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
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
SELECT emp_empno
nextvalue FROM dual;b
SELECT emp_empno
currentvalue FROM dual;c
SELECT emp_empno
nextval FROM dual;d
SELECT emp