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多項選擇題

Automatic Consumer Group Switching is an important new feature of the Database Resource Manager. Which three plan directive parameters are used to control this feature？（）

A.SWITCH_TIME
B.SWITCH_GROUP
C.MAX_SESS_POOL
D.SWITCH_ESTIMATE

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單項選擇題

You company has four DBAs. You need to know which DBA added a column to the JOB_HISTORY table. The database cannot be offline during work hours. Which LogMiner command can you use to find out which user made the table change？（）

A.A
B.B
C.C
D.D

單項選擇題

You created a database by using the Database Configuration Assistant. What must you do to access a user account in the sample schemas？（）

A.A
B.B
C.C
D.D