智慧树知到《SqlServer数据库原理与应用》章节测试答案


C.drop column address from student

D.delete address from student

正确答案:drop column address from student

3、在数据表中更新数据的命令是()

A.select

B.insert into

C.update…set

D.delete

正确答案:update…set

4、要删除数据表中满足某条件的记录的命令是()

A.delete

B.delete...from...

C.delete from...

D.delete from...where...

正确答案:delete from...where...

5、向student数据表中添加部分记录的命令是()

A.insert into

B.insert into student values()

C.insert into student() values()

D.insert into student ...values...

正确答案:insert into student() values()

6、向student数据表中添加全部记录的命令是()

A.insert into

B.insert into student

C.nsert into student values()

D.nsert into student() values()

正确答案:nsert into student values()

7、向student表中添加某一列address的命令是()

A.alter table student add address varchar(50)

B.add address varchar(50)

C.insert into address varchar(50)

D.insert into student address varchar(50)

正确答案:alter table student add address varchar(50)

8、将student表中的列address的数据类型中的字节大小改为varchar(50),使用的语句命令是()

A.update student set

B.add address varchar(50)

C.alter table student alter address varchar(50)

D.alter address varchar(50)

正确答案:alter table student alter address varchar(50)

9、创建数据表的语法命令是()

A.create table

B.create database

C.create view

D.creat table

正确答案:create table

10、更新student数据表中address列的数据类型中字节长度为varchar(50)

A.alter table student drop column address

B.alter table student alter address varchar(50)

C.drop column address from student

D.delete address from student

正确答案:alter table student alter address varchar(50)

11、修改student表中学号为2015001的学生的姓名为“张三”

A.update student set sname=’ 张三’ where sid=’2015001’

B.update student set sname=张三 where sid=’2015001’

C.update student set sname=”张三” where sid=’2015001’

D.alter table student alter sname=’ 张三’ where sid=’2015001

正确答案:update student set sname=’ 张三’ where sid=’2015001’

12、向学生表student中插入记录:学号(sid)、姓名(sname)、所在系(depart),值为(‘2016001‘,’张红‘,’管理系‘)