單項(xiàng)選擇題

The TRANS_SUMMARY table contains product-wise transaction details that get updated with every transactionin the system. Each row has cumulative transaction details of a single product and every product is identified bya product code， which is the primary key.As part of the archival process， the company wants to transfer therows in the TRANS_SUMMARY table to the TRANS_SUMMARY_DUP table at the end of every quarter of theyear. Along with existing products， the company deals with many new products during every quarter.
Whichmethod is best suited for this quarterly data transfer（）

A.Using the MERGE command
B.Using the SQL*Loader utility
C.Using the correlated UPDATE command
D.Using the INSERT command to perform bulk operation

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多項(xiàng)選擇題

Which two statements about the background process of the database writer are true（）

A.It is possible to have multiple database writers in an Oracle instance.
B.It writes dirty buffers， if any， to data files whenever a checkpoint occurs.
C.It writes dirty buffers， if any， to data files whenever a transaction commits.
D.It writes dirty buffers， if any， to data files before the log writer （LGWR） writes

單項(xiàng)選擇題

To make audit information more productive， the DBA executes the following command before starting an auditoperation：
SQL> ALTER SYSTEM SET AUDIT_TRAIL=DB，EXTENDED SCOPE=SPFILE；
Which statement is true regarding the audit record generated when auditing starts after restarting Thedatabase（）

A.It contains only the plan for the SQL statement executed by the user.
B.It contains the SQL text executed by the user and the bind variables used with it.
C.It contains the plan and statistics associated with the SQL statement executed by the user.
D.It contains the plan for the SQL statement executed by the user and the bind variables used with it

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Which two statements about the background process of the database writer are true（）

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