单项选择题
While tuning a SQL statement， the SQL Tuning Advisor finds an existing SQL profile for the statement that has stale statistics available. What would the optimizer do in this situation？（）
A. It updates the existing SQL profiles with current statistics
B. It makes the statistics information available to GATHER_STATS_JOB
C. It initiates the statistics collection process by running GATHER_STATS_JOB
D. It logs a warning message in the alert log so that the DBA can perform statistics collection manually
相关考题
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单项选择题
You are maintaining the SALES database. You have added a new disk to a disk group. Automatic StorageManagement performs the rebalancing activity. You want to speed up the rebalancing activity.Which parameter should you specify to control the speed of the rebalancing activity?（）
A. ASM_POWER_LIMIT
B. ASM_DISKSTRING
C. ASM_DISKGROUPS
D. INSTANCE_TYPE -
单项选择题
WhichstatementaboutusingRMANstoredscriptsistrue？（）
A. To create and execute an RMAN stored script，you must use a recovery catalog.
B. When executing a stored script and a command fails，the remainder of the script is executed，and a message is written to the alert log file.
C. RMAN stored scripts can always be executed against any target database that is registered in the recovery catalog.
D. When you execute a stored script，it always executes using the persistent channel settings previously set with the CONFIGURE command. -
单项选择题
Whichtuningtoolrecommendshowtooptimizematerializedviewssothattheseviewscantakeadvantageofthegeneralqueryrewritefeature？（）
A. Segment Advisor
B. SQL Access Advisor
C. Undo Advisor
D. SQL Tuning Advisor
