单项选择题
The Database Resource Manager is not currently active in your database that is up and running. You created a resource plan named DAY_PLAN that contains two sub-plans named MANAGERS_PLAN and CLERKS_PLAN. You decided to activate DAY_PLAN by executing the following statement： SQL>ALTER SYSTEM SET RESOURCE_MANAGER_PLAN = ’managers_plan’； What will be the outcome of this statement？（）
A. The statement will deactivate DAY_PLAN.
B. The statement will activate DAY_PLAN as the top plan.
C. The statement will activate MANAGERS_PLAN as the top plan.
D. The statement will return an error because MANAGERS_PLAN is not the top plan.
相关考题
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单项选择题
You are using the Database Resource Manager to manage database resources. You created a resource plan directive for the MANAGERS resource consumer group under the SALES_PLAN by using the following statement： SQL>EXEC DBMS_RESOURCE_MANAGER.CREATE_PLAN_DIRECTIVE （PLAN => ’SALES_PLAN’， GROUP_OR_SUBPLAN => ’MANAGERS’， CPU_P1 => 100， CPU_P2 =>0， SWITCH_GROUP => ’CLERKS’， SWITCH_TIME_IN_CALL => 600）； A user， SCOTT， who is assigned to the MANAGERS group， starts a database session and executes a query on the database. What is the outcome if the query takes approximately 15 minutes to complete？（）
A. The query starts under the CLERKS group and the user， SCOTT， switches back to the MANAGERS group after the query completes.
B. The query starts under the MANAGERS group but terminates with an error when the execution time exceeds 10 minutes.
C. The query starts under the MANAGERS group and switches automatically to the CLERKS group when the execution time exceeds 10 minutes. The query does not switch back to the MANAGERS group after the query completes.
D. The query starts under the MANAGERS group， the user SCOTT switches automatically to the CLERKS group when the execution time exceeds 10 minutes， and then switches back to the MANAGERS group after the query completes. -
单项选择题
Click the Exhibit（s） button to view the DEPARTMENTS plan. After analyzing the Exhibit， what conclusion will you draw？（）
A. The CPU cannot be assigned to the members of the SYS_GROUP group.
B. The members of the OTHER_GROUPS group will always be assigned 100 percent CPU.
C. The members of the OTHER_GROUPS group will never be assigned 100 percent CPU.
D. The members of the OTHER_GROUPS group will be assigned 100 percent CPU if the CPU is not assigned to the members of the SYS_GROUP group and the PAYROLL， SALES， and MARKETING groups. -
单项选择题
You issued the following statement： SQL> ALTER SESSION SET NLS_LANG=FRENCH_CANADA.WE8ISO8859P1； Which parameter is NOT overridden by using the above statement？（）
A. the value of the NLS_LANGUAGE variable
B. the value of the NLS_TERRITORY variable
C. the value of the NLS_CURRENCY variable
D.the character encoding scheme used by the client application
