1 --创建一个数据库
 2 create database helloworld1
 3 
 4 use master
 5 drop database helloworld1
 6 
 7 --用helloworld1这个数据库
 8 use helloworld1
 9 
10 --创建一个表格teacher
11 create table Teacher
12 (
13    Id int primary key identity(1,1),   
14    Name nvarchar(10),
15    Class nchar(2)
16 )
17 
18 create table Location
19 (
20    Class nchar(2),
21    location nvarchar(5)
22 )
23 
24 --看看 teacher这个表格有啥
25 select * from Teacher
26 select * from Location
27 
28 --向这个Teacher中插入这几行内容
29 insert into Teacher
30        values(‘女娲娘娘‘,‘道家‘),
31              (‘元始天尊‘,‘道家‘),
32              (‘释迦摩尼佛‘,‘佛家‘),
33              (‘耶稣‘,‘基督‘),
34              (‘绿度母‘,‘佛家‘),
35              (‘九天应元雷声普化天尊‘,‘道家‘),
36              (‘无盐娘娘‘,‘道家‘),
37              (‘王母娘娘‘,‘道家‘),
38              (‘马克思，恩格斯‘,‘优秀‘)
39              --因为只能写两字，所以只能写优秀了
40 
41 --向这个Location中插入这几行内容
42 insert into Location
43         values(‘佛家‘,‘印度‘),
44               (‘道家‘,‘中国‘),
45               (‘基督‘,‘西方‘),
46               (‘儒家‘,‘中国‘)
47 
48 select * from
49 Location left join Teacher on Teacher.Class=Location.Class