單項選擇題

You are managing an Oracle Database 10g database that uses Oracle Managed Files （OMF）. You enabled the block change tracking feature for the database. Which statement regarding the change tracking file is true？（）

A. One block change tracking file is created for each data file. By default， the file is created in DB_CREATE_FILE_DEST.
B. One block change tracking file is created for each data file. By default， the file is created in BACKGROUND_DUMP_DEST.
C. One block change tracking file is created for the database. By default， the file is created in DB_CREATE_FILE_DEST.
D. One block change tracking file is created for the database. By default， the file is created in BACKGROUND_DUMP_DEST.

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單項選擇題

You execute the following command to enable a session in resumable mode：
SQL> ALTER SESSION ENABLE RESUMABLE TIMEOUT 60；
What is the impact of a timeout on the statements being suspended？（）

A. The statements remain suspended for at least 60 seconds.
B. The statements are suspended for 60 seconds and then they are executed.
C. The suspended statements error out if the problem is not rectified within 60 seconds.
D. The statements are automatically suspended 60 seconds after an error is received， and then attempt to execute normally again.

單項選擇題

In your test database， you find that a user’s session is executing a lot of SQL statements， resulting in the generation of a large number of trace files. While investigating the reason， you find that SQL trace has been enabled at the instance level. You want to disable SQL trace， remotely， only for that user session to reduce the volume of trace data being generated.How do you achieve this objective？（）

A. by setting the SQL_TRACE parameter to FALSE in the parameter file
B. by using DBMS_MONITOR.SESSION_TRACE_DISABLE to disable the tracing for the user session
C. by setting the SQL_TRACE parameter to FALSE by using the ALTER SYSTEM command in the user session
D. by setting the SQL_TRACE parameter to FALSE by using the ALTER SESSION command in the user session

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You are managing an Oracle Database 10g database that uses Oracle Managed Files （OMF）. You enabled the block change tracking feature for the database. Which statement regarding the change tracking file is true？（）

你可能感興趣的試題

You execute the following command to enable a session in resumable mode： SQL> ALTER SESSION ENABLE RESUMABLE TIMEOUT 60； What is the impact of a timeout on the statements being suspended？（）

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You execute the following command to enable a session in resumable mode：
SQL> ALTER SESSION ENABLE RESUMABLE TIMEOUT 60；
What is the impact of a timeout on the statements being suspended？（）