单项选择题
A. Setting a metric threshold
B. Implementing Database Resource Manager
C. Enabling resumable timeout for user sessions
D. Decreasing the value of the IDLE_TIME resource limit in the default profile
多项选择题 Examine these two statements:Which three are true about the MRKT tablespace?（）
多项选择题 You want to flash back a test database by five hours.You issue this command:SQL > FLASHBACK DATABASE TO TIMESTAMP (SYSDATE - 5/24);Which two statements are true about this flashback scenario?（）
多项选择题 Which three statements are true about SQL plan directives?（）