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【单选题】

View the Exhibit for some of the parameter settings. You start a session and issue the following command:<br /> SQL>CREATE INDEX emp_ename ON emp(ename) TABLESPACE users INVISIBLE;<br /> What is the outcome of the above command?()<br /> <img src="https://nimg.ppkao.com/2018-08/yiyu/2018080210525934337.jpg?sign=92173c029f905d2e451b142ae7953a42&t=62d30596" />

A、The index is not used by the optimizer but is maintained during DML operations.

B、The index is not used by the optimizer and is not maintained during DML operations.

C、The index is used by the optimizer only if a hint is specified in the query statement and is maintained during DML operations.

D、The index is used by the optimizer only if a hint is specified in the query statement but is not maintained during DML operations.

更多“ View the Exhibit for some of the parameter settings. You start a session and issue the following command:<br /> SQL>CREATE INDEX emp_ename ON emp(ename) TABLESPACE users INVISIBLE;<br /> What is the outcome of the above command?()<br /> <img src="https://nimg.ppkao.com/2018-08/yiyu/2018080210525934337.jpg?sign=92173c029f905d2e451b142ae7953a42&t=62d30596" />”相关的问题
第1题

A、The optimizer uses a new plan because none of the plans in the exhibit2 are fixed plans.  B、The optimizer uses the plan in the second row of the exhibit2 because it is an accepted plan.  C、The optimizer uses the plan in the first row of the exhibit2 because it is the latest generated plan.  D、The optimizer uses the plan in the first row of the exhibit2 because OPTIMIZER_MODE was set to FIRST_ROW during its creation.  

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第4题

A、Accept the recommended SQL profile.  B、Collect statistics for the related objects.  C、Run the Access Advisor for the SQL statement.  D、Run the Segment Advisor for recommendations.  

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第7题

A、Use the DESCRIBE command in the EMP_DEPT VU view.  B、Use the DEFINE VIEW command on the EMP_DEPT VU view.  C、Use the DESCRIBE VIEW command on the EMP_DEPT VU view.  D、Query the USER_VIEWS data dictionary view to search for the EMP_DEPT_VU view.  E、Query the USER_SOURCE data dictionary view to search for the EMP_DEPT_VU view.  F、Query the USER_OBJECTS data dictionary view to search for the EMP_DEPT_VU view.  

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第8题

A、Use the DESCRIBE command in the EMP_DEPT VU view.  B、Use the DEFINE VIEW command on the EMP_DEPT VU view.  C、Use the DESCRIBE VIEW command on the EMP_DEPT VU view.  D、Query the USER_VIEWS data dictionary view to search for the EMP_DEPT_VU view.  E、Query the USER_SOURCE data dictionary view to search for the EMP_DEPT_VU view.  F、Query the USER_OBJECTS data dictionary view to search for the EMP_DEPT_VU view.  

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第9题

A、Use the DESCRIBE command in the EMP_DEPT VU view.  B、Use the DEFINE VIEW command on the EMP_DEPT VU view.  C、Use the DESCRIBE VIEW command on the EMP_DEPT VU view.  D、Query the USER_VIEWS data dictionary view to search for the EMP_DEPT_VU view.  E、Query the USER_SOURCE data dictionary view to search for the EMP_DEPT_VU view.  F、Query the USER_OBJECTS data dictionary view to search for the EMP_DEPT_VU view.  

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第10题

A、A.Use the DESCRIBE command on the EMP_DEPT_VU view.  B、B.Use the DEFINE VIEW command on the EMP_DEPT_VU view.  C、C.Use the DESCRIBE VIEW command on the EMP_DEPT_VU view.  D、D.Query the USER_VIEWS data dictionary view to search for the EMP_DEPT_VU view.  E、E.Query the USER_SOURCE data dictionary view to search for the EMP_DEPT_VU view.  F、F.Query the USER_OBJECTS data dictionary view to search for the EMP_DEPT_VU view.  

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