— ____________ is it? — It's eleven o'cl 发布时间:2017-05-02 20:40 │ 来源:www.tikuol.com 题型:选择题 问题: — ____________ is it?— It's eleven o'clock.[ ]A. What timeB. WhatC. How
题型:选择题 利用SQL命令从职工表中派生出含有“职工号”、“姓名”字段的视图,下列语句正确的是( ).A.CREATE VIEW ZG_view; SELECT职工号,姓名FROM职工表B.CREATE VIEW ZG_view AS; SELECT职工号,姓名FROM职工表C.CREATE QUERY ZG_view; SELECT职工号,姓名FROM职工表D.CREATE QUERY ZG_view AS; SELECT职工号,姓名FROM职工表 查看答案