与语句cout<<endl;不等价的是()。
A.cout<<‘’;
B.cout<<‘12’;
C.cout<<‘xA’;
D.cout<<‘’;
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View the Exhibit and examine the Flashback SCNs. A user has inserted wrong department data in the DEPT3 table in the USERS tablespace. You use the Flashback Table functionality to rectify the erroneous inserts. While performing the recovery, you chose 2004343 as the Flashback SCN. Which two statements are correct in this scenario?()
AOnly the row with DEPARTMENT_ID 290 would be flashed back.
BThe rows with DEPARTMENT_ID 290 and 300 would be flashed back.
CThe rows with DEPARTMENT_ID 290 and 280 would be flashed back.
DYou would have taken the USERS tablespace offline before starting the Flashback Table operation.
EYou would have enabled row movement for the DEPT3 table before starting the Flashback Table operation.
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Exhibit,View the Exhibit and examine the Resource Manager settings for the groups at different levels. Which two effects would be the result of this setting? ()
AThe members of LOW_GROUP would get more priority than those of OTHER_GROUPS.
BThe members of SYS_GROUP would get most of the CPU allocation at level 1.
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DThe members of LOW_GROUP would get no CPU allocation at level1 if the members of OTHER_GROUPS are using all the CPU at level 2.
EThe members of SYS_GROUP would get no CPU allocation at level 1 if the members of OTHER_GROUPS are using all the CPU at level 2.
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D、 RMAN would use the control file of the target database to maintain the backup metadata.
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