单项选择题
A.It provides each session with its own view of the database at a different point in the past.
B.It enables you to execute scalable applications on a clustered database without having to partition the users or the database tables.
C.It lets you dynamically reassign memory in your database buffer cache to different block buffer sizes.
D.It allows you to add new sites to multimaster replication environment without quiescing the master definition site.
多项选择题 Whatarethreebenefitsofperformingdatadefinitionlanguage（DDL）statementsagainstapartitionedtablewiththeUPDATEGLOBALINDEXESclause？（）
单项选择题 Thereismorethanonewaytosettheservertodetectandaffectlongrunningoperationsautomatically.Whatisthebestchoiceofyouwanttoreducetheimpactoflongrunningoperationsonotheruserswithoutabortingthelongrunningoperations？（）
多项选择题 he Dynamic SGA feature allows the SGA to grow and shrink dynamically according to an ALTER SYSTEM command. This avoids the previous need of shutting down the instance in order to modify the components of the SGA， namely the buffer cache and shared pool components. Which three statements are true for the Dynamic SGA feature？ （）