YourOracle10gdatabasecontainsatablewithaTIMESTAMPTOLOCALTIMEZONEcolumn.Thereareabouttwohundredcolumnvaluesforthecolumn.Youissuedthefollowingstatement：SQL>ALTERDATABASESETTIME_ZONE=’Europe/London’；Whatwillbetheresultofissuingtheabovestatement？（）A.Thestatem

YourOracle10gdatabasecontainsatablewithaTIMESTAMPTOLOCALTIMEZONEcolumn.Thereareabouttwohundredcolumnvaluesforthecolumn.Youissuedthefollowingstatement：SQL>ALTERDATABASESETTIME_ZONE=’Europe/London’；Whatwillbetheresultofissuingtheabovestatement？（）

A.Thestatementwillbeexecutedsuccessfully，andanewtimezonewillbesetforthedatabase.

B.Thestatementwillbeexecutedsuccessfully，butanewtimezonewillnotbesetforthedatabase.

C.ThestatementwillnotbeexecutedsuccessfullybecausetheSETTIME_ZONEclausecanbeusedonlywiththeALTERSESSIONstatement.

D.ThestatementwillnotbeexecutedsuccessfullybecausetheALTERDATABASESETTIME_ZONEstatementisusedonlywhenthedatabasecontainsnotablewiththeTIMESTAMPTOLOCALTIMEZONEcolumn.