多选题In your production database， you observe that users’ transactions are consuming a lot of resources and you plan to impose resource restrictions by using Resource Manager. For which three resources can you enable usage restrictions by using Resource Manager？ （）ACPU usageBdegree of parallelismCnumber of open cursorsDnumber of sorts performedEidle time for blocking sessionsFnumber of disk I/O operations performedGnumber of memory I/O operations performed
多选题
In your production database， you observe that users’ transactions are consuming a lot of resources and you plan to impose resource restrictions by using Resource Manager. For which three resources can you enable usage restrictions by using Resource Manager？ （）
A
CPU usage
B
degree of parallelism
C
number of open cursors
D
number of sorts performed
E
idle time for blocking sessions
F
number of disk I/O operations performed
G
number of memory I/O operations performed
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