单项选择题
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
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?（）
单项选择题 WhichstatementaboutusingRMANstoredscriptsistrue？（）
单项选择题 Whichtuningtoolrecommendshowtooptimizematerializedviewssothattheseviewscantakeadvantageofthegeneralqueryrewritefeature？（）