单项选择题
A. This instance is being used to manage the operating system files.
B. This instance is being used to manage the files of other databases.
C. This instance is being used to manage the instances of other databases.
D. This instance is being used to manage the background processes of other instances.
单项选择题 InanOracle10gdatabase，thein-memorystatisticsaregatheredatregularintervalsandusedtoperformgrowth-trendanalysisandcapacityplanningofthedatabase.Whichcomponentstoresthesestatistics？（）
单项选择题 WhichtypeofPL/SQLconstructwouldyouusetoautomaticallycorrecttheerrorresultingfromastatementthatwassuspendedduetoaspace-relatedproblem？（）
单项选择题 Exhibit： View the Exhibit.You have more than one table in the recycle bin having the same original name， DEPT2. You do not have any table with the nameDEPT2 in your schema. You executed the following command：PURGE TABLE dept2； Which statement is correct in this scenario？（）