题目内容: EMP 表EMP 表列名称定义列名称定义EmpnoNUMBER(4),PKDeptnoNUMBER(2)EnameVARCHAR2(10)DnameVARCHAR2(14)JobVARCHAR2(9)LocVARCHAR2(13)MgrNUMBER(4)HiredateDATESalNUMBER(7,2)CommNUMBER(7,2)DeptnoNUMBER(2),FKEmpno—-EmployeeEname—-Employee NameJob—-Job TitleMgr—-Manager of EmployeeHiredate—-Hire dateSal—-Salary(每月)Comm—-Commission(销售)Deptno—-Department NumberDname—-Department NameLoc—-Location of Operation1.下面哪一种 SQL 语句将创立一种顾客名为 ACCTSUPER、密码为 SUPERPWORD 的新顾客?a.CREATE USER acctsuper PASSWORD superpword;b.CREATE USER acctsuper PASS superpword;c.CREATE USER acctsuper IDENTIFIED BY superpword;d.CREATE acctsuper WITH PASSWORD superpword;2.下面哪一种 SQL 语句将生成 EMP_FMPNO 序列中的下一种值?a.SELECT emp_empno.nextvalue FROM dual;b.SELECT emp_empno.currentvalue FROM dual;c.SELECT emp_empno.nextval FROM dual;d.SELECT emp_empno.currentval FROM dual;3.下面哪一种 SQL 语句将修改既有的视图 EMP_SAL_VU,使顾客不能更新它显示的数据?a.CREATE OR REPLACE VIEW emp_sal_vuAS SELECT empno,ename,sal,comm FROM empWITH READ ONLY;b.REPLACE VIEW emp_sal_vu WITH READ ONLY;c.ALTER VIEW emp_vu READ ONLY;d.CREATE OR REPLACE emp_sal_vuAS SELECT empno,ename,sal,comm FROM empWITH CHECK OPTION;4.在发生下面哪些状况时,Oracle9i 将自动创立一种索引?选出所有对的的答案.a.创立一种序列b.创立一种 PRIMARY KEY 约束c.成功执行 CREATE INDEX 命令d.创立一种 PUBLIC 同义词5.下面哪一项可以包括在一种简单视图中?a.组合的数据b.联接的表c.SUM 函数d.列别名6.下面哪些 SQL 命令向名为 ACCTSUPER 的顾客授予系统权限?选出所有对的的答案.a.GRANT INSERT ON emp TO acctsuper;b.GRANT CREATE TABLE TO acctsuper;c.GRANT SELECT ON emp TO acctsuper;d.GRANT UPDATE ANY TABLE TO acctsuper;e.GRANT CREATE SESSION TO acctsuper;7.下面哪一种 SQL 命令将创立一种视图,该视图严禁顾客执行任何这样的操作:使视图后来无法访问视图目前显示的行?a.XREATE VIEW eejobs30AS SELECT empno,ename...