sql数据库的备份还原问题

今天工作中犯了一个严重的错误，就是在sql中写了一个update语句，还没写条件呢，结果误按了F5，唉，太佩服自己啦。。。这个脑子怎么不管用了呢？？

唉不说了，我在网上翻来覆去的找资料，最终想是不是可以通过日志文件还原数据，结果瞅着了一个。不管怎么样先记住这次教训！

为了以防万一，我还是时刻提醒自己。

-- 完整备份
Backup Database NorthwindCS
To disk = ' G:\Backup\NorthwindCS_Full_20070908.bak '

-- 差异备份
Backup Database NorthwindCS
To disk = ' G:\Backup\NorthwindCS_Diff_20070908.bak '
With Differential

-- 日志备份，默认截断日志
Backup Log NorthwindCS
To disk = ' G:\Backup\NorthwindCS_Log_20070908.bak '

-- 日志备份，不截断日志
Backup Log NorthwindCS
To disk = ' G:\Backup\NorthwindCS_Log_20070908.bak '
With No_Truncate

-- 截断日志不保留
Backup Log NorthwindCS
With No_Log

-- 或者
Backup Log NorthwindCS
With Truncate_Only
-- 截断之后日志文件不会变小
-- 有必要可以进行收缩

-- 文件备份
Exec Sp_Helpdb NorthwindCS -- 查看数据文件
Backup Database NorthwindCS
File = ' NorthwindCS '     -- 数据文件的逻辑名
To disk = ' G:\Backup\NorthwindCS_File_20070908.bak '

-- 文件组备份
Exec Sp_Helpdb NorthwindCS -- 查看数据文件
Backup Database NorthwindCS
FileGroup = ' Primary '     -- 数据文件的逻辑名
To disk = ' G:\Backup\NorthwindCS_FileGroup_20070908.bak '
With init

-- 分割备份到多个目标
-- 恢复的时候不允许丢失任何一个目标
Backup Database NorthwindCS
To disk = ' G:\Backup\NorthwindCS_Full_1.bak '
     , disk = ' G:\Backup\NorthwindCS_Full_2.bak '

-- 镜像备份
-- 每个目标都是相同的
Backup Database NorthwindCS
To disk = ' G:\Backup\NorthwindCS_Mirror_1.bak '
Mirror
To disk = ' G:\Backup\NorthwindCS_Mirror_2.bak '
With Format -- 第一次做镜像备份的时候格式化目标

-- 镜像备份到本地和远程
Backup Database NorthwindCS
To disk = ' G:\Backup\NorthwindCS_Mirror_1.bak '
Mirror
To disk = ' \\192.168.1.200\Backup\NorthwindCS_Mirror_2.bak '
With Format

-- 每天生成一个备份文件
Declare @Path Nvarchar ( 2000 )
Set @Path = ' G:\Backup\NorthwindCS_Full_ '
+ Convert ( Nvarchar , Getdate (), 112 ) + ' .bak '

Backup Database NorthwindCS
To disk = @Path

-- 从NoRecovery或者
-- Standby模式恢复数据库为可用
Restore Database NorthwindCS_Bak
With Recovery

-- 查看目标备份中的备份集
Restore HeaderOnly
From Disk = ' G:\Backup\NorthwindCS_Full_20070908.bak '

-- 查看目标备份的第一个备份集的信息
Restore FileListOnly
From Disk = ' G:\Backup\NorthwindCS_Full_20070908_2.bak '
With File = 1

-- 查看目标备份的卷标
Restore LabelOnly
From Disk = ' G:\Backup\NorthwindCS_Full_20070908_2.bak '

-- 备份设置密码保护备份
Backup Database NorthwindCS
To disk = ' G:\Backup\NorthwindCS_Full_20070908.bak '
With Password = ' 123 ' ,init

Restore Database NorthwindCS
From disk = ' G:\Backup\NorthwindCS_Full_20070908.bak '
With Password = ' 123 '

分类: C#, MySql

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sql数据库的备份还原问题

sql数据库的备份还原问题

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