By mistake， you ran the batch job （for updating the BILL_DETAILS table） twice. You are not sure which rows in the BILL_DETAILS table were affected. You need to identify：
a） A list of changes made along with the transaction identifier of each change.
b） The necessary SQL statements to undo the erroneous changes.
Which option would you choose？（）
A. RMAN only.
B. Flashback Table only.
C. Flashback Version Query only.
D. Flashback Database and Flashback Transaction Query.
E. Flashback Version Query and Flashback Transaction Query.
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A. The parallel degree limit for DB_GRP will be the minimum of all the incoming values.
B. The parallel degree limit for DB_GRP will be the maximum of all the incoming values.
C. The maximum estimated execution time for DB_GRP would be the most nonrestrictive of all incoming values.
D. If a session switched from the DB_GRP consumer group to another consumer group because it exceeded the prescribed switch time， then that session would not execute if the active session pool for the new consumer group was full.
E. Is a session switched from the DB_GRP consumer group to another consumer group because it exceeded the prescribed switch time， then that session would execute even if the active session pool for the new consumer group was full.
A. The redo log file should belong to an active group.
B. The redo log file should belong to an inactive group.
C. The redo log file should belong to the current group.
D. The redo log file can be dropped only if all the transactions are stopped.
E. Before a redo log file is dropped， it should be deleted from the operating system （OS）.
You are working in an online transaction processing （OLTP） environment. You used the FLASHBACK TABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command， the System Change Number （SCN） was 663571. After flashing back the CUSTOMERS table， you realize that the table is not in the correct state and the resultant changes are not what you had desired. So， you need to reverse the effects of the FLASHBACK TABLE command while ensuring that：
a） No other user data in the database is affected.
b） The operation takes the minimum possible time.
Which option would you choose？（）
A. Use ROLLBACK command with SCN 663571.
B. Perform Flashback Transaction Query with SCN 663571.
C. Execute the FLASHBACK DATABASE statement to retrieve the CUSTOMERS table as it was at SCN 663571.
D. Execute another FLASHBACK TABLE statement to retrieve the CUSTOMERS table as it was at SCN 663571.
A. Backup of offline tablespaces.
B. Backup of read-only tablespaces.
C. Backup of system-critical tablespaces.
D. Backup of online， locally managed tablespaces.
E. Backup of read/write dictionary-managed tablespaces.
A. Heap table
B. Object table
C. External table
D. Clustered table
E. Global temporary table
F. Index-organized table （IOT）
A. This instance is being used to manage the operating system files.
B. This instance is being used to manage the files of other databases.
C. This instance is being used to manage the instances of other databases.
D. This instance is being used to manage the background processes of other instances.
A. Recovery catalog
B. Oracle Enterprise Manager Repository
C. Automatic Workload Repository （AWR）
D. Oracle 10g Enterprise Manager Grid Control
E. Automatic Database Diagnostic Monitor （ADDM）
A. functions
B. package
C. procedure
D. database trigger
E. anonymous PL/SQL block
Exhibit： View the Exhibit.You have more than one table in the recycle bin having the same original name， DEPT2. You do not have any table with the nameDEPT2 in your schema. You executed the following command：PURGE TABLE dept2； Which statement is correct in this scenario？（）
A. All the tables having the same original name as DEPT2 will be purged from the recycle bin.
B. The table with dropscn = 1928151 （oldest dropscn） will be purged from the recycle bin.
C. The table with dropscn = 1937123 （most recent dropscn） will be purged from the recycle bin.
D. None of the tables will be purged because there are multiple entries with the same original name in the recycle bin.
While designing the database for one of your online transaction processing （OLTP） applications， you want to achieve the following：
a） high availability of data
b） faster primary key access to the table data
c） compact storage for the table
Which type of tables would you use to achieve these objectives？（）
A. heap tables
B. object tables
C. partitioned tables
D. index-organized tables （IOTs）
最新试题
Your database operates in ARCHIVELOG mode. The redo log files are not multiplexed and one of the online redo logs is missing. The missing redo log sequence， 230， is not archived， and it contained information from 10：35 a.m. onwards. The current time is 11：00 a.m. Because of a disk crash， you executed the following command to perform an incomplete recovery： RMAN> RUN { 2> SET UNTIL SEQUENCE 230 THREAD 1; 3> ALTER DATABASE MOUNT; 4> RESTORE DATABASE; 5> RECOVER DATABASE; 6> ALTER DATABASE OPEN RESETLOGS;7> }; With reference to this scenario， which statement is true？（）
On Tuesday， a junior DBA dropped an important application user account， whose schema has important tables. You are asked to recover all the objects in the schema. On investigation， you find that the user account was dropped at 11：00 a.m. and Sunday’s backup is the most recent backup. Which flashback feature would you use？（）
Your database operates in ARCHIVELOG mode. Usermanaged 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： ORA00942： 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？（）
You lost the index tablespace in your database. You decided to recreate the index tablespace and the indexes in the tablespace. What methods can you use to recreate the indexes？（）
You are connected to Recovery Manager （RMAN） without a recovery catalog. There is no copy of the control file available. You want to restore the control file from an autobackup. To retrieve the autobackup，you need the database ID （DBID）. In which two sources would you find the DBID？ （）
Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error， you decided to perform an incomplete recovery. Which two tasks would you be required to perform in the recovery process？ （）
You have a readonly tablespace on readonly media. You want to perform a media recovery on the existing data files， but using a backup control file. The backup control file indicates that the status of the readonly tablespace was read/write when the control file was backed up. What should you consider？（）
You configured the flash recovery area in the database. Which two files would you expect to find in the flash recovery area？ （）
You executed the following query in your database： FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output？（）
Consider the recovery steps in each of the cases given below： Case 1： Shut down the database and perform a backup. Restore all the data files. Mount the database. Recover the database. Without applying all the redo log files， open the database using the RESETLOGS option. Back up the database. Case 2： Shut down the database and perform a backup. Restore only the data files of the tablespace where user error damaged the data. Mount the database. Recover the database. Open the database with the RESETLOGS option. Back up the database. Case 3：Shut down the database Restore the data files Open the database Perform recovery to the current point in time. Which case has the correct steps for an incomplete recovery？（）