Yes,_____is difficult to find a job nowadays, but_____is more difficult is try to find such a job with a high salary but few things to do.A、it, it.B、what, what.C、it, what.D、what, it. C

题目

Yes,_____is difficult to find a job nowadays, but_____is more difficult is try to find such a job with a high salary but few things to do.

A、it, it.

B、what, what.

C、it, what.

D、what, it. C

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第1题

贵阳市科杰电脑培训学校二级 C、二级 VF 培训班承诺考试不合格退培训费电话:0851-5561184 网址:www（20）设有一组作业，它们的作业提交时刻及估计运行时间如下所示：作业号提交时刻估计运行时间（分钟）Job1 8：30 70Job2 9：10 30Job3 9：30 15Job4 9：50 5在单道批处理方式下，采用短作业优先调度算法，作业的执行顺序为;A）Job1，Job4，Job3，Job2B）Job1，Job3，Job4，Job2C）Job4，Job3，Job2，Job1D）Job4，Job1，Job2，Job3

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第2题

Examine the structure of the EMP_DEPT_VU view:Column Name Type RemarksEMPLOYEE_ID NUMBER From the EMPLOYEES tableEMP_NAME VARCHAR2(30) From the EMPLOYEES table JOB_ID VARCHAR2(20) From the EMPLOYEES tableSALARY NUMBER From the EMPLOYEES tableDEPARTMENT_ID NUMBER From the DEPARTMENTS table DEPT_NAME VARCHAR2(30) From the DEPARTMENTS table Which SQL statement produces an error?（）A. SELECT * FROM emp_dept_vu;B. SELECT department_id, SUM(salary) FROM emp_dept_vu GROUP BY department _ id;C. SELECT department_id, job_id, AVG(salary) FROM emp_dept_vu GROUP BY department _ id, job_id;D. SELECT job_id, SUM(salary) FROM emp_dept_vu WHERE department_id IN (10,20) GROUP BY job_id HAVING SUM (salary) > 20000E. None of the statements produce an error; all are valid.

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第3题

Considerthefollowingcodesnippet:BEGINDBMS_SCHEDULER.SET_ATTRIBUTE(name=>,,lne_job1,attribute=>,,job_priority,value=>1);END;／Ifthiscodewereexecuted,whichofthefollowingstatementswouldbetrue?()A.Thepriorityofthelne_job1jobwouldbesetto1.B.Thelne_job1jobwouldbeexecutedsynchronously.C.Thelne_job1jobwouldrunimmediatelyintheuserscurrentsession.D.Thelne_job1jobwouldretainitscurrentpriority.E.Thejobwillimmediatelytakepriorityoverallrunningjobs.

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第4题

Examine the description of the EMPLOYEES table:EMP_ID NUMBER(4) NOT NULLLAST_NAME VARCHAR2(30) NOT NULLFIRST_NAME VARCHAR2(30)DEPT_ID NUMBER(2)JOB_CAT VARCHARD2(30)SALARY NUMBER(8,2)Which statement shows the maximum salary paid in each job category of each department? （）A. SELECT dept_id, job_cat, MAX(salary) FROM employees WHERE salary > MAX (salary);B. SELECT dept_id, job_cat, MAX(salary) FROM employees GROUP BY dept_id,job_cat;C. SELECT dept_id, job_cat, MAX(salary) FROM employees;D. SELECT dept_id, job_cat, MAX(salary) FROM employees GROUP BY dept_id;E. SELECT dept_id, job_cat, MAX(salary) FROM employees GROUP BY dept _ id job _ cat salary;

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第5题

When setting arguments for a job, which procedure do you use for types that cannot be implicitly converted to and from a VARCHAR2 datatype?()A. SET_JOB_ARGUMENT_VALUEB. SET_JOB_VALUE_ANYDATAC. SET_JOB_ANYDATA_VALUED. SET_SPECIAL_JOB_VALUEE. SET_JOB_ANYTYPE_VALUE

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第6题

Examine the data in the EMPLOYEES and EMP_HIST tables:EMPLOYEESNAME DEPT_ID MGR_ID JOB_ID SALARYEMPLOYEE_ID101 Smith 20 120 SA_REP 4000102 Martin 10 105 CLERK 2500103 Chris 20 120 IT_ADMIN 4200104 John 30 108 HR_CLERK 2500105 Diana 30 108 IT_ADMIN 5000106 Smith 40 110 AD_ASST 3000108 Jennifer 30 110 HR_DIR 6500110 Bob 40 EX_DIR 8000120 Ravi 20 110 SA_DIR 6500EMP HISTEMPLOYEE_ID NAME JOB_ID SALARY101 Smith SA_CLERK 2000103 Chris IT_CLERK 2200104 John HR_CLERK 2000106 Smith AD_ASST 3000108 Jennifer HR_MGR 4500The EMP_HIST table is updated at the end of every year. The employee ID, name, job ID, and salary of each existing employee are modified with the latest data. New employee details are added to the table.Which statement accomplishes this task?（）A. UPDATE emp_hist SET employee_id, name, job_id, salary = (SELECT employee_id, name, job_id, salary FROM employees) WHERE employee_id IN (SELECT employee_id FROM employees);B. MERGE INTO emp_hist eh USING employees e ON (eh.employee_id = e.employee_id) WHEN MATCHED THEN UPDATE SET eh.name = e.name, eh.job_id = e.job_id, eh.salary = e.salary WHEN NOT MATCHED THEN INSERT VALUES (e.employee id, e.name, job id, e.salary);C. MERGE INTO emp_hist eh USING employees e ON (eh.employee_id = e.employee_id) WHEN MATCHED THEN UPDATE emp hist SET eh.name = e.name, eh.job_id = e.job_id, eh.salary = e.salary WHEN NOT MATCHED THEN INSERT INTO emp_hist VALUES (e.employees_id, e.name, e.job_id, e.salary);D. MERGE INTO emp_hist eh USING employees e WHEN MATCHED THEN UPDATE emp_hist SET eh.name = e.name, eh.job_id = e.job_id, eh.salary = e.salary WHEN NOT MATCHED THEN INSERT INTO emp_hist VALUES (e.employees_id, e.name, e.job_id, e.salary);

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第7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 employeesB.to list the name, job_id, and manager name for all the employeesC.to find the name, salary, and the department name of employees who are not working with SmithD.to find the number of employees working for the Administrative department and earning less than 4000E.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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Yes,_____is difficult to find a job nowadays, but_____is more difficult is try to find such a job with a high salary but few things to do.

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Yes,_is difficult to find a job nowadays, but_is more difficult is try to find such a job with a high salary but few things to do.

更多“Yes,_is difficult to find a job nowadays, but_is more difficult is try to find such a job with a high salary but few things to do. ”相关问题