数据库创建和备份

--创建数据库

create database mydb

on primary

(

name=mydbdata,

Filename=‘E:\mydb_data.mdf‘,

size=5mb,

maxsize=6mb,

Filegrowth=1mb

)

log on

(

name=mydblog,

filename=‘E:\mydb_log.ndf‘,

size=2mb,

maxsize=5mb,

filegrowth=1%

)

--删除数据库

use master

go

if exists(select * from sysdatabases where name=‘mydb‘)

drop database mydb

go

--添加次数据库

alter database mydb

add log file

(

name=mydalog2,

filename=‘E:\mydb_log2.ndf‘,

size=1mb,

maxsize=5mb,

filegrowth=1%

)

--删除次数据库

alter database mydb

remove  file mydalog2

--修改数据库名字

alter database mydb

modify name=youdb

--备份数据库 --name=‘mydbbackup‘是备注随便写

backup database mydb to disk=‘E:\mydbbackup.bak‘ with format, name=‘mydbbackup‘

--恢复数据库

USE master

GO

restore database mydb from disk=‘E:\mydbbackup.bak‘

GO