多项选择题

WhichstatementsabouttheMEMORY_TARGETinitializationparameteraretrue?()

A.MEMORY_TARGETcanbeincreaseduptothevalueofMEMORY_MAX_TARGET,if
B.MEMORY_MAX_TARGETdefaultstoavalueofzeroifMEMORY_TARGETisnotset
C.MEMORY_TARGETrepresentsthetotalamountofmemorythatcanbeallocatedtoSGAandPGAmemorystructures.
D.MEMORY_TARGETisstaticandcannotbemodifiedwithoutshuttingdowntheinstance