单项选择题
A. assign users to consumer groups
B. set the resource plan for the instance
C. configure a simple resource plan and specify plan directives
D. configure a complex resource plan and specify plan directives
单项选择题 Whilesettingupthethresholdfortablespacespaceusagemetricsforoneofyourtablespaces，youdefinethecriticalthresholdas60%andwarningthresholdas75%.Whatwouldbetheresultofthissetting？（）
单项选择题 Manually，yousettheconsumergroupofallofthenewlycreateduserstoMYDB_GRP.Youwanttheuserstobeabletochangetheirconsumergroupsaspertheapplicationrequirement.Whatwasthefirststepthatwasneededintheprocesstoachievethisobjective？（）
单项选择题 Byusingthetransactionidentifierprovidedby（）foraparticularrowchange，youcanusetheFlashbackTransactionQuerytoseetheoperationperformedbythetransaction.