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提问人：网友zcxtdn 发布时间：2022-01-07

[主观题]

Click the Exhibit button to examine the structures of the EMPLOYEES and TAX tables.You need to find the percentage tax applicable for each employee. Which SQL statement would you use？（）

Click the Exhibit button to examine the structures

A.SELECT employee_id, salary, tax_percent FROM employees e JOIN tax t ON e.salary BETWEEN t.min_salary AND t.max_salary;

B.SELECT employee_id, salary, tax_percent FROM employees e JOIN tax t WHERE e.salary ＞ t.min_salary AND ＜ t.max_salary;

C.SELECT employee_id, salary, tax_percent FROM employees e JOIN tax t ON (MIN(e.salary) = t.min_salary AND MAX(e.salary) = t.max_salary);

D.You cannot find the information because there is nocommon column between the two tables.

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更多“Click the Exhibit button to examine the structures of the EMPLOYEES and TAX tables.You need to find …”相关的问题

第1题

Click the Exhibit button to examine the structures of the EMPLOYEES, DEPARTMENTS, and TAX tables.For which situation would you use a nonequijoin query？（）

A.to find the tax percentage for each of the employees

B.to list the name, job_id, and manager name for all the employees

C.to find the name, salary, and the department name of employees who are not working with Smith

D.to find the number of employees working for the Administrative department and earning less than 4000

E.to display name, salary, manager ID, and department name of all the employees, even if the employees do not have a department ID assigned

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第2题

Click the Print button to print the workbook.（)

Click the Print button to print the workbook.()

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第3题

Click the Exhibit button.Which type of NAT is being used in the exhibit？（）

A. no NAT

B. destination NAT

C. source NAT

D. port address translation (PAT)

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第4题

Click the Exhibit button and examine the data in the EMPLOYEES and DEPARTMENTS tables.You

want to retrieve all employees, whether or not they have matching departments in the departments table. Which query would you use？（）

A.SELECT last_name, department_name FROM employees NATURAL JOIN departments;

B.SELECT last_name, department_name FROM employees JOIN departments ;

C.SELECT last_name, department_name FROM employees e JOIN departments d ON (e.department_id = d.department_id);

D.SELECT last_name, department_name FROM employees e RIGHT OUTER JOIN departments d ON (e.department_id = d.department_id);

E.SELECT last_name, department_name FROM employees FULL JOIN departments ON (e.department_id = d.department_id);

F.SELECT last_name, department_name FROM employees e LEFT OUTER JOIN departments d ON (e.department_id = d.department_id);

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第5题

以下哪些是C2中常用的Mouse事件

A、On any click

B、On click

C、Mouse over

D、Mouse button is down

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第6题

ClicktheExhibitbutton.Whatistheresult?()

A.CompilationofclassAfails.

B.Line28printsthevalue3toSystem.out.

C.Line28printsthevalue1toSystem.out.

D.Aruntimeerroroccurswhenline25executes.

E.Compilationfailsbecauseofanerroronline28.

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第7题

Given:10.interfaceData{publicvoidload();}11.abstractclassInfo{publicabstractvoidload();}WhichclasscorrectlyusestheDatainterfaceandInfoclass?()

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第8题

Given:Whatistheresult?()

A.3

B.23

C.32

D.123

E.321

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第9题

You are administering a database stored in Automatic Storage management (ASM). The files are storedin the DATA disk group. You execute the following command:SQL >ALTER DISKGROUP data ADD ALIAS ‘+data/prod/myfile.dbf’ FOR ‘+data.231.45678’;What is the result?（）

A. The file ‘+data.231.54769’ is physically relocated to ‘+data/prod’ and renamed as ‘myfile.dbf’.

B. The file ‘+data.231.54769’ is renamed as ‘myfile.dbf’, and copied to ‘+data/prod’.

C. The file ‘+data.231.54769’ remains in the same location and a synonym ‘myfile.dbf‘ is created.

D. The file ‘myfile.dbf’ is created in ‘+data/prod’ and the reference to ‘+data.231.54769’ in the data dictionary removed.

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