多项选择题

A.You can load data into multiple tables during the sam……

Which two statements are true regarding the usage of the SQL*Loader utility（）

A.You can load data into multiple tables during the same load session.
B.You can load data from multiple files to a table during the same load session.
C.You cannot perform selective data loading based on the values available in the records.
D.You can use an export file generated by the EXPDP utility as an input data file to load the data.
E.You can load data only if the input file is available on the disk and tape but not in a named pipes.

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单项选择题WhichstatementistrueaboutloadingdatausingtheconventionalpathofSQL*Loader（）

A.Redo is not generated while performing conventional path loads.
B.Only PRIMARY KEY， UNIQUE KEY， and NOT NULL constraints are checked.
C.No exclusive locks are acquired when the conventional path loads are performed.
D.Instead of performing transactions， SQL*Loader directly writes data blocks to the data files.
E.INSERT triggers are disabled before the conventional path load and reenabled at the end of the load.

多项选择题Whichtwooperationscanbeperformedonanexternaltable（）

A.Create a view on the table.
B.Create an index on the table.
C.Create a synonym on the table.
D.Add a virtual column to the table.
E.Update the table using the UPDATE statement.
F.Delete rows in the table using the DELETE command.

单项选择题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

多项选择题You plan to move data from a flat file to a table in your database. You decide to use SQL*Loader directpath load method to perform this task. The table in which you plan to load data is an important tablehaving various integrity constraints defined on it. Which constraints will remain enabled by default during this operation（）

A.CHECK
B.UNIQUE
C.NOT NULL
D.PRIMARY KEY
E.FOREIGN KEY

单项选择题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.