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.
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.
相关考题:
You are the administrator of several SQL Server 2000 computers. A data Transformation Services (DTS) package uses native OLE DB providers to transfer data between the servers. Connection details for the servers are specified in .udl files. The .udl files are frequently updated as connection details change.You want to distribute the DTS package as a file to developers in your company. You want to make sure connection details are available to developers who receive the DTS package.Which two tasks should you perform? (Each correct answer presents part of the solution. Choose two)A.Enable the Always read properties from UDL file option in the Connection Properties dialog box.B.Disable the Always read properties from UDL file option in the Connection Properties dialog box.C.Delete the .udl files and store connection details in the registry by using system data source names.D.Delete the .udl files, and store connection details in the registry by using user data source names.E.Make the .udl files available on a network share.
Exhibit: You are developing a Web application. The Web application uses a GridView control to display data. You build your Web Forms for the Web application by dragging and dropping tables from the Data Connections tree in Server Explorer. You need to add a connection to your data by using the Add Connection dialog box as shown in the exhibit. During the process, you need to configure the .NET Data Provider that you use to create the data source objects. What should you do?()A. Right-click the connection, and click Properties. Modify the Provider property of the data connection.B. Click the Change button, and change the data provider for the selected data source.C. Click the Advanced button, and change the Data Source property to the target provider.D. Click the Advanced button, and change the Application Name property to the target provider.
You are managing the APPPROD database as a DBA which is not using the Oracle-managed files. You plan to duplicate this database in the same system with the name DUPDB.You want to create the same directory structure for duplicate database files as of the target database.You executed the following RMAN commands:What are the implications of this command?()A. It creates database files for the duplicate database under the Oracle base with a different directory for the duplicate database.B. It overwrites data files of the target database because a different location for data files is not mentioned for the duplicate database.C. It creates database files for the duplicate database under the same Oracle home as that of the target database with the same directory structure.D. It creates database files for the duplicate database under the same Oracle home as that of the target but with a different directory for the duplicate database.
You are the administrator of a new multiprocessor SQL Server 2000 computer. You are migrating data from other database management systems to this server. You need to load data from two data files into a new table on the server. The table is empty and has no indexes.You want to complete the data load as quickly as possible. What should you do? (Each correct answer represents part of the solution. Choose all that apply.)A.Apply a bulk update lock to the table.B.Use separate client connections to load the files into the table simultaneously.C.Create a clustered index on the table.D.Specify the Full Recovery model for the database.E.Specify the Bulk-Logged Recovery model for the database.
You work as an application developer at Certkiller .com. You are currently in the process of creating a new application for Certkiller .com. You are required to read compressed data files that has been sent by Certkiller .com‘s sales offices.These data files are less than 4 GB in size, but was compressed without cyclic redundancy. You want to write a method that receives the compressed files and return the uncompressed data as a byte array.What should you do?()A.B.C.D.
You are using flat files as the data source for one of your data warehousing applications. To optimize the application performance, you plan to move the data from the flat files to clustered tables in an Oracle database.While migrating the data, you want to have minimal impact on the database performance and optimize the dataload 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
You have a large amount of historical data in a flat file. Some analysts in your organization need toquery this data in the file. The file is too large to load the data in it into your current database. Which is the most effective method to access this data in your database()A、Use the database link.B、Use the SQL*Loader utility.C、Use the Oracle Data Pump utility.D、Create an external table and leave the data in the flat file
In Recovery Manager (RMAN), you are taking image copies of the data files of your production database and rolling them forward at regular intervals. You attempt to restart your database. After a regular maintenance task, you realize that one of the data files that belongs to the USERS tablespace is damaged and you need to recover the data file by using the image copy. Because a media failure caused the data file to be damaged, you want to place the d ata file in a different location while restoring the file. Which option must you consider for this task?()A、using only the RMAN SWITCH command to set the new location for the data fileB、placing the database in the MOUNT state for the restore and recovery operations.C、using an RMAN RUN block with the SET NEWNAME and then the SWITCH command.D、configuring two channels: one for the restore operation and the other for the recovery operation
In which case would you use a FULL OUTER JOIN?()A、Both tables have NULL values.B、You want all unmatched data from one table.C、You want all matched data from both tables.D、You want all unmatched data from both tables.E、One of the tables has more data than the other.F、You want all matched and unmatched data from only one table.
You are using RMAN to perform a closed database backup of your database. You issue these RMAN commands: STARTUP MOUNT; BACKUP FORMAT ’/BACKUP/df_%d_%s_%p.bus’ DATABASE filesperset = 2; Which components are included in the backup?()A、Only the data files.B、Only the data files and the online logs.C、The data files, control files, and the online logs.D、The data files and control files, but not the online logs.
If you create your database using Oracle Managed Files (OMF), what is true?()A、You must use Oracle predefined names to identify raw partitions that will hold OMF structures. B、You must define directories for two online redo log groups and three copies of the control file. C、If your CREATE DATABASE command fails, any OMF database files that have already been created will be dropped automatically. D、You must use only OMF data files when adding new tablespaces or data files to your database in the future.
You can use Oracle Flashback to look at past activity in your database. What are two other characteristics of Oracle Flashback?()A、Oracle Flashback uses undo information to construct consistent data. B、You can use a cursor opened while using an Oracle Flashback image to perform DML once you deactivate Oracle Flashback in your session. C、You can only use Oracle Flashback view of the data if the required records are still in the online redo log files. D、Oracle Flashback lists the DML that was executed during the period you identify when initiating your session.
You work as a database administrator for Certkiller .com. Your database is in NOARCHIVELOG mode. The database has been configured with three redo logs groups, and there have been five log switches. You lost one non-system-critical data file from your database. Which method would you use to recover the data file?()A、Restore all the data files and open the databaseB、Create the data file and performtablespacerecoveryC、No need to restore any file, just recover the databaseD、Restore only the system data file and recover the databaseE、Restore only lost date file and performtablespacerecovery
You want to drop the TBS1 tablespace from your database. You also want to delete the corresponding data files automatically, and not have to do it manually. What should you do?()A、Use the DROP DATAFILE command.B、Use the DROP TABLESPACE command.C、Ensure that all database files are Oracle Managed Files before using the DROP TABLESPACE command.D、Ensure that the DB_FILE_CREATE_DEST initialization parameter is set before using the DROP TABLESPACE command.
You plan to move data from a flat file to a table in your database. You decide to use SQL*Loader direct pathload method to perform this task. The table in which you plan to load data is an important table having variousintegrity constraints defined on it. Which constraints will remain enabled by default during this operation()A、CHECKB、UNIQUEC、NOT NULLD、PRIMARY KEYE、FOREIGN KEY
You are using flat files as the data source for one of your data warehousing applications. You plan to move the data from the flat file structures to an Oracle database to optimize the application performance. In your database you have clustered tables. While migrating the data, you want to have minimal impact on the database performance and optimize the data load operation. Which method would you use to load data into Oracle database?()A、use the external table populationB、use the Oracle Data Pump export and import utilityC、use the conventional path data load of SQL*Loader utilityD、use the direct path data load of Oracle export and import utility
In Recovery Manager (RMAN), you are taking image copies of the data files of your production database and rolling them forward at regular intervals. You attempt to restart your database. After a regular maintenance task, you realize that one of the data files that belongs to the USERS tablespace is damaged and you need to recover the data file by using the image copy. Because a media failure caused the data file to be damaged, you want to place the data file in a different location while restoring the file. Which option must you consider for this task?()A、using only the RMAN SWITCH command to set the new location for the data fileB、placing the database in the MOUNT state for the restore and recovery operations.C、using an RMAN RUN block with the SET NEWNAME and then the SWITCH command.D、configuring two channels: one for the restore operation and the other for the recovery operation
You want to access employee details contained in flat files as part of the EMPLOYEE table. You plan to add anew column to the EMPLOYEE table to achieve this. Which data type would you use for the new column()A、CLOBB、BLOBC、BFILED、LONG RAW
You want to access employee details contained in flat files as part of the EMPLOYEE table. You planto add a new column to the EMPLOYEE table to achieve this. Which data type would you use for the new column()A、CLOBB、BLOBC、BFILED、LONG RAW
You run a 16-bit scientific data analysis package on your Windows 2000 Professional computer. The package consists of three components. The first component is a data acquisition application that monitors continuous data output from scientific instruments. The second component is a data analysis application that receives data from the data acquisition application by using shared memory. The third component is a data graphing application that displays the processed data in real time. The data analysis application communicates with the data graphing application by using OLE. When you attempt to analyze large data sets, your computer is not able to display data in real time. You install a second processor in your computer; only one processor is used while the package is running, even though task manager shows both processors. You want your data analysis package to use both processors. What should you do?()A、Configure the data acquisition application to run in its own virtual DOS machine (VDM).B、Configure the data analysis application to run in its own virtual DOS machine (VDM).C、Configure the data graphing application to run in its own virtual DOS machine (VDM).D、Configure the virtual DOS machine for the data acquisition and data analysis applications to.have a hard affinity for processor 0. Configure the VDM for the data graphing application to.have a hard affinity for processor1. E、Configure the virtual DOS machine for the data acquisition to have a hard affinity for processor 0. Configure the VDM for the data graphing application to have a hard affinity for processor1.
You administer a SQL Server 2008 instance. You plan to deploy a new database to the instance. The database will be subject to frequent inserts and updates. The database will have multiple schemas. One of the schemas will contain a large amount of read-only reference data. You need to design the physical database structure for optimal backup performance. What should you do?() A、Create the database by using a single data file and a single log file.B、Create the database by using a single data file and multiple log files.C、Create the database by using a single log file and multiple filegroups.D、Create the database by using a single log file and a filegroup that has multiple data files.
单选题In Recovery Manager (RMAN), you are taking image copies of the data files of your production database and rolling them forward at regular intervals. You attempt to restart your database. After a regular maintenance task, you realize that one of the data files that belongs to the USERS tablespace is damaged and you need to recover the data file by using the image copy. Because a media failure caused the data file to be damaged, you want to place the d ata file in a different location while restoring the file. Which option must you consider for this task?()Ausing only the RMAN SWITCH command to set the new location for the data fileBplacing the database in the MOUNT state for the restore and recovery operations.Cusing an RMAN RUN block with the SET NEWNAME and then the SWITCH command.Dconfiguring two channels: one for the restore operation and the other for the recovery operation
单选题You are operating your database in NOARCHIVELOG mode. Your most recent backup includes a copy of all of the data files and the control files taken when the current log sequence number was 45. You experience disk failure on the drive on which your SYSTEM tablespace data files are stored. At the time of the failure, the current log sequence number is 98. Which files should you restore to recover from the loss of the SYSTEM tablespace data files?()AOnly the data files.BAll of the data files and the control files.COnly the data files belonging to the SYSTEM tablespace.DOnly the data files belonging to the SYSTEM tablespace and the control files.
单选题You are using RMAN to perform a closed database backup of your database. You issue these RMAN commands: STARTUP MOUNT; BACKUP FORMAT ’/BACKUP/df_%d_%s_%p.bus’ DATABASE filesperset = 2; Which components are included in the backup?()AOnly the data files.BOnly the data files and the online logs.CThe data files, control files, and the online logs.DThe data files and control files, but not the online logs.
单选题You are managing the APPPROD database as a DBA which is not using the Oracle-managed files. You plan to duplicate this database in the same system with the name DUPDB.You want to create the same directory structure for duplicate database files as of the target database. You executed the following RMAN commands: RMAN CONNECT TARGET sys/sys@APPPROD RMAN CONNECT AUXILIARY sys/sys@DUPDB RMAN DUPLICATE TARGET DATABASE TO dupdb FROM ACTIVE DATABASE PASSWORD FILE SPILE NOFILENAMECHECK; What are the implications of this command?()A It creates database files for the duplicate database under the Oracle base with a different directory for the duplicate database.B It overwrites data files of the target database because a different location for data files is not mentioned for the duplicate database.C It creates database files for the duplicate database under the same Oracle home as that of the target database with the same directory structure.D It creates database files for the duplicate database under the same Oracle home as that of the target but with a different directory for the duplicate database.
单选题In Recovery Manager (RMAN), you are taking image copies of the data files of your production database and rolling them forward at regular intervals. You attempt to restart your database. After a regular maintenance task, you realize that one of the data files that belongs to the USERS tablespace is damaged and you need to recover the data file by using the image copy. Because a media failure caused the data file to be damaged, you want to place the data file in a different location while restoring the file. Which option must you consider for this task?()Ausing only the RMAN SWITCH command to set the new location for the data fileBplacing the database in the MOUNT state for the restore and recovery operations.Cusing an RMAN RUN block with the SET NEWNAME and then the SWITCH command.Dconfiguring two channels: one for the restore operation and the other for the recovery operation
多选题You can use Oracle Flashback to look at past activity in your database. What are two other characteristics of Oracle Flashback?()AOracle Flashback uses undo information to construct consistent data.BYou can use a cursor opened while using an Oracle Flashback image to perform DML once you deactivate Oracle Flashback in your session.CYou can only use Oracle Flashback view of the data if the required records are still in the online redo log files.DOracle Flashback lists the DML that was executed during the period you identify when initiating your session.