Examine the command： SQL> DBMS_STATS.SET_TABLE_PREFS（’SH’， ’CUSTOMERS’， ’PUBLISH’， ’false’）； Which statement describes the effect of the above command（）
第1题：
A. The statistics are stored in the pending statistics table in the data dictionary.
B. The statistics are treated as the current statistics by the optimizer for all sessions.
C. The statistics are treated as the current statistics by the optimizer for the current sessions only.
D. The statistics are temporary and used by the optimizer for all sessions until this session terminates.
第2题：
Youexecutedthefollowingcommands：SQL>ALTERSESSIONSETOPTIMIZER_USE_PENDING_STATISTICS=false；SQL>EXECUTEDBMS_STATS.SET_TABLE_PREFS（’SH’，’CUSTOMERS’，’PUBLISH’，’false’）；SQL>EXECUTEDBMS_STATS.GATHER_TABLE_STATS（’SH’，’CUSTOMERS’）；WhichstatementiscorrectregardingtheabovestatisticscollectionontheSH.CUSTOMERStableintheabovesession？（）
A.Thestatisticsarestoredinthependingstatisticstableinthedatadictionary.
B.Thestatisticsaretreatedasthecurrentstatisticsbytheoptimizerforallsessions.
C.Thestatisticsaretreatedasthecurrentstatisticsbytheoptimizerforthecurrentsessionsonly.
D.Thestatisticsaretemporaryandusedbytheoptimizerforallsessionsuntilthissessionterminates.
第3题：
A. Accept the recommended SQL profile.
B.Collect statistics for the related objects.
C. Run the Access Advisor for the SQL statement.
D. Run the Segment Advisor for recommendations.
第4题：
Which is the most accurate statement regarding the business requirements development service component in the prepare phase. Select exactly 1 answer（s） from the following：（）。
第5题：
A. show users
B. show connected
C. show subscribers
D. show ip subscribers
第6题：
A. It collects statistics into the pending area in the data dictionary
B. It creates a virtual hidden column in the CUSTOMERS_OBE table
C. It collects statistics with AUTO_SAMPLE_SIZE for ESTIMATE_PERCENT
D. It creates a histogram to hold skewed information about the data in the columns
第7题：
Examine the data from the ORDERS and CUSTOMERS table.Which SQL statement retrieves the order ID, customer ID, and order total for the orders that are placed on the same day that Martin places his orders?（）
A.
B.
C.
D.
第8题：
View the Exhibit to examine the error during the database startup.You open an RMAN session for the database instance. To repair the failure, you executed the following as the first command in the RMAN session:RMAN> REPAIR FAILURE;Which statement describes the consequence of the command?（）
A. The command performs the recovery and closes the failures.
B. The command only displays the advice and the RMAN script required for repair.
C. The command produces an error because the ADVISE FAILURE command has not been executed before the REPAIR FAILURE command.
D. The command executes the RMAN script to repair the failure and removes the entry from the Automatic Diagnostic Repository (ADR).
第9题：
A.AutomaticstatisticscollectionisstoppedfortheCUSTOMERStable.
B.StatisticsfortheCUSTOMERStablearelockedandcannotbeoverwritten.
C.ExistingstatisticsfortheCUSTOMERStablebecomeunusableforthequeryoptimizer.
D.Subsequently，statisticsgatheredontheCUSTOMERStablearestoredaspendingstatistics
第10题：
You design a Business Intelligence （BI） solution by using SQL Server 2008. You create a SQL Server 2008 Integration Services （SSIS） package to perform an extract， transform， and load （ETL） process to load data to a DimCustomer dimension table that contains 1 million rows. Your data flow uses the following components： A SQL Destination data flow task to insert new customers An OLE DB Command transform that updates existing customers On average， 25 percent of existing customer records is updated each night. You need to reduce the amount of time required to update customer records. What should you do？（）