單項(xiàng)選擇題

You are maintaining your database in Oracle10g. You have set the value of the STATISTICS_LEVEL initialization parameter to TYPICAL and the value of the FAST_START_MTTR_TARGET parameter to 900 seconds. To increase the performance of the database， you want to determine the optimal size of the online redo log files. Which tool enables you to determine the optimal size of the online redo log files？（）

A. Oracle Enterprise Manager
B. The V$LOG view
C. The V$LOGFILE view
D. The V$FLASHBACK_DATABASE_LOGS view

你可能感興趣的試題

In which scenario will you create a sorted hash cluster？（）

A. if the application uses queries joining tables only occasionally
B. if the full table scan is executed often on only one table of the clustered tables
C. if the data for all the rows of a cluster key value exceeds one or two Oracle blocks
D. when you want the data to be returned automatically in the chronological order

單項(xiàng)選擇題

You moved the index EMP_NO_INDX from one tablespace to another and then issued the following command to rebuild the index EMP_NO_INDX：
SQL> ALTER INDEX EMP_NO_INDX REBUILD ONLINE；
Which table allows the users to access the EMP_NO_INDX index while performing the rebuild operation？（）

A. Index-organized table
B. Mapping Table
C. Clustered Table
D. Journal Table

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你可能感興趣的試題

In which scenario will you create a sorted hash cluster？ （）

You moved the index EMP_NO_INDX from one tablespace to another and then issued the following command to rebuild the index EMP_NO_INDX： SQL> ALTER INDEX EMP_NO_INDX REBUILD ONLINE； Which table allows the users to access the EMP_NO_INDX index while performing the rebuild operation？（）

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In which scenario will you create a sorted hash cluster？（）

You moved the index EMP_NO_INDX from one tablespace to another and then issued the following command to rebuild the index EMP_NO_INDX：
SQL> ALTER INDEX EMP_NO_INDX REBUILD ONLINE；
Which table allows the users to access the EMP_NO_INDX index while performing the rebuild operation？（）