You are maintaining the SALES database of a company. You have never backed up the USERS tablespace that is currently offline. On Sunday， you issued the following commands： CONFIGURE DEFAULT DEVICE TYPE TO sbt； CONFIGURE BACKUP OPTIMIZATION ON； CONFIGURE RETENTION POLICY TO REDUNDANCY 3； From Monday to Saturday， you performed the following actions： Day Action Monday BACKUP DATABASE Tuesday BACKUP DATABASE Wednesday BACKUP DATABASE Thursday BACKUP DATABASE Friday BACKUP DATABASE Saturday BACKUP DATABASE How many times will the backup of the USERS tablespace be performed？（） The backup will not be performed at all.。 three times。 four times。 six time。
某企业的预期年收益为30万元，该企业的各单项资产的评估值之和为90万元，企业所在的行业的平均收益率为20%，并以此作为使用的资产收益率，则据此评估商誉的价值为（）。 20。 30。 50。 60。
You want to perform a backup of your database to tape. Which backup format can you use？（） backup set only。 image copy only。 only user-managed backup。 both image copy and backup set。 only incremental image copy backu。
营养级
Your alert log file has the following information： Tue May 25 17：43：38 2004 ORA-00060： Deadlock detected. More info in file /u01/app/oracle/admin/ORCL/udump/orcl_ora_3173.trc. What would you do to ensure that database is still running correctly？（） examine the trace file and kill the session that caused the deadlock。 examine the trace file and kill both the sessions responsible for the deadlock。 examine the trace file for details and ask the user who caused the deadlock to roll back the transaction。 examine the trace file for details and remember that deadlocks are resolved automatically by Oracle database。 examine the trace file for details and use the Undo Advisor to rollback the transaction that caused the deadlock。
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