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单选题
ou have a large amount of historical data in a flat file. Some analysts in your organization need to query thisdata in the file. The file is too large to load the data in it into your current database. Which is the most effectivemethod 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
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单选题When the fuel oil is burning in the combustion chamber, it （）.A
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gives off large amount of heatC
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考题
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a large numberB
the large numberC
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单选题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
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单选题A consultant has been asked to do a performance analysis on a database server. Which subsystem should the consultant first analyze and why？（）A
CPU，because the database replication process requires a considerable amount of CPU timeB
Memory，because the buffer cache requires a large amount of memory to maintain the data in system memoryC
Disk，because it is important to configure a sufficient number of disks to match the CPU processing powerD
Network，because the data returned to the client from the server can be a large subset of the total database
考题
单选题You have a large amount of historical data in an operating system file. Some analysts in your organization need to query this data. The file is too large to load into your current database. Which is the most effective method to accomplish the task？（）A
Upgrade the hardware/memory to accommodate the data.B
Load the data into your database by using the PARALLEL clause.C
Give analysts DBA privilege， so that they can query DBA_EXTERNAL_TABLES.D
Use an external table so you can have the metadata available in your database， but leave the data in the operating system files.
考题
单选题The people in this city have planted（）trees along both sides of the streets.A
a great deal ofB
muchC
a large amount ofD
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单选题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
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use the conventional path data load of SQL*Loader utilityD
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