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READ Free Dumps For Oracle- 1z0-052





Question ID 21864

Your test database is configured to run in NOARCHIVELOG mode. One of the data files in the USERS
tablespace is lost due to a media failure. You notice that all the online redo logs have been overwritten since
the last backup.
What would you do to recover the data file?

Option A

Take the USERS tablespace offline and re-create the lost data file

Option B

Shutdown the instance, restore the data file from the last consistent backup and restart the database
instance

Option C

Shutdown the instance, restores all the database files from the last consistent backup and restart the
database instance

Option D

Take the USERS tablespace offline, restore all the data files of the USERS tablespace from the last
consistent backup and make the tablespace online

Correct Answer C
Explanation


Question ID 21865

Examine the command:
SQL>DBMS_STATS.SET_TABLE_PREFS('SH','CUSTOMERS','PUBLISH','false');
Which statement describes the effect of the above command?

Option A

Automatic statistics collection is stopped for the CUSTOMERS table

Option B

Statistics for the CUSTOMERS table are locked and cannot be overwritten

Option C

Existing statistics for the CUSTOMERS table become unusable for the query optimizer

Option D

Subsequently, statistics gathered on the CUSTOMERS table are stored as pending statistics

Correct Answer D
Explanation

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