Evaluate this SQL statement:SELECT ename, sal, 12* sal+100 FROM emp;The SAL column stores the monthly salary of the employee. Which change must be made to the abovesyntax to calculate the annual compensation as "monthly salary plus a monthly bonus of $100

题目

Evaluate this SQL statement:SELECT ename, sal, 12* sal+100 FROM emp;The SAL column stores the monthly salary of the employee. Which change must be made to the abovesyntax to calculate the annual compensation as "monthly salary plus a monthly bonus of $100, multiplied by 12"? （）

A. No change is required to achieve the desired results.

B. SELECT ename, sal, 12* (sal+100) FROM emp;

C. SELECT ename, sal, (12* sal)+100 FROM emp;

D. SELECT ename, sal +100,*12 FROM emp;

相似考题

1.以下说法错误的是( )A.SELECT max(sal),deptno,job FROM EMP group by sal;B.SELECT max(sal),deptno,job FROM EMP group by deptno;C.SELECT max(sal),deptno,job FROM EMP;D.SELECT max(sal),deptno,job FROM EMP group by job;

2.UserSCOTTexecutesthefollowingcommandontheEMPtablebuthasnotissuedCOMMIT，ROLLBACK，oranydatadefinitionlanguage（DDL）command：SQL>SELECTenameFROMempWHEREjob=’CLERK’FORUPDATEOFempno；SCOTThasopenedanothersessiontoworkwiththedatabaseinstance.WhichthreeoperationswouldwaitwhenissuedinSCOTT’ssecondsession（）A.LOCKTABLEempINSHAREMODE；B.LOCKTABLEempINEXCLUSIVEMODE；C.UPDATEempSETsal=sal*1.2WHEREjob=ANAGER？UPDATEempSETsal=sal*1.2WHEREjob=？ANAGER？D.INSERTINTOemp（empno，ename）VALUES（1289，’Harry’）；E.SELECTenameFROMempWHEREjob=’CLERK’FORUPDATEOFempno

3.emp表是雇员信息表,sal字段存放是的雇员的月薪,以下哪个变量可以存放sal类型的值()A.v_sal emp%rowtype;B.v_sal emp.sal%type;C.v_sal emp.sal.%type;D.v_sal %type(emp.sal);E.v_sal (emp.sal)%type;

4.以下插入记录正确的( )A.insert into emp(ename,hiredate,sal) values (value1,value2,value3);B.insert into emp (ename,sal)values(value1,value2,value3);C.insert into emp (ename)values(value1,value2,value3);D.insert into emp (ename,hiredate,sal)values(value1,value2);

更多“Evaluate this SQL statement:SELECT ename, sal, 12* sal＋100 FROM emp;The SAL column stores ”相关问题

  • 第1题：

    在PL／SQL中定义一个可以存放雇员表(EMP)的员工名称(ENAME)的PL／SQL表类型,应该()

    A.type array arr_type[emp.ename%type] index by binary_integer;

    B.type table arr_type[emp.ename%type] index by binary_integer;

    C.type arr_type is table of emp.ename%type index by binary_integer;

    D.type arr_type is pl_sql table of emp.ename%type index by binary_integer;


    参考答案：C

  • 第2题：

    （33）如果对关系 emp（eno, ename, salary）成功执行下面的SQL语句：

    CREATE CLUSTER INDEX name_index ON emp（salary）

    其结果是

    A）在 emp表上按sal娜升序创建了一个聚簇索引

    B）在 emp表上按salary降序创建了一个聚簇索引

    C）在 emp表上按salary升序创建了一个唯一索引

    D）在 emp表上按salary降序创建了一个唯一索引


    正确答案：A

  • 第3题：

    列出薪水高于所在部门平均工资的员工信息（)。

    A．select deptno,ename,sal from emp a where sal＞ (select avg(a.sal) from emp where deptno=a.deptno);

    B．select deptno,ename,sal from emp a where sal＞ (select avg(sal) from emp where deptno=a.deptno);

    C．select a.deptno,a.ename,a.sal from emp a,emp b where a.deptno=b.deptno and a.sal＞avg(b.sal);

    D．select a.deptno,a.ename,a.sal from emp a,emp b where a.deptno=b.deptno and b.sal＞avg(a.sal);


    select deptno,ename,sal from emp a where sal＞(select avg(sal) from emp where deptno=a.deptno);

  • 第4题：

    授予sa用户在SCOTT.EMP表中SAL列的更新权限的语句是()。

    A.GRANT CHANGE ON SCOTT.EMP TO SA

    B.GRANT UPDATE ON SCOTT.EMP（SAL） TO SA

    C.GRANT UPDATE （SAL） ON SCOTT.EMP TO SA

    D.GRANT MODIFY ON SCOTT.EMP（SAL） TO SA


    参考答案：B

  • 第5题：

    以下查询语句合法的是哪三项?()

    A.select empno ,sum(sal) from scott.emp group by deptno

    B.select * from scott.emp

    C.select sum(sal) from scott.emp group by deptno

    D.select count(empno) from scott.emp


相关内容