單項(xiàng)選擇題

Your database is in ARCHIVELOG mode. You have two online redo log groups，each of which contains one redo member.
When you attempt to start the database， you receive the following errors：（）

A. ALTER DATABASE DROP LOGFILE GROUP 1
B. ALTER DATABASE CLEAR LOGFILE GROUP 1
C. ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1
D. ALTER DATABASE DROP LOGFILE MEMBER ’D：\REDO01.LOG’

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多項(xiàng)選擇題

While deploying a new application module，the software vendor ships the application software along with appropriate SQL plan baselines for the new SQLs being introduced.
Which two statements describe the consequences？（）

A. The plan baselines can be evolved over time to produce better performance.
B. The newly generated plans are directly placed into the SQL plan baseline without being verified.
C. The new SQL statements initially run with the plans that are known to produce good performance under standard test configuration.
D. The optimizer does not generate new plans for the SQL statements for which the SQL plan baseline has been imported.

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Your database is in ARCHIVELOG mode. You have two online redo log groups，each of which contains one redo member. When you attempt to start the database， you receive the following errors：（）

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While deploying a new application module，the software vendor ships the application software along with appropriate SQL plan baselines for the new SQLs being introduced. Which two statements describe the consequences？（）

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Your database is in ARCHIVELOG mode. You have two online redo log groups，each of which contains one redo member.
When you attempt to start the database， you receive the following errors：（）

While deploying a new application module，the software vendor ships the application software along with appropriate SQL plan baselines for the new SQLs being introduced.
Which two statements describe the consequences？（）