage Management (ASM) setup."] （）减压蒸馏降低了分馏塔的压力，使汽化段的真空度提高，在相同的汽化段温度下，拔出率有所提高。同时，降低了装置能耗。 ["湿式","半湿式","干式"] Which type of backup backs up only data blocks modified since the most recent backup at the same level or lower？（）   [" Differential incremental backup"," Different incremental backup"," Cumulative backup"," Cumulative incremental backu"] 偏航系统的特点