You plan to move data from a flat file to a table in your database. You decide to use SQL*Loader directpath load method to perform this task. The table in which you plan to load data is an important tablehaving various integrity constraints defined on it. 
Which constraints will remain enabled by default during this operation（）

单项选择题You are using flat files as the data source for one of your data warehousing applications. To optimizethe application performance， you plan to move the data from the flat files toclustered tablesin an Oracle database.  While migrating the data， you want to have minimal impact on the database performance and optimize thedata load operation. Which method would you use to load data into the Oracle database（）

A.Use the external table population.
B.Use the Oracle Data Pump export and import utility.
C.Use the conventional path data load of the SQL*Loader utility.
D.Use the INSERT INTO...SELECT command to load the data.

单项选择题You executed the following commands in an RMAN session for your database instance that has failures：  RMAN> LIST FAILURE；  After some time， you executed the following command in the same session： RMAN> ADVISE FAILURE；  But there are new failures recorded in the Automatic Diagnostic Repository （ADR） after the execution ofthe last LIST FAILURE command.  Which statement is true for the above ADVISE FAILURE command in this scenario（）

A.It produces a warning for new failures before advising for CRITICAL and HIGH failures.
B.It ignores new failures and considers the failures listed in the last LIST FAILURE command only.
C.It produces advice only for new failures and the failures listed in the last LIST FAILURE command are ignored
D.It produces an error with recommendation to run the LIST FAILURE command before the ADVISE FAILURE command.

单项选择题View the Exhibit to examine the error that occurred during the database startup. You opened an RMAN session for the database. To repair the failure， you executed the followingcommand as the first RMAN command：  RMAN>REPAIR FAILURE；  Which statement describes the consequence of this command（）

A.The command performs the recovery and closes the failure.
B.The command only displays the advice and the RMAN script required for recovery.
C.The command executes the RMAN script to repair the failure and remove the entry from the Automatic Diagnostic Repository （ADR）.
D.The command produces an error because the ADVISE FAILURE command was not executed beforethe REPAIR FAILURE command.

多项选择题WhichtwoactivitiesareNOTsupportedbytheDataRecoveryAdvisor（DRA）（）

A.Recover from failures in the RAC environment.
B.Diagnose and repair a data file corruption online.
C.Diagnose and repair a data file corruption offline.
D.Diagnose and repair failures on a standby database

多项选择题WhichtwokindsoffailuresmaketheDataRecoveryAdvisor（DRA）generateamanualchecklist（）

A.failure when no standby database is configured
B.failure because a data file is renamed accidentally
C.failure that requires no archive logs to be applied for recovery
D.failure due to loss of connectivity-for example， an unplugged disk cable