在SQL Server2005中用语句创建数据库和表:
具体示例如下:
use master
go
if exists (select * from sysdatabases where name='Study')
--判断Study数据库是否存在,如果是就进行删除
drop database Study
go
EXEC sp_configure 'show advanced options', 1
GO
-- 更新当前高级选项的配置信息
RECONFIGURE
GO
EXEC sp_configure 'xp_cmdshell', 1
GO
-- 更新当前功能(xp_cmdshell)的配置信息。
RECONFIGURE
GO
exec xp_cmdshell 'mkdir D:data', NO_OUTPUT
--利用xp_cmdshell 命令创建文件夹,此存储过程的第一个参数为要执行的有效dos命令,第二个参数为是否输出返回信息。
go
create database Study--创建数据库
on primary
(
name='Study_data',--主数据文件的逻辑名
fileName='D:dataStudy_data.mdf',--主数据文件的物理名
size=10MB,--初始大小
filegrowth=10% --增长率
)
log on
(
name='Study_log',--日志文件的逻辑名
fileName='D:dataStudy_data.ldf',--日志文件的物理名
size=1MB,
maxsize=20MB,--最大大小
filegrowth=10%
)
go
use Study
go
if exists (select * from sysobjects where name='Student')--判断是否存在此表
drop table Student
go
create table Student
(
id int identity(1,1) primary key,--id自动编号,并设为主键
[name] varchar(20) not null,
sex char(2) not null,
birthday datetime not null,
phone char(11) not null,
remark text,
tId int not null,
age as datediff(yyyy,birthday,getdate())--计算列。
)
go
if exists (select * from sysobjects where name='Team')
drop table Team
go
create table Team
(
id int identity(1,1) primary key,
tName varchar(20) not null,
captainId int
)
go
alter table Student
add
constraint CH_sex check(sex in ('男','女')),--检查约束,性别必须是男或女
constraint CH_birthday check(birthday between '1950-01-01' and '1988-12-31'),
constraint CH_phone check(len(phone)=11),
constraint FK_tId foreign key(tId) references Team(id),--外键约束,引用Team表的主键
constraint DF_remark default('请在这里填写备注') for remark--默认约束,
go
alter table Team
add
constraint UK_captainId unique(captainId)--唯一约束
go
insert into Team values('第一组',1)
insert into Team values('第二组',2)
insert into Team values('第三组',3)
insert into Team values('第四组',4)
insert into Team values('第五组',5)
insert into Student values('小强','男','1982-6-9','23456789451','来自河北',1)
insert into Student values('小昭','男','1987-6-9','78945678945','山东',4)
insert into Student values('小溪','男','1982-6-9','65987845651','抚顺',3)
insert into Student values('小怜','男','1981-6-9','25487965423','天津',5)
insert into Student(name,sex,birthday,phone,tId) values('李真','男','1984-6-9','25487965423',5)
select * from Team
select * from Student
if exists (select * from sysobjects where name='teacher')
drop table teacher
go
create table teacher
(
id int identity (1,1) primary key,
name varchar(20),
address varchar(20)
)
go