网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
Examine the data from the EMP table:The COMMISSION column shows the monthly commission earned by the employee.Which three tasks would require subqueries or joins in order to perform in a single step?（）
A. Deleting the records of employees who do not earn commission.
B. Increasing the commission of employee 3 by the average commission earned in department 20.
C. Finding the number of employees who do NOT earn commission and are working for department 20.
D. Inserting into the table a new employee 10 who works for department 20 and earns a commission that is equal to the commission earned by employee 3.
E. Creating a table called COMMISSION that has the same structure and data as the columns EMP_ID and COMMISSIONS of the EMP table.
F. Decreasing the commission by 150 for the employees who are working in department 30 and earning a commission of more then 800.
参考答案
更多 “ Examine the data from the EMP table:The COMMISSION column shows the monthly commission earned by the employee.Which three tasks would require subqueries or joins in order to perform in a single step?（）A. Deleting the records of employees who do not earn commission.B. Increasing the commission of employee 3 by the average commission earned in department 20.C. Finding the number of employees who do NOT earn commission and are working for department 20.D. Inserting into the table a new employee 10 who works for department 20 and earns a commission that is equal to the commission earned by employee 3.E. Creating a table called COMMISSION that has the same structure and data as the columns EMP_ID and COMMISSIONS of the EMP table.F. Decreasing the commission by 150 for the employees who are working in department 30 and earning a commission of more then 800. ” 相关考题
考题
The Ad Council’s () is to identify a select number of significant public issues.
A、permissionB、admissionC、missionD、commission
考题
客户需要计算EMP表中所有职工12*salary* commission_pct的值.EMP表结构如下:LAST NAME VARCNAR2(35)NOT NULL SALARY NUMBER(9,2)NOT NULL COMMISION_PCTNUMBER(4,2)哪个语句可以查询计算EMP表中所有职工行?()
A.SELECT last_name，12*salary* commission_pct FROM empB.SELECT last_name，12*salary*（commission_pct，0）FROM empC.SELECT last_name，12*salary*（nvl（commission_pct，0））FROM emp如果oracle第一个参数为空那么显示第二个参数的值，如果第一个参数的值不为空，则显示第一个参数本来的值D.SELECT last_name，12*salary*（decode（commission_pct，0））FROM emp
考题
EMPLOYEES中职员编号为90的职员的commission_pct为空值,salary为1000,语句select12*salary*(commission_pct＋0.2)comm from EMPLOYEES;comm显示的结果是()。
A.12000B.0C.2400D.NULL
考题
The Foreign Minister made an excellent ____ ernational situation.A: committeeB: commandC: commentD: commission
考题
Whichtwocodefragments,insertedindependentlyatline12,willcompile?()
A.super（name，baseSalary）；B.this.commission=commission；C.super（）；this.commission=commission；D.this.commission=commission；super（）；E.super（name，baseSalary）；this.commission=commission；F.this.commission=commission；super（name，baseSalary）；G.super（name，baseSalary，commission）；
考题
1.publicclassEmployee{2.Stringname；3.doublebaseSalary；4.Employee（Stringname，doublebaseSalary）{5.this.name=name；6.this.baseSalary=baseSalary；7.}8.}And：1.publicclassSalespersonextendsEmployee{2.doublecommission；3.publicSalesperson（Stringname，doublebaseSalary，4.doublecommission）{5.//insertcodehere6.}7.}Whichcode，insertedatline7，completestheSalespersonconstructor？（）A.this.commission=commission；B.superb（）；commission=commission；C.this.commission=commission；superb（）；D.super（name，baseSalary）；this.commission=commission；E.super（）；this.commission=commission；F.this.commission=commission；super（name，baseSalary）；
考题
The EMPLOYEES table contains these columns:LAST_NAME VARCHAR2 (25)SALARY NUMBER (6,2)COMMISSION_PCT NUMBER (6)You need to write a query that will produce these results:1. Display the salary multiplied by the commission_pct.2. Exclude employees with a zero commission_pct.3. Display a zero for employees with a null commission value. Evaluate the SQL statement:SELECT LAST_NAME, SALARY*COMMISSION_PCT FROM EMPLOYEESWHERE COMMISSION_PCT IS NOT NULL;What does the statement provide? （）A. All of the desired resultsB. Two of the desired resultsC. One of the desired resultsD. An error statement
考题
The EMPLOYEE tables has these columns:LAST_NAME VARCHAR2(35)SALARY NUMBER(8,2)COMMISSION_PCT NUMBER(5,2)You want to display the name and annual salary multiplied by the commission_pct for all employees. For records that have a NULL commission_pct, a zero must be displayed against the calculated column.Which SQL statement displays the desired results? （）A. SELECT last_name, (salary * 12) * commission_pct FROM EMPLOYEES;B. SELECT last_name, (salary * 12) * IFNULL(commission_pct, 0) FROM EMPLOYEES;C. SELECT last_name, (salary * 12) * NVL2(commission_pct, 0) FROM EMPLOYEES;D. SELECT last_name, (salary * 12) * NVL(commission_pct, 0) FROM EMPLOYEES;
考题
Management has asked you to calculate the value 12*salary* commission_pct for all the employees in the EMP table. The EMP table contains these columns:LAST NAME VARCNAR2(35) NOT NULLSALARY NUMBER(9,2) NOT NULLCOMMISION_PCT NUMBER(4,2)Which statement ensures that a value is displayed in the calculated columns for all employees? （）A. SELECT last_name, 12*salary* commission_pct FROM emp;B. SELECT last_name, 12*salary* (commission_pct,0) FROM emp;C. SELECT last_name, 12*salary*(nvl(commission_pct,0)) FROM emp;D. SELECT last_name, 12*salary*(decode(commission_pct,0)) FROM emp;
热门标签
最新试卷