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单项选择题

You issued the following statement：  
SQL>ALTER DATABASE ENABLE RESUMABLE TIMEOUT n；  
What will be the result of issuing the above statement？（）

A.The command will not execute successfully because TIMEOUT is an invalid clause with the ALTER DATABASE ENABLE RESUMABLE command.
B. The command will not execute successfully because resumable space allocation is enabled at the session level.
C. The command will execute successfully and resumable space will be allocated at the session level.
D. The command will execute successfully and resumable space will be allocated at the instance level.

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单项选择题YouareaDBAofyourcompany.YoucreatedadatabasenamedSALESonanOracle10ginstance.YouhavedefinedanindexnamedINDEX1onthedatabasetablenamedINVENTORY.UsersarecomplainingthatqueriesaccessingtheINVENTORYtablearerunningslow.UponinvestigationyoudeterminethatthetablespacewheretheindexislocatedisexperiencinghighI Oandyoudecidetorelocatetheindextoanothertablespace.Whichofthesewillbethebestwaytoaccomplishthisobjective？（）

A. Rebuild the index.
B. Coalesce the index.
C. Drop and re-create the index in the new tablespace.
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A. when you want the data to be returned automatically in chronological order
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C. if the queries against the clustered table use the equality operator （=） to retrieve the desired row
D. if the full table scan is executed often on only one of the clustered tables

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A. V$LOG
B. V$LOGFILE
C. DBA_LOG_GROUPS
D. V$LOG_HISTORY

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A. journal table
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单项选择题Youarecreatingajobclass.Youwantaccesstothedetailedinformationforalltherunsofeachjobintheclassandeveryoperationperformedoneveryjobintheclass.WhichsettingwillyouusefortheLOGGING_LEVELparameter？（）

A. LOGGING_OFF
B. LOGGING_RUNS
C. LOGGING_FULL
D. LOGGING_NULL