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You created a view called EMP_DEPT_VU that contains three columns from the EMPLOYEES and DEPARTMENTS tables: EMPLOYEE_ID, EMPLOYEE_NAME AND DEPARTMENT_NAME. The DEPARTMENT_ID column of the EMPLOYEES table is the foreign key to the primary key DEPARTMENT_ID column of the DEPARTMENTS table. You want to modify the view by adding a fourth column, MANAGER_ID of NUMBER data type from the EMPLOYEES tables. How can you accomplish this task?()

  • A、ALTER VIEW EMP_dept_vu (ADD manger_id NUMBER);
  • B、MODIFY VIEW EMP_dept_vu (ADD manger_id NUMBER);
  • C、ALTER VIEW emp_dept_vu AS SELECT employee_id, employee_name, department_name, manager_id FROM employee e, departments d WHERE e.department _ id = d.department_id;
  • D、MODIFY VIEW emp_dept_vu AS SELECT employee_id, employee_name, department_name, manager_id FROM employees e, departments d WHERE e.department _ id = d.department_id;
  • E、CREATE OR REPLACE VIEW emp_dept_vu AS SELECT employee_id, employee_name, department_name, manager_id FROM employees e, departments d WHERE e.department _ id = d.department_id;
  • F、You must remove the existing view first, and then run the CREATE VIEW command with a new column list to modify a view.

参考答案

更多 “ You created a view called EMP_DEPT_VU that contains three columns from the EMPLOYEES and DEPARTMENTS tables: EMPLOYEE_ID, EMPLOYEE_NAME AND DEPARTMENT_NAME. The DEPARTMENT_ID column of the EMPLOYEES table is the foreign key to the primary key DEPARTMENT_ID column of the DEPARTMENTS table. You want to modify the view by adding a fourth column, MANAGER_ID of NUMBER data type from the EMPLOYEES tables. How can you accomplish this task?()A、ALTER VIEW EMP_dept_vu (ADD manger_id NUMBER);B、MODIFY VIEW EMP_dept_vu (ADD manger_id NUMBER);C、ALTER VIEW emp_dept_vu AS SELECT employee_id, employee_name, department_name, manager_id FROM employee e, departments d WHERE e.department _ id = d.department_id;D、MODIFY VIEW emp_dept_vu AS SELECT employee_id, employee_name, department_name, manager_id FROM employees e, departments d WHERE e.department _ id = d.department_id;E、CREATE OR REPLACE VIEW emp_dept_vu AS SELECT employee_id, employee_name, department_name, manager_id FROM employees e, departments d WHERE e.department _ id = d.department_id;F、You must remove the existing view first, and then run the CREATE VIEW command with a new column list to modify a view.” 相关考题
考题 Which SQL statement would you use to remove a view called EMP_DEPT_VU from your schema?() A. DROP emp_dept_uv;B. DELETE emp_dept_uv;C. REMOVE emp_dept_uv;D. DROP VIEW emp_dept_uv;E. DELETE VIEW emp_dept_uv;F. REMOVE VIEW emp_dept_uv;

考题 You are granted the CREATE VIEW privilege. What does this allow you to do? () A. Create a table view.B. Create a view in any schema.C. Create a view in your schema.D. Create a sequence view in any schema.E. Create a view that is accessible by everyone.F. Create a view only of it is based on tables that you created.

考题 You created a view called EMP_DEPT_VU that contains three columns from the EMPLOYEES and DEPARTMENTS tables:EMPLOYEE_ID, EMPLOYEE_NAME AND DEPARTMENT_NAME.The DEPARTMENT_ID column of the EMPLOYEES table is the foreign key to the primary keyDEPARTMENT_ID column of the DEPARTMENTS table.You want to modify the view by adding a fourth column, MANAGER_ID of NUMBER data type from the EMPLOYEES tables.How can you accomplish this task? ()A. ALTER VIEW EMP_dept_vu (ADD manger_id NUMBER);B. MODIFY VIEW EMP_dept_vu (ADD manger_id NUMBER);C. ALTER VIEW emp_dept_vu AS SELECT employee_id, employee_name, department_name, manager_id FROM employee e, departments d WHERE e.department _ id = d.department_id;D. MODIFY VIEW emp_dept_vu AS SELECT employee_id, employee_name, department_name, manager_id FROM employees e, departments d WHERE e.department _ id = d.department_id;E. CREATE OR REPLACE VIEW emp_dept_vu AS SELECT employee_id, employee_name, department_name, manager_id FROM employees e, departments d WHERE e.department _ id = d.department_id;F. You must remove the existing view first, and then run the CREATE VIEW command with a new column list to modify a view.

考题 On the Junos Pulse Access Control Service, you have created a role called Secret that you only want to provide to users who present a certificate.Using the admin GUI, which two features would you configure to satisfy this requirement?()A. Sign-in PolicyB. Role Mapping RuleC. Role RestrictionsD. Trusted Server CA

考题 Emerson()Transcendentalist.A、called himselfB、did not like the termC、never called himselfD、created the term

考题 You are granted the CREATE VIEW privilege. What does this allow you to do?()A、Create a table view.B、Create a view in any schema.C、Create a view in your schema.D、Create a sequence view in any schema.E、Create a view that is accessible by everyone.F、Create a view only of it is based on tables that you created.

考题 Which SQL statement would you use to remove a view called EMP_DEPT_VU from your schema?()A、DROP emp_dept_uv;B、DELETE emp_dept_uv;C、REMOVE emp_dept_uv;D、DROP VIEW emp_dept_uv;E、DELETE VIEW emp_dept_uv;F、REMOVE VIEW emp_dept_uv;

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考题 You need to perform certain data manipulation operations through a view called EMP_DEPT_VU, which you previously created. You want to look at the definition of the view (the SELECT statement on which the view was create.) How do you obtain the definition of the view? ()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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考题 You have created an ASP.NET server control named Shopping Cart for use by other developers. Some developers report that the Shopping Cart control does not function properly with ViewState disabled. You want to ensure that all instances of the Shopping Cart control work even if View State is disabled. What should you do?()A、Require developers to set EnableViewStateMac to true.B、Store state in ControlState instead of ViewState.C、Serialize the state into an Application state entry called "MyControl".D、Require developers to change the session state mode to SQLServer.

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考题 多选题On the Junos Pulse Access Control Service, you have created a role called Secret that you only want to provide to users who present a certificate.Using the admin GUI, which two features would you configure to satisfy this requirement?()ASign-in PolicyBRole Mapping RuleCRole RestrictionsDTrusted Server CA

考题 多选题Which two statements about views are true?()AA view can be created as read only.BA view can be created as a join on two or more tables.CA view cannot have an ORDER BY clause in the SELECT statement.DA view cannot be created with a GROUP BY clause in the SELECT statement.EA view must have aliases defined for the column names in the SELECT statement.

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考题 单选题You are granted the CREATE VIEW privilege. What does this allow you to do?()A Create a table view.B Create a view in any schema.C Create a view in your schema.D Create a sequence view in any schema.E Create a view that is accessible by everyone.F Create a view only of it is based on tables that you created.

考题 单选题Which SQL statement would you use to remove a view called EMP_DEPT_VU from your schema?()A DROP emp_dept_uv;B DELETE emp_dept_uv;C REMOVE emp_dept_uv;D DROP VIEW emp_dept_uv;E DELETE VIEW emp_dept_uv;F REMOVE VIEW emp_dept_uv;

考题 多选题Which two statements about creating constraints are true?()AConstraint names must start with SYS_CBAll constraints must be defines at the column level.CConstraints can be created after the table is created.DConstraints can be created at the same time the table is created.EInformation about constraints is found in the VIEW_CONSTRAINTS dictionary view.

考题 单选题You are an enterprise administrator for Cer-tech .com. All the servers on the network run Windows Server2008. The network consists of a server called Server01 on which Windows SharePoint Services (WSS) roleis installed. A group of users need to access the WSS server. However, you want to restrict the users toview items, open items, and view versions on the WSS server. To accomplish this task, you created agroup called SPUsers that will access content on the WSS server. Which of the following permissionswould you configure for the SPUsers group to restrict the permissions of the group to viewing items,opening items,and viewing versions?()A Limited AccessB DesignC ReadD Contribute

考题 单选题You need to perform certain data manipulation operations through a view called EMP_DEPT_VU, which you previously created. You want to look at the definition of the view (the SELECT statement on which the view was created.) How do you obtain the definition of the view?()A Use the DESCRIBE command on 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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