单项选择题
A. The statistics are stored in the pending statistics table in the data dictionary.
B. The statistics are treated as the current statistics by the optimizer for all sessions.
C. The statistics are treated as the current statistics by the optimizer for the current sessions only.
D. The statistics are temporary and used by the optimizer for all sessions until this session terminates.
单项选择题 Multiple RMAN sessions are connected to the database instance. Examine the following output when backup commands are running in server sessions: What could have helped you to correlate server sessions with channels?（）
多项选择题 Youwanttoenableresumablespaceallocationattheinstancelevel.Whichtwoactionswouldenableresumablespaceallocationattheinstancelevel？（）
多项选择题 YouwanttoanalyzeaSQLTuningSet（STS）usingSQLPerformanceAnalyzerinatestdatabase.WhichtwostatementsaretrueregardingtheactivitiesperformedduringthetestexecutionofSQLsinaSQLTuningSet？（）