共找到 51 与employee 相关的结果,耗时3 ms
以下SQL99语句描述的是(26)。 CREATETYPE Employee( Name String, ssn integer); CREATE TYPE Manager UNDER Employee( Degree String, Dept String);A.关联关系B.嵌套关系C.继承类型
设有员工实体Employee(employeeID,name,sex,age,tel,department),其中employeeID为员工号,name为员工姓名,sex为员工性别,age为员工年龄,tel为员工电话(要求记录该员工的手机号码和办公室电话),departID为员工所在部门号(要求参
●将表employee中name列的修改权限赋予用户Liu,并允许其将该权限授予他人,应使用的SQL语句为:GRANT (52) ON TABLE employee TO Liu (53) ;(52)A.UPDATE(name)B.DELETEC.SELECTD.INSERT(53)A.FORAL
● 收回用户li对表employee的查询权限,同时级联收回li授予其他用户的该权限,SQL语句为:(52) select ON TABLE employee FROM li (53) ;(52)A. GRANTB. GIVEC. CALL BACKD. REVOKE(53)A. RESTRICT
●To determine whether or not the employee correctly understands the message, the project manager needs to(75).(75) A. reduce the filteringB. eliminat
●以下的SQL 99语句,Dept与Employee之间的关系是 (63) 。CREATE TYPE Employee(name string,ssn integer);CREATE TYPE Dept(Name stringHead ref(Employee) SCOPE Employee );
Who might be most interested in this piece of information?A. Job hunters.B. Employees in blue-chip companies.C. Mid-level managers.D. Researchers on
A.BFILEB.LONGRAWC.BLOBD.CLOB
授予用户U1,U2和U3在关系employee的salary属性上的UPDATE权限的语句是A.GRANT ON employee TOU1,U2,U3B.GRANT UPDATE ON employee TO U1,U2,U3C.GRANT UPDATE(salary) ON employeeD
回收用户U1,U2和U3在关系employee的salary属性上的UPDATE限的语句是A.REVOKE UPDATE(salary) ON employee(U1,U2,U3)B.REVOKE UPDATE(salary)ON employee FROM U1,U2,U3C.REVOKE UP
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