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（）AUse the database link.BUse the SQL*Loader utility.CUse the Oracle Data Pump utility.DCreate an external table and leave the data in the flat file
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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