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NEW QUESTION: 1
Which database feature can be used for organizing data when there is a very large amount of data?
A. Row-level security
B. Triggers
C. Index
D. Partitioning
E. Database vault
Answer: D
Explanation:
Reference: http://docs.oracle.com/cd/B28359_01/server.111/b28318/intro.htm#CNCPT999 (see very large databases)

NEW QUESTION: 2
Overview
General Overview
ADatum Corporation has offices in Miami and Montreal.
The network contains a single Active Directory forest named adatum.com. The offices connect to each other by using a WAN link that has 5-ms latency. A Datum standardizes its database platform by using SQL Server 2014 Enterprise edition.
Databases
Each office contains databases named Sales, Inventory, Customers, Products, Personnel, and Dev.
Servers and databases are managed by a team of database administrators. Currently, all of the database administrators have the same level of permissions on all of the servers and all of the databases.
The Customers database contains two tables named Customers and Classifications.
The following graphic shows the relevant portions of the tables:

The following table shows the current data in the Classifications table:

The Inventory database is updated frequently.
The database is often used for reporting.
A full backup of the database currently takes three hours to complete.
Stored Procedures
A stored procedure named USP_1 generates millions of rows of data for multiple reports. USP_1 combines data from five different tables from the Sales and Customers databases in a table named Table1.
After Table1 is created, the reporting process reads data from Table1 sequentially several times. After the process is complete, Table1 is deleted.
A stored procedure named USP_2 is used to generate a product list. The product list contains the names of products grouped by category.
USP_2 takes several minutes to run due to locks on the tables the procedure accesses. The locks are caused by USP_1 and USP_3.
A stored procedure named USP_3 is used to update prices. USP_3 is composed of several UPDATE statements called in sequence from within a transaction.
Currently, if one of the UPDATE statements fails, the stored procedure fails. A stored procedure named USP_4 calls stored procedures in the Sales, Customers, and Inventory databases.
The nested stored procedures read tables from the Sales, Customers, and Inventory databases. USP_4 uses an EXECUTE AS clause.
All nested stored procedures handle errors by using structured exception handling. A stored procedure named USP_5 calls several stored procedures in the same database. Security checks are performed each time USP_5 calls a stored procedure.
You suspect that the security checks are slowing down the performance of USP_5. All stored procedures accessed by user applications call nested stored procedures.
The nested stored procedures are never called directly.
Design Requirements
Data Recovery
You must be able to recover data from the Inventory database if a storage failure occurs. You have a Recovery Time Objective (RTO) of 5 minutes.
You must be able to recover data from the Dev database if data is lost accidentally. You have a Recovery Point Objective (RPO) of one day.
Classification Changes
You plan to change the way customers are classified. The new classifications will have four levels based on the number of orders. Classifications may be removed or added in the future. Management requests that historical data be maintained for the previous classifications. Security A group of junior database administrators must be able to manage security for the Sales database. The junior database administrators will not have any other administrative rights. A Datum wants to track which users run each stored procedure.
Storage
ADatum has limited storage. Whenever possible, all storage space should be minimized for all databases and all backups.
Error Handling
There is currently no error handling code in any stored procedure.
You plan to log errors in called stored procedures and nested stored procedures. Nested stored procedures are never called directly.
You need to recommend a solution for the error handling of USP_4.
The solution must handle errors for nested stored procedures in the code for USP_4.
What should you recommend?
A. Use the @@ERROR variable in USP_4.
B. Use the RAISERROR command in USP_4.
C. Use the @@ERROR variable in the nested stored procedures.
D. Use the RAISERROR command in the nested stored procedures.
Answer: D
Explanation:
Explanation/Reference:
Explanation:
- A stored procedure named USP_4 calls stored procedures in the Sales, Customers, and Inventory databases.
The nested stored procedures read tables from the Sales, Customers, and Inventory databases. USP_4 uses an EXECUTE AS clause.

NEW QUESTION: 3
You want to connect to your Salesforce.com database for reporting. Which server will authenticate you?
A. Windows Active Directory
B. Salesforce.com
C. BusinessObjects Enterprise XI
D. crystalreports.com
Answer: B

NEW QUESTION: 4
Your production database is functional on the SHOST1 host. You are backing up the production database by using Recovery Manager (RMAN) with the recovery catalog. You want to replicate the production database to anther host, SHOST2, for testing new applications.
After you ensured that the backups of the target database are accessible on the new host, what must you do to restore and recover the backup for the test environment?
A. Restoring the data files from the backup by using the recovery catalog to recover the files, and using the SWITCH command to change the location.
B. Restoring the control file from the backup by using the NOCATALOG option to restore, and recovering the data files
C. Restoring the server parameter file from the backup by using the recovery catalog to restore,
D. Restoring the data files by using the NOCATALOG option and using the SET NEWNAME command to change the location
Answer: B
Explanation:
Refer to here:
To restore the database on a new host:
1.Ensure that the backups of the target database are accessible on the new host.
2.Configure the ORACLE_SID on hostb.
3.Start RMAN on hostb and connect to the target database without connecting to the
recovery catalog.
For example, enter the following command:
% rman NOCATALOG
RMAN> CONNECT TARGET
/
4.Set the DBID and start the database instance without mounting the database.
For example, run SET DBID to set the DBID, then run STARTUP NOMOUNT:
SET DBID 1340752057;
STARTUP NOMOUNT
RMAN fails to find the server parameter file, which has not yet been restored, but starts the
instance with a "dummy" file. Sample output follows:
startup failed: ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file '/net/hostb/oracle/dbs/inittrgta.ora'
trying to start the Oracle instance without parameter files ...
Oracle instance started
5.Restore and edit the server parameter file.
Allocate a channel to the media manager, then restore the server parameter file as a client-
side parameter file and use the SET command to indicate the location of the autobackup
(in this example, the autobackup is in /tmp):
RUN
{
ALLOCATE CHANNEL c1 DEVICE TYPE sbt PARMS '...';
SET CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/tmp/%F';
RESTORE SPFILE
TO PFILE '?/oradata/test/inittrgta.ora'
FROM AUTOBACKUP;
SHUTDOWN ABORT;
}
6.Edit the restored initialization parameter file.
Change any location-specific parameters, for example, those ending in _DEST, to reflect
the new directory structure. For example, edit the following parameters:
-IFILE
-LOG_ARCHIVE_DEST_1
-CONTROL_FILES
7.Restart the instance with the edited initialization parameter file.
For example, enter the following command:
STARTUP FORCE NOMOUNT PFILE='?/oradata/test/inittrgta.ora';
8.Restore the control file from an autobackup and then mount the database. For example, enter the following command:
RUN
{
ALLOCATE CHANNEL c1 DEVICE TYPE sbt PARMS '...';
RESTORE CONTROLFILE FROM AUTOBACKUP;
ALTER DATABASE MOUNT;
}
RMAN restores the control file to whatever locations you specified in the CONTROL_FILES
initialization parameter.
9.Catalog the data file copies that you copied in "Restoring Disk Backups to a New Host",
using their new file names or CATALOG START WITH (if you know all the files are in
directories with a common prefix easily addressed with a CATALOG START WITH
command). For example, run:
CATALOG START WITH '/oracle/oradata/trgt/';
If you want to specify files individually, then you can execute a CATALOG command as
follows:
CATALOG DATAFILECOPY
'/oracle/oradata/trgt/system01.dbf', '/oracle/oradata/trgt/undotbs01.dbf',
'/oracle/oradata/trgt/cwmlite01.dbf', '/oracle/oradata/trgt/drsys01.dbf',
'/oracle/oradata/trgt/example01.dbf', '/oracle/oradata/trgt/indx01.dbf',
'/oracle/oradata/trgt/tools01.dbf', '/oracle/oradata/trgt/users01.dbf';
10.
Start a SQL*Plus session on the new database and query the database file names recorded in the control file. Because the control file is from the trgta database, the recorded file names use the original hosta file names. You can query V$ views to obtain this information. Run the following query in SQL*Plus:
COLUMN NAME FORMAT a60 SPOOL LOG '/tmp/db_filenames.out' SELECT FILE# AS "File/Grp#", NAME FROM V$DATAFILE UNION SELECT GROUP#,MEMBER FROM V$LOGFILE; SPOOL OFF EXIT
11.
Write the RMAN restore and recovery script. The script must include the following steps:
a.For each data file on the destination host that is restored to a different path than it had on the source host, use a SET NEWNAME command to specify the new path on the destination host. If the file systems on the destination system are set up to have the same paths as the source host, then do not use SET NEWNAME for those files restored to the same path as on the source host.
b.For each online redo log that is to be created at a different location than it had on the source host, use SQL ALTER DATABASE RENAME FILE commands to specify the path
name on the destination host. If the file systems on the destination system are set up to have the same paths as the source host, then do not use ALTER DATABASE RENAME FILE for those files restored to the same path as on the source host.
c.Perform a SET UNTIL operation to limit recovery to the end of the archived redo logs.
The recovery stops with an error if no SET UNTIL command is specified.
d.Restore and recover the database.
e.Run the SWITCH DATAFILE ALL command so that the control file recognizes the new
path names as the official new names of the data files.
Example 20-3 shows the RMAN script reco_test.rman that can perform the restore and
recovery operation.
Example 20-3 Restoring a Database on a New Host:
RUN
{
# allocate a channel to the tape device
ALLOCATE CHANNEL c1 DEVICE TYPE sbt PARMS '...';
# rename the data files and online redo logs
SET NEWNAME FOR DATAFILE 1 TO '?/oradata/test/system01.dbf';
SET NEWNAME FOR DATAFILE 2 TO '?/oradata/test/undotbs01.dbf';
SET NEWNAME FOR DATAFILE 3 TO '?/oradata/test/cwmlite01.dbf';
SET NEWNAME FOR DATAFILE 4 TO '?/oradata/test/drsys01.dbf';
SET NEWNAME FOR DATAFILE 5 TO '?/oradata/test/example01.dbf';
SET NEWNAME FOR DATAFILE 6 TO '?/oradata/test/indx01.dbf';
SET NEWNAME FOR DATAFILE 7 TO '?/oradata/test/tools01.dbf';
SET NEWNAME FOR DATAFILE 8 TO '?/oradata/test/users01.dbf';
SQL "ALTER DATABASE RENAME FILE ''/dev3/oracle/dbs/redo01.log''
TO ''?/oradata/test/redo01.log'' ";
SQL "ALTER DATABASE RENAME FILE ''/dev3/oracle/dbs/redo02.log''
TO ''?/oradata/test/redo02.log'' ";
# Do a SET UNTIL to prevent recovery of the online logs
SET UNTIL SCN 123456;
# restore the database and switch the data file names
RESTORE DATABASE;
SWITCH DATAFILE ALL;
# recover the database
RECOVER DATABASE;
}
EXIT
12.
Execute the script created in the previous step.
For example, start RMAN to connect to the target database and run the @ command:
% rman TARGET / NOCATALOG
RMAN> @reco_test.rman
13.
Open the restored database with the RESETLOGS option.
From the RMAN prompt, open the database with the RESETLOGS option:
ALTER DATABASE OPEN RESETLOGS;
Caution:
When you re-open your database in the next step, do not connect to the recovery catalog.
Otherwise, the new database incarnation created is registered automatically in the recovery
catalog, and the file names of the production database are replaced by the new file names
specified in the script.
14.
Optionally, delete the test database with all of its files.
Note:
If you used an ASM disk group, then the DROP DATABASE command is the only way to
safely remove the files of the test database. If you restored to non-ASM storage then you
can also use operating system commands to remove the database.
Use the DROP DATABASE command to delete all files associated with the database
automatically. The following example deletes the database files:
STARTUP FORCE NOMOUNT PFILE='?/oradata/test/inittrgta.ora';
DROP DATABASE;
Because you did not perform the restore and recovery operation when connected to the recovery catalog, the recovery catalog contains no records for any of the restored files or the procedures performed during the test. Likewise, the control file of the trgta database is completely unaffected by the test.