水利工程建设监理单位应当聘用不具有相应资格的监理人员从事水利工程建设监理业务。
Which three types of files can be automatically placed in the flash recovery area (fast recovery area in 11g Release 2)?() (Choose three.) Alert log file。 Archived redo log files。 Control file autobackups。 Server Parameter file (SPFILE)。 Recovery Manager (RMAN) backup piece。
Which statements are true regarding SecureFile LOBs?() The amount of undo retained is user controlled.。 SecureFile LOBs can be used only for nonpartitioned tables.。 Fragmentation is minimized by using variable-sized chunks dynamically.。 SecureFile encryption allows for random reads and writes of the encrypted data.。 It automatically detects duplicate LOB data and conserves space by storing only one copy.。
Which view provides information on the backup status of the datafiles in the database?() V$BACKUP。 V$BACKUP_STATUS 。 V$BACKUP_DATAFILE 。 V$DATAFILE_BACKUP 。 V$TABLESPCE_BACKUP。
设计轴的直径是首先按()初定轴的直径。
地方政府的职能有()。