数据库备份

-- NorthWind是数据库名字
--------------------完整备份默认追加到现有的文件---------------
backup database NorthWind
 
To disk=‘d:\backup\NorthWindCS-Full-2010-11-23.bak‘
 
--------完整备份，覆盖现有的文件
Backup database NorthWind
To disk=‘d:\backup\NorthWindCS-Full-2010-11-23.bak‘
With init---覆盖现有文件代码
 
--------差异备份（上次一完整备份以来改变的数据页）
backup database NorthWind
To Disk=‘d:\backup\NorthWindCS-Full-2010-11-23.bak‘
with NAME=‘[BackupName]‘,DIFFERENTIAL

 
-----事物日志备份，会自动截断日志(默认会阶段日志)
backup log NorthWind
To Disk=‘d:\backup\NorthWindCS-log-2010-11-23‘
 
-----事物日志备份，不截断日志(默认会阶段日志)
backup log NorthWind
To Disk=‘d:\backup\NorthWindCS-log-2010-11-23‘
With No_Truncate
 
-----不备份直接阶段日志，在SQL SERVER2008中不再支持。
backup log NorthWind With No_Log
backup log NorthWind With Tuancate_only
 
-----SQL SERVER 2008 替代的截断日志方法
alter database NorthWind set Recovery Simple
exec sp_helpdb NorthWInd
use NorthWind 
dbcc shrinkfile(‘NorthWind_log‘)
alter database NorthWind set Recovery Full
 
----超大型数据库的文件和文件组备份
Exec sp_helpdb NorthWind
backup database NorthWind File=‘NorthWind_Current‘
to disk=‘h:\backup\NorthwindCS_Full_2010031.bak‘
backup database NorthWind FileGroup=‘Current‘
to disk=‘h:\backup\NorthwindCS_FG_2010031.bak‘
 
---仅复制备份，不影响现有的备份序列
backup database NorthWind
To disk=‘h:\backup\NorthwindCS_Full_2010031.bak‘
With Copy_only
 
 
--尾部日志备份,备份完成后数据库不再提供访问
use master
go
backup log NorthWind
to disk=‘h:\backup\Northwind-taillog-20101031.bak‘
With NoRecovery
 
--回复数据库提供访问
Restore databse NorthWind with Recovery
 
--分割备份到多个目标文件
backup database NorthWind 
to disk=‘h:\backup\Northwind-part1.bak‘,
disk=‘h:\backup\NorthwindCS-part2.bak‘
 
--镜像备份，需要加入With Format
backup database NorthWind
to disk=‘h:\backup\NorthwindCS-Mirror1.bak‘
Mirror to disk=‘h:\backup\NorthwindCS-Mirror2.bak‘----Mirror镜像
With Format
 
 
--备份到远程服务器
--使用SQL SERVER 的服务启动账号访问远程共享可写文件夹
backup database Northwind
to disk=‘\\192.168.3.20\backup\nw-yourname.bak‘
 
--备份到远程服务器,指定访问远程服务器的账号和密码
Exec sp_configure
Exec Sp_COnfigure ‘show advanced options‘,1
Reconfigure with Overrid
Exec sp_configure ‘xp_cmdshell‘,1
Reconfigure with override
 
 
Exec xp_cmdshell
‘net use \\192.168.10.101‘ /user:administrator password‘
 
backup database Northwind 
to disk=‘\\192.168.10.101\backup\nw-fy.bak‘
 
Exec sp_configure ‘xp_cmdshell‘,0
Reconfigure with override
 
 
--------------------------------------
--备份压缩
--------------------------------------
Backup Database AdventureWorks
To disk=‘h:\backup\adv不压缩备份.bak‘
--132MB  花费 7.789 秒(16.877 MB/秒)。
 
--备份到NTFS目录
Backup Database AdventureWorks
To disk=‘H:\backup\test\advNTFS压缩备份.bak‘
--60MB     花费 11.871 秒(11.073 MB/秒)。
 
Backup Database AdventureWorks
To disk=‘h:\backup\adv压缩备份.bak‘
With Compression
--132MB  花费 7.789 秒(16.877 MB/秒)。
--34MB    花费 3.775 秒(34.820 MB/秒)。
 
--启动默认备份压缩
EXEC sp_configure ‘backup compression default‘, ‘1‘
RECONFIGURE WITH OVERRIDE
GO

DECLARE @filename VARCHAR(255)
DECLARE @date DATETIME
SELECT @date=GETDATE()
SELECT @filename = ‘D:\BackUp\SQL-‘+CAST(DATEPART(yyyy,@date) as varchar)
+‘-‘+CAST(DATEPART(mm,@date) as varchar)+‘-‘+CAST(DATEPART(dd,@date) as varchar)+‘.bak‘
BACKUP DATABASE [backupname] TO  DISK = @filename WITH INIT
GO

DECLARE @filename VARCHAR(255)
DECLARE @date DATETIME
SELECT @date=GETDATE()
SELECT @filename = ‘‘D:\BackUp\SQL-‘‘+CAST(DATEPART(yyyy,@date) as varchar)
+‘‘-‘‘+CAST(DATEPART(mm,@date) as varchar)+‘‘-‘‘+CAST(DATEPART(dd,@date) as varchar)+‘‘.bak‘‘
BACKUP DATABASE 【backupname】TO  DISK = @filename WITH INIT
GO