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原创 Linux操作系统 作者:jbymy2000 时间:2012-03-15 03:57:11 0 删除 编辑
85. 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 population
B) use the Oracle Data Pump export and import utility
C) use the conventional path data load of SQL*Loader utility
D) use the direct path data load of Oracle export and import utility
你正在使用一个简单的文件作为你的应用的数据源,你打算将这些数据从文件里导入到数据库里,以此优化应用程序的性能。你已经收集好了库表。在迁移数据的时候,你想尽可能不影响数据库的性能。 你会使用哪种方法将数据导入到库里?
Because the source is "flat file" ,so should consider to use SQL*LOADER And the target table is "clustered table",so must use conventional path to load data.

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