單項選擇題

Flashback Database is enabled in your Oracle 10g database. One of your database users erroneously purged an important table residing in his schema. The table was purged sometime between 10：00 P.M. and 10：30 P.M. The next day， you decide to flash back the database. Before you flash back the database， you want to ensure that you have all the necessary flashback data. Which dynamic performance view must you use to determine whether you have the required flashback data to recover the purged table？（）

A. V$DATABASE
B. V$UNDOSTAT
C. V$FLASHBACK_DATABASE_LOG
D. V$FLASHBACK_DATABASE_STAT

你可能感興趣的試題

You are working as a DBA on Oracle Database 9i. You plan to upgrade your 9i database to Oracle 10g. To be familiar with the new database technology， you decide to install Oracle Database 10g on your workstation at home. You create a general purpose database.
After the installation， you make the following changes in your initialization parameter file：LOG_ARCHIVE_DEST_1=’LOCATION=USE_DB_RECOVERY_FILE_DEST’
DB_RECOVERY_FILE_DEST =
’LOCATION=d：\product\10.1.0\flash_recovery_area’
DB_RECOVERY_FILE_DEST_SIZE=10g
Where are the archived redo logs stored for your database？（）

A. The archived redo logs are stored in an operating system-dependent location.
B. The archived redo logs are stored in the location specified by LOG_ARCHIVE_DEST_1.
C. The archived redo logs are stored in the location specified by DB_RECOVERY_FILE_DEST.
D. The archived redo logs are stored in the locations specified by both LOG_ARCHIVE_DEST_1 and DB_RECOVERY_FILE_DEST.

單項選擇題

You have configured the flash recovery area to store online redo log files， control files， archived redo logs and RMAN backups. Which of the following files can you successfully delete from the flash recovery area if you want to reclaim the space within it？（）

A. multiplexed control files
B. RMAN obsolete backups
C. multiplexed online redo log files
D. archived redo logs that have not been copied to tape

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你可能感興趣的試題

You have configured the flash recovery area to store online redo log files， control files， archived redo logs and RMAN backups. Which of the following files can you successfully delete from the flash recovery area if you want to reclaim the space within it？（）

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You have configured the flash recovery area to store online redo log files， control files， archived redo logs and RMAN backups. Which of the following files can you successfully delete from the flash recovery area if you want to reclaim the space within it？（）