单项选择题
A.One tablespace has only one datafile
B.Many tablespaces can share one datafile
C.One tablespace can have many datafiles
D.One datafile can contain many tablespaces
单项选择题 Duringregulardatabaseoperation,whichbackgroundprocesswilltakesmallerblocksoffreespaceinadictionary-managedtablespaceandmovethingsaroundtomakebiggerpiecesoffreespace?（）
单项选择题 Youareconfiguringyourindextobestoredinatablespace.WhichofthefollowingstorageparametersareNOTappropriateforindexes?（）
单项选择题 ouareimplementingcontrolfilemultiplexing.WhichofthefollowingchoicesidentifiesthemethodyoucanuseinordertogeneratethecontrolfilecopiesthatOraclewillmaintain?（）