单项选择题
You are designing an application for Certkiller .com and you have been asked to design a database table to facilitate monthly bill generation. The bill would include details of customer calls， listed in chronological order.Which method would you follow to achieve this objective without increasing the overhead of sorting the rows？（）
A. create a hash cluster to store the data
B. create an index cluster to store the data
C. create a partitioned table to store the data
D. create a sorted hash cluster to store the data
E. create a heap table with rowid to store the data
相关考题
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单项选择题
WhilecreatingajobclassusingtheDBMS_SCHEDULERpackage，yousettheloggingleveltoLOGGING_RUNS.Whatwouldbetheimpactofthissetting？（）
A. Oracle Scheduler would write detailed information to the job log for each run of each job in the job class.
B. Oracle Scheduler would write detailed information to the job log for the first run of each job in the job class.
C. Oracle Scheduler would write detailed information to the job log for each run of only the first job in the job class.
D. Oracle Scheduler would write detailed information for all operations performed on all jobs in the job class. -
单项选择题
You performed an incomplete recovery on your Oracle Database 10g database using the following command： SQL> RECOVER DATABASE 2 UNTIL TIME ’2004-08-05：12：10：03’ 3 USING BACKUP CONTROLFILE； In which situation would the above recovery be required？（）
A. A user table was lost at the specified time.
B. A redo log file was lost at the specified time.
C. The backup control file is on a faster disk than the current one.
D. The current control file has a different path compared with the intended time of recovery.
E. The current control file does not match the physical structure of the database at the intended time of recovery. -
单项选择题
Your database operates in ARCHIVELOG mode. User-managed consistent backups are performed every Sunday night. On Tuesday， client A drops a table at 8：00 a.m. as follows： SQL> DROP TABLE cust_ord PURGE； Table dropped. Client B executes a query at 9：00 a.m. on the same table as follows： SQL> SELECT * FROM cust_ord； SELECT * FROM cust_ord *ERROR at line 1：ORA-00942： table or view does not exist Client B needs the dropped table and reports the problem to you.With reference to this scenario， which action should you take？（）
A. retrieve the table by using the flashback feature
B. restore all the data files from last Sunday’s backup and then perform a time-based recovery
C. restore all the data files from last Sunday’s backup and then perform a log sequence recovery
D. restore all the data files from last Sunday’s backup and then perform a cancel-based recovery
E. restore from last Sunday’s backup only data files that belong to the tablespace in which the table was stored and then perform a complete recovery
