单项选择题

In your test database， you find that a user’s session is executing a lot of SQL statements， resulting in the generation of a large number of trace files. While investigating the reason， you find that SQL trace has been enabled at the instance level.
You want to disable SQL trace， remotely， only for that user session to reduce the volume of trace data being generated.
How do you achieve this objective？（）

A.by setting the SQL_TRACE parameter to FALSE in the parameter file
B.by using DBMS_MONITOR.SESSION_TRACE_DISABLE to disable the tracing for the user session
C.by setting the SQL_TRACE parameter to FALSE by using the ALTER SYSTEM command in the user session
D.by setting the SQL_TRACE parameter to FALSE by using the ALTER SESSION command in the user session

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热门试题

单项选择题Theproductiondatabasehasbeenfunctionalforthelastsevendays.Becauseofapplicationrequirements，someoftheinitializationparameterswerechangedduringruntimewithoutanycomments.Youhavebeenaskedtofindoutthevalueoftheparameterswhentheinstancewasstarted.Whichsourcewouldyouusetolocatethisinformation？（）

A.fixed views
B.the alert log file
C.the parameter file
D.the server parameter file
E.dynamic performance views

单项选择题The backup retention policy is configured as RECOVERY WINDOW 2. You executed the following command in Recovery Manager （RMAN） against your database： RMAN> REPORT OBSOLETE What would you see in the output？（）

A.a list of all the expired backups and copies
B.a list of all those files that have been deleted in the last two days
C.a list of all those files that have been recovered within the last two days
D.a list of backups and copies that are outside the range covered by the current retention policy

多项选择题UsingtheLISTcommandinRecoveryManager（RMAN），whichtwopiecesofinformationfromtheRMANrepositorycanbelisted？（）

A.backups that can be deleted
B.stored scripts in the recovery catalog
C.backup sets and image copies that are obsolete
D.only the most recent backup sets or image copies
E.backups that do not have the AVAILABLE status in RMAN repository

单项选择题You executed the following command in Recovery Manager （RMAN） against your Oracle 10g database： RMAN> REPORT NEED BACKUP days 3 What would be the output of this command？（）

A.a list of files that require a backup within three days
B.a list of files that have not been backed up for three days
C.a list of files that RMAN recommends be backed up only once in every three days， based on low volatility
D.a list of files for which a backup has already been performed and may need a backup after three days

多项选择题WhenperformingabackupusingRecoveryManager（RMAN），whichfourtypesoffilescanbebackedupwiththeRMANBACKUPcommand？（）

A.data file
B.password file
C.archivelog file
D.temporary file
E.online redo log file
F.the current control file
G.the tnsnames.ora file
H.current server parameter file