ocp認證052考題解析：1Z0-V8.02-第95題
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95. You have a large amount of historical data in a flat file. Some analysts in your organization need to query 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.
Answer: D
答案解析：
BC不對，題中說文件太大，不能加載到數據庫，A也不對，這是一個平面文件，不是數據庫文件，不能通過dblink來訪問。
所以只能使用外部表來訪問。
