单项选择题

Abitmapjoinindexisdefinedas（）.

A.Anindexusedtojointwobitmapindexesonatable.
B.Abitmapindexcreatedforthejoinoftwoormoretables.
C.Abitmapindexcreatedonthejoinoftwoormoreindexes.
D.Abitmapindexcreatedonthejoinoftwoormoreindexed-organizedtables.
<上一题 目录 下一题>
热门 试题

单项选择题
Toperformmanagementactivities，eachdomainrequiresitsown（）
A.AdministrationServer
B.ConfigurationWizard
C.AntTask
D.NodeServer
单项选择题
ViewtheExhibittoexaminetheoutputoftheDBA_OUTSTANDING_ALERTSview.After30minutes，youexecutedthefollowingcommand：SQL>SELECTreason，metric_valueFROMdba_outstanding_alerts；REASONMETRIC_VALUE------------------------------------------------------------------------Tablespace[TEST]is[28percent]full28.125Whatcouldbethereasonfortheeliminationoftheotherrowsintheoutput（）A.AnAutomaticWorkloadRepositorysnapshothasbeentakenrecently.B.Thenon-threshold-basedalertsaretransferredtoDBA_ALERT_HISTORY.C.ThethresholdalertsconditionsareclearedandthealertsaretransferredtoDBA_ALERT_HISTORY.D.ThethresholdalertsrelatedtodatabasemetricsarepermanentlystoredinDBA_ALERT_HISTORYbutnotthethresholdalertsrelatedtoinstancemetrics.
A.After30minutes，youexecutedthefollowingcommand：SQL>SELECTreason，metric_valueFROMdba_outstanding_alerts；REASONMETRIC_VALUE------------------------------------------------------------------------Tablespace[TEST]is[28percent]full28.125Whatcouldbethereasonfortheeliminationoftheotherrowsintheoutput（）
A.AnAutomaticWorkloadRepositorysnapshothasbeentakenrecently.
B.Thenon-threshold-basedalertsaretransferredtoDBA_ALERT_HISTORY.
C.ThethresholdalertsconditionsareclearedandthealertsaretransferredtoDBA_ALERT_HISTORY.
D.ThethresholdalertsrelatedtodatabasemetricsarepermanentlystoredinDBA_ALERT_HISTORYbutnotthethresholdalertsrelatedtoinstancemetrics.
相关试题